audinate presentation€¦ · title: audinate presentation author: [email protected]...
TRANSCRIPT
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BENVENUTI AL WEBINAR DANTE LIVELLO 3
Inizieremo alle 10:00
Pausa di 30min alle 12:30 fino alle 13:00
Poi seguiremo fino alle 15:00
Per domande usate Q&A e iniziate con la parola “DOMANDA…”
ATTENZIONE: Leggete le domande degli altri partecipanti prima di chiedere la vostra
Alla fine riceverete la registrazione video e i slide in PDF
Creare un account http://www.audinate.com/certify
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Certificazione Dante
Livello 3 - Italiano
Augusto “Gus” Marcondes
Technical Training Manager EMEA
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Argomenti di networking per oggi
Porte di rete
Informazioni su Master Clock
Modelli di rete a layer, ARP
Segmentazione del dominio broadcast
Gestione delle connessioni simultanee
Protocollo PTP (Precision Time Protocol)
Associando IP & MAC Addresses, Il modello OSI
Gestione del "Rumore" in una rete
Configurazioni principali IP
DNS
DHCP/Link Local
TCP/UDP
Unicast, Multicast e Broadcast
Qos
Implicazioni di VLAN e Trunk
Metodi di trasmissione
Metodi di distribuzione
Qualità del servizio - Priorità del traffico
VLAN, Trunk, VLAN con tag, STP, GAL
Indirizzi IP, Maschera di sub-rete, Intervallo LAN
Servizio di nomi di dominio
Configurazioni automatiche d´indirizzi
EN
HA
NC
EN
EW
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Impostazioni IP : Indirizzo IP, Subnet Mask, Gateway
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Impostazioni IP di base:
LAN
192.168.0.101
192.168.0.52
LAN
SWITCH
I dispositivi della rete locale (LAN) vengono contattati direttamente.
Una connessione di rete è
nota anche come
"sessione".
Client
Server Un "client" avvia una connessione.
Un "server" accetta una
connessione.
Facile da ricordare se si
considera client web e server.
IP Address
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INTERNET
66.125.231.94
WAN
Core IP Settings:
LAN
192.168.0.1
ROUTER
SWITCH
192.168.0.101
I dispositivi della rete WAN (Wide Area Network) vengono raggiunti tramite il
router.
I dispositivi della rete locale (LAN) vengono contattati direttamente.
GATEWAY
Gateway (Router)
97.2.5.21
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Core IP Settings
In che modo un dispositivo sa di connettersi sulla
LAN o tramite il gateway?
IP Address & Subnet Mask
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Core IP Settings: Subnet Mask & Gateway
Altrimenti:
L'indirizzo IP di destinazione viene passato al gateway (Router).
Simile a chiamare lo "Zero" per l'operatore telefonico
LAN WAN
IP Address:
Subnet Mask:
LAN Range:
192.168. 10. 11
255.255.255. 0
192.168. 10.
Se la destinazione è sulla LAN:
Accede ai dispositivi direttamente sugli switch di rete locale.
Il router non è coinvolto in questa connessione.
xxx
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Quiz: Subnet Mask
Sono ricercati sulla LAN o attraverso il gateway?
192.168.10.18 ...
18.231.109.77 ...
192.168.1.113 ...
IP Address:
Subnet Mask:
LAN
Gateway (WAN)
Gateway (WAN)
192.168. 10. 11
255.255.255. 0
192.168. 10. xxx10. LAN Range: 10.
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Core IP Settings: Subnet Mask
LAN Range: 192.168. 10. xxx
IP Address:
Subnet Mask:
LAN Range:
10. 0. 1. 11
255.255.255. 0
10. 0. 1. xxx
IP Address:
Subnet Mask:
192.168. 10. 11
255.255.255. 0
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Core IP Settings: Subnet Mask
LAN Range: 192.168. 10. xxx
IP Address:
Subnet Mask:
LAN Range:
192.168. 10. 11
255.255. 0. 0
192.168. xxx. xxx
IP Address:
Subnet Mask:
192.168. 10. 11
255.255.255. 0
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Core IP Settings: Subnet Mask
Residential:
Dante Audio Default:
255.255.255. 0
255.255. 0. 0
Internet Service Provider:
Corp Network:
255.255.255.248
255.255.252. 0
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Core IP Settings: Subnet Mask
coloro che capiscono il sistema binario
e quelli che non ne capiscono.
Ci sono 10 tipi di persone
nel mondo:
Binary Decimal
00 0
01 1
10 2
11 3
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Core IP Settings: 32-bit Addresses
Notazione quadrupla punteggiata: 192.168.1.12
Intervallo di valori di ogni campo: 0 – 255 (8 bits)
4 campi x 8 bit ciascuno: 32-bit address
1100 0000 1010 1000 0000 0001 0000 1100. . .192 168 1 12. . .
Chiamiamo questa notazione "dotted-quad" o "punto-
decimale".
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Core IP Settings: 32-bit Addresses
Indirizzo IP e Subnet Mask sono numeri a 32 bit.
La subnet mask definisce cifre binarie significative.
1100 0000 1010 1000 0000 0001 0000 1100. . .192 168 1 12. . .
1111 1111 1111 1111 1111 1111 0000 0000. . .255 255 255 0. . .
1100 0000 1010 1000 0000 0001 xxxx xxxx. . .192 168 1 x. . .
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Core IP Settings: Subnet Mask Length
Questa impostazione dell'intervallo LAN è comunemente
abbreviata: 192.168.1.12 /24
1100 0000 1010 1000 0000 0001 0000 1100. . .192 168 1 12. . .
1111 1111 1111 1111 1111 1111 0000 0000. . .255 255 255 0. . .
1100 0000 1010 1000 0000 0001 xxxx xxxx. . .192 168 1 x. . .
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Core IP Settings: Subnet Mask Length
È possibile accorciare la maschera "mid-field":
192.168.0.12 /22
1100 0000 1010 1000 0000 0001 0000 1100. . .192 168 1 12. . .
1111 1111 1111 1111 1111 1100 0000 0000. . .255 255 252 0. . .
1100 0000 1010 1000 0000 00xx xxxx xxxx. . .192 168 0-3 x. . .
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Core IP Settings: Subnet Mask Length
È possibile accorciare la maschera "mid-field":
192.168.26.12 /22
1100 0000 1010 1000 0001 1010 0000 1100. . .192 168 26 12. . .
1111 1111 1111 1111 1111 1100 0000 0000. . .255 255 252 0. . .
1100 0000 1010 1000 0001 10xx xxxx xxxx. . .192 168 24-27 x. . .
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Core IP Settings: Subnet Mask Length
1100 0000 1010 1000 0001 1010 0000 1100. . .192 168 26 12. . .
1111 1111 1111 1111 0000 0000. . .255 255 0. . .
1111 1111255
La subnet mask ha una lunghezza.
Una stringa di binari 1, seguita da binari 0.
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Core IP Settings: Subnet Mask Length
1100 0000 1010 1000 0001 1010 0000 1100. . .192 168 26 12. . .
1111 1111 0000 0000 1111 1111 0000 0000. . .255 0 0. . .255
La subnet mask ha una lunghezza.
Una stringa di binari 1, seguita da binari 0.
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Core IP Settings: Subnet Mask Length
1100 0000 1010 1000 0001 1010 0000 1100. . .192 168 26 12. . .
1111 1111 0000 0000. . .255
0000 111115 0. . .
1111 1111255
La subnet mask ha una lunghezza.
Una stringa di binari 1, seguita da binari 0.
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Core IP Settings: Subnet Mask Valid Values
Mask Binary Value Answers
255 1 1 1 1 1 1 1 1 1
254 1 1 1 1 1 1 1 0 2
252 1 1 1 1 1 1 0 0 4
248 1 1 1 1 1 0 0 0 8
240 1 1 1 1 0 0 0 0 16
224 1 1 1 0 0 0 0 0 32
192 1 1 0 0 0 0 0 0 64
128 1 0 0 0 0 0 0 0 128
0 0 0 0 0 0 0 0 0 256
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Intervalli LAN riservati
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INTERNET
192.168.0.251
WAN
Ponder This…
LAN WAN
Questo PC può connettersi a questo server?http://192.168.0.251/
192.168.0.101 /24
ROUTER
SWITCH
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IP Address Range: Common Uses
192.168.___.___
10.___.___.___
172.16-31.___.___ Dante Secondary (172.31.x.x)
169.254.___.___ Link Local, Dante Primary
Reserved LAN Ranges
Questi sono riservati per l'uso LAN locale.
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IP Address Range: Common Uses
___.___.___. 0 Network Identifier
___.___.___. 1 Commonly Used For Router
or Network Infrastructure___.___.___.254
___.___.___.255 Broadcast Address
Addresses to Avoid
Indirizzi che spesso hanno un significato o un ruolo.
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Quiz: Valid IP Ranges
No: Avoid 0 or 255 in last field.
Si tratta di indirizzi LAN validi?
192.168. 10. 0 …
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Quiz: Valid IP Ranges
No: Avoid 0 or 255 in last field.
Yes.
Si tratta di indirizzi LAN validi?
192.
10.
168.
255.
10.
0.
0
15
…
…
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Quiz: Valid IP Ranges
No: Avoid 0 or 255 in last field.
Yes.
Maybe: Could be Router.
Si tratta di indirizzi LAN validi?
192.
10.
172.
168.
255.
26.
10.
0.
0.
0
15
1
…
…
…
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Quiz: Valid IP Ranges
No: Avoid 0 or 255 in last field.
Yes.
Maybe: Could be Router.
No: Not in a LAN range.
Si tratta di indirizzi LAN validi?
192.
10.
172.
192.
168.
255.
26.
169.
10.
0.
0.
150.
0
15
1
11
…
…
…
…
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DNS (Servizio Nome x Dominio)
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Argomenti di networking per oggi
Porte di rete
Informazioni su Master Clock
Modelli di rete a layer, ARP
Segmentazione del dominio broadcast
Gestione delle connessioni simultanee
Protocollo PTP (Precision Time Protocol)
Associando IP & MAC Addresses, Il modello OSI
Gestione del "Rumore" in una rete
Configurazioni principali IP
DNS
DHCP/Link Local
TCP/UDP
Unicast, Multicast e Broadcast
Qos
Implicazioni di VLAN e Trunk
Metodi di trasmissione
Metodi di distribuzione
Qualità del servizio - Priorità del traffico
VLAN, Trunk, VLAN con tag, STP, GAL
Indirizzi IP, Maschera di sub-rete, Intervallo LAN
Servizio di nomi di dominio
Configurazioni automatiche d´indirizzi
EN
HA
NC
EN
EW
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DNS: Multi Layer Look-Up
Protocol Folder/Request
Se tutto è gestito da indirizzi IP,
come posso accedere a un sito
web?
https://www.audinate.com/certify/Server Domain Name or IP Address
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DNS: Multi Layer Look-Up
Se tutto è gestito da indirizzi IP,
come posso accedere a un sito
web?
https://www.audinate.com/certify/
https://45.33.44.50/certify/
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DNS: Multi Layer Look-Up
DNS (Domain Name Service)
Risolve i nomi in indirizzi IP
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DNS: Multi Layer Look-Up
Qual'è l'IP per
avtech.ddm ?
avtech.ddm
si risolve in
192.168.0.9
DNS Servers: 192.168.0.7
8.8.8.8
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DNS: Multi Layer Look-Up
http://avtech.ddm
http://192.168.0.9/
DNS Servers: 192.168.0.7
8.8.8.8
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DNS: Multi Layer Look-Up
Qual è l'IP per
www.audinate.com?
Scusa, non lo so.
DNS Servers: 192.168.0.7
8.8.8.8
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DNS: Multi Layer Look-Up
Qual è l'IP per
www.audinate.com?
www.audinate.com
si risolve in
45.33.44.50
DNS Servers: 192.168.0.7
8.8.8.8
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DNS: Multi Layer Look-Up
http://www.audinate.com
http://45.33.44.50/
DNS Servers: 192.168.0.7
8.8.8.8
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DNS: Multi Layer Look-Up
Gateway e Server DNS possono essere lo stesso
indirizzo?
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WANLAN1 2 3 4
A “Wireless Router” Serves Many Functions
WAN
Router:Router wireless domestico tipico:
ROUTER
SWITCH ROUTER
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A “Wireless Router” Serves Many Functions
+
Un mixer utilizzato per richiedere rack di attrezzi
esterni...
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DNS Caching
Include anche:
• DHCP Server
• VPN (Accesso remoto)
• Risoluzione DNS e
memorizzazione nella
cache
1 2 3 4 WAN
Router wireless domestico tipico:
SWITCH ROUTER
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DNS Caching
Qual è l'IP per
www.audinate.com?
DNS Servers: 192.168.0.1
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DNS Caching
Qual è l'IP per
www.audinate.com?
Scusa, non lo so.
DNS Servers: 192.168.0.1
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DNS Caching
www.audinate.com
si risolve in
45.33.44.50
DNS Servers: 192.168.0.1
Qual è l'IP per
www.audinate.com?
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DNS Caching
www.audinate.com
si risolve in
45.33.44.50
DNS Servers: 192.168.0.1
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DNS Caching
http://www.audinate.com
http://45.33.44.50/
DNS Servers: 192.168.0.1
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49
DNS Caching
Qual è l'IP per
www.audinate.com?
www.audinate.com
si risolve in
45.33.44.50
DNS Servers: 192.168.0.1
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DNS Caching
DNS Servers: 192.168.0.1
http://www.audinate.com
http://45.33.44.50/
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DNS Resolution – Network Is Very Large
*.com
*.net
*.gov
*.edu
1 – Nomi locali
2 – Nomi Internet
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Riepilogo DNS
• Il DNS è come una rubrica telefonica, risolvendo i nomi di dominio in indirizzi IP
• Ci possono essere molti server DNS – il sistema li definisce in base alla priorità
• Il processo restituisce la prima risposta che vede, non un sistema di voto.
• Dispositivi localizzati memorizzare nella cache i nomi dei siti comuni per la velocità
Domain Name Service
![Page 54: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/54.jpg)
DHCP e Link Local
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Argomenti di networking per oggi
Porte di rete
Informazioni su Master Clock
Modelli di rete a layer, ARP
Segmentazione del dominio broadcast
Gestione delle connessioni simultanee
Protocollo PTP (Precision Time Protocol)
Associando IP & MAC Addresses, Il modello OSI
Gestione del "Rumore" in una rete
Configurazioni principali IP
DNS
DHCP/Link Local
TCP/UDP
Unicast, Multicast e Broadcast
Qos
Implicazioni di VLAN e Trunk
Metodi di trasmissione
Metodi di distribuzione
Qualità del servizio - Priorità del traffico
VLAN, Trunk, VLAN con tag, STP, GAL
Indirizzi IP, Maschera di sub-rete, Intervallo LAN
Servizio di nomi di dominio
Configurazioni automatiche d´indirizzi
EN
HA
NC
EN
EW
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Automatic IP Addressing: DHCP
DHCP assegna automaticamente:
- IP Address
- Subnet Mask
- Gateway
- DNS
Diverso su ogni dispositivo
Lo stesso su tutti i dispositivi
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Automatic IP Addressing: DHCP
DHCP Settings:
IP Range: Indirizzi IP da distribuire:
DHCP Lease Time:Configurazione "Time to
Live":
192.168.0. 100 to
192.168.0. 254
e.g. – 24 hours
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Automatic IP Addressing: DHCP
? .51 - Static
IP Expiration MAC
ROUTER & DHCP
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Automatic IP Addressing: DHCP
.51 - Static
IP Expiration MAC
.101 2020-06-16 09:30 AA.BB.CC.DD.EE.01
ROUTER & DHCP
.101 – 9:30am
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Automatic IP Addressing: DHCP
.101 – 9:30am .51 - Static?
IP Expiration MAC
.101 2020-06-16 09:30 AA.BB.CC.DD.EE.01
ROUTER & DHCP
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Automatic IP Addressing: DHCP
.101 – 9:30am .51 - Static.102 – 9:40am
IP Expiration MAC
.101 2020-06-16 09:30 AA.BB.CC.DD.EE.01
.102 2020-06-16 09:40 AA.BB.CC.DD.EE.02
ROUTER & DHCP
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Automatic IP Addressing: DHCP
.101 – 9:30am .51 - Static.102 – 9:40am ?
IP Expiration MAC
.101 2020-06-16 09:30 AA.BB.CC.DD.EE.01
.102 2020-06-16 09:40 AA.BB.CC.DD.EE.02
ROUTER & DHCP
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Automatic IP Addressing: DHCP
.101 – 9:30am .51 - Static.102 – 9:40am .103 – 9:45am
IP Expiration MAC
.101 2020-06-16 09:30 AA.BB.CC.DD.EE.01
.102 2020-06-16 09:40 AA.BB.CC.DD.EE.02
.103 2020-06-16 09:45 AA.BB.CC.DD.EE.03
ROUTER & DHCP
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Automatic IP Addressing: DHCP
.101 – 9:30am .51 - Static? .103 – 9:45am
IP Expiration MAC
.101 2020-06-16 09:30 AA.BB.CC.DD.EE.01
.102 2020-06-16 09:40 AA.BB.CC.DD.EE.02
.103 2020-06-16 09:45 AA.BB.CC.DD.EE.03
ROUTER & DHCP
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Automatic IP Addressing: DHCP
.101 – 9:30am .51 - Static.102 – 1:05pm .103 – 9:45am
IP Expiration MAC
.101 2020-06-16 09:30 AA.BB.CC.DD.EE.01
.102 AA.BB.CC.DD.EE.02
.103 2020-06-16 09:45 AA.BB.CC.DD.EE.03
ROUTER & DHCP
2020-06-16 13:05
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Automatic IP Addressing: DHCP
.101 – 9:30am .51 - Static.102 – 1:05pm ?
IP Expiration MAC
.101 2020-06-16 09:30 AA.BB.CC.DD.EE.01
.102 2020-06-16 13:05 AA.BB.CC.DD.EE.02
.103 2020-06-16 09:45 AA.BB.CC.DD.EE.03
ROUTER & DHCP
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Automatic IP Addressing: DHCP
.101 – 9:30am .51 - Static.102 – 1:05pm .104 – 3:10pm
IP Expiration MAC
.101 2020-06-16 09:30 AA.BB.CC.DD.EE.01
.102 2020-06-16 13:05 AA.BB.CC.DD.EE.02
.103 2020-06-16 09:45 AA.BB.CC.DD.EE.03
.104 2020-06-16 15:10 AA.BB.CC.DD.EE.04ROUTER & DHCP
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Automatic IP Addressing: DHCP
.101 – 9:30am .51 - Static.102 – 1:05pm .104 – 3:10pm
IP Expiration MAC
.101 2020-06-16 09:30 AA.BB.CC.DD.EE.01
.102 2020-06-16 13:05 AA.BB.CC.DD.EE.02
.103 2020-06-16 09:45 AA.BB.CC.DD.EE.03
.104 2020-06-16 15:10 AA.BB.CC.DD.EE.04ROUTER & DHCP
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Automatic IP Addressing: DHCP
.101 – 9:30am .51 - Static.102 – 1:05pm .104 – 3:10pm
IP Expiration MAC
.101 AA.BB.CC.DD.EE.01
.102 2020-06-16 13:05 AA.BB.CC.DD.EE.02
.103 2020-06-16 09:45 AA.BB.CC.DD.EE.03
.104 2020-06-16 15:10 AA.BB.CC.DD.EE.04ROUTER & DHCP
2020-06-17 09:30
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Automatic IP Addressing: DHCP
Cosa succede se non è presente alcun server
DHCP?
La maggior parte dei dispositivi accettano "Link Local"
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Automatic IP Addressing: Link Local
Link Local assegna automaticamente:
169.254.0.0 /16- IP Address
- Subnet Mask
- Gateway
- DNS
169.254.__.__
255.255. 0 . 0
L'obiettivo è consentire ai dispositivi di comunicare su
una LAN.
Link Local non ha a che fare con:
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Automatic IP Addressing: DHCP
192.168.0.101 192.168.0.51? 192.168.0.103
Se DHCP ha questo aspetto...ROUTER & DHCP
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Automatic IP Addressing: DHCP
169.254.51.137 192.168.0.51? 169.254.14.81
Link Local si presenterebbe così...
ARP richiesta "chi ha" (Broadcast): 169.254.51.137
"Qualcuno sta usando 169.254.51.137?"
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Automatic IP Addressing: DHCP
169.254.51.137 192.168.0.51? 169.254.14.81
Risposta ARP (Unicast):
"Sì, sto usando 169.254.51.137."
Link Local si presenterebbe così...
![Page 75: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/75.jpg)
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Automatic IP Addressing: DHCP
169.254.51.137 192.168.0.51? 169.254.14.81
ARP Richiesta "chi ha" (Broadcast): 169.254.80.12
"OK, qualcuno sta usando 169.254.80.12?"
Link Local si presenterebbe così...
![Page 76: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/76.jpg)
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Automatic IP Addressing: DHCP
169.254.51.137 192.168.0.51169.254.80.12 169.254.14.81
"Nessuno ha risposto, quindi userò questo indirizzo.
Link Local si presenterebbe così...
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TCP vs UDP
![Page 78: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/78.jpg)
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Argomenti di networking per oggi
Porte di rete
Informazioni su Master Clock
Modelli di rete a layer, ARP
Segmentazione del dominio broadcast
Gestione delle connessioni simultanee
Protocollo PTP (Precision Time Protocol)
Associando IP & MAC Addresses, Il modello OSI
Gestione del "Rumore" in una rete
Configurazioni principali IP
DNS
DHCP/Link Local
TCP/UDP
Unicast, Multicast e Broadcast
Qos
Implicazioni di VLAN e Trunk
Metodi di trasmissione
Metodi di distribuzione
Qualità del servizio - Priorità del traffico
VLAN, Trunk, VLAN con tag, STP, GAL
Indirizzi IP, Maschera di sub-rete, Intervallo LAN
Servizio di nomi di dominio
Configurazioni automatiche d´indirizzi
EN
HA
NC
EN
EW
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TCP vs UDP Traffic
Il traffico TCP è come la posta "raccomandata con ricevuta
di ritorno" dove Il mittente riceve la notifica che il
messaggio è stato ricevuto.
- Il traffico UDP è come la posta "ordinaria" una volta che
mettiamo la busta nella cassetta postale e ci fidiamo che
venga consegnata.
Questo significa che UDP è meno affidabile?
No, è uno strumento diverso per un lavoro diverso.
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TCP vs UDP Traffic
Il traffico TCP è come la posta raccomandata.
Il mittente riceve la notifica che il messaggio è stato ricevuto.
TCP è adatto per il traffico Internet in cui:
- Sia probabile che le comunicazioni vengano interrotte (Internet)
- La mancanza di un pacchetto invalida i dati (download ftp)
- La consegna immediata è una comodità, non una necessità.
Problemi con TCP per i supporti:
- Se il pacchetto è stato scartato, qual è il tempo di attesa per una conferma?
- Crea utilizzo aggiuntivo delle risorse della rete, aumentando la probabilità di un
problema.
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TCP vs UDP Traffic
UDP è appropriato per il traffico Internet in cui:
- Le comunicazioni non possono essere interrotte (LAN),
- La mancanza di un pacchetto in sequenze può essere superata (correzione
degli errori) o
- La consegna tempestiva o il basso sovraccarico sono fondamentali
I dispositivi stessi possono monitorare le prestazioni della rete:
- Gli switch ed endpoint gestiti possono registrare pacchetti non gestiti o
mancanti
Il traffico UDP è come la posta "ordinaria". Si inserisce la busta
nella cassetta postale e ci si fida che venga consegnata
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Verifica della consegna UDP in Dante Controller
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Verifica della consegna UDP di Cisco SG
Dropped Packets Other Errors
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Use Case Scenario:
Music Festival: 48 bande in 3 giorni…
0 problemi di rete.
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Main PA
Nexo STM Mains
Yamaha NXAMP Amps
Monitor PA
Nexo 45N12 Wedges
Nexo PS15/LS18 Side Fills
Yamaha NXAMP Amps
Stageboxes
64 Inputs for Band A
64 Inputs for Band BMonitor Position
(2) Consoles - Band A & Band B
FoH Position
(2) Consoles - Band A & Band B
Production Desk
Yamaha CL1 Mixing Consoles
MC Mic, BGM, Quick Routing
Use Case Scenario:
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Unicast, Multicast and Broadcast
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Argomenti di networking per oggi
Porte di rete
Informazioni su Master Clock
Modelli di rete a layer, ARP
Segmentazione del dominio broadcast
Gestione delle connessioni simultanee
Protocollo PTP (Precision Time Protocol)
Associando IP & MAC Addresses, Il modello OSI
Gestione del "Rumore" in una rete
Configurazioni principali IP
DNS
DHCP/Link Local
TCP/UDP
Unicast, Multicast e Broadcast
Qos
Implicazioni di VLAN e Trunk
Metodi di trasmissione
Metodi di distribuzione
Qualità del servizio - Priorità del traffico
VLAN, Trunk, VLAN con tag, STP, GAL
Indirizzi IP, Maschera di sub-rete, Intervallo LAN
Servizio di nomi di dominio
Configurazioni automatiche d´indirizzi
EN
HA
NC
EN
EW
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Unicast è come una chiamata telefonicaTransmissione Uno-a-Uno, può attraversare un Router
Distribution: Unicast, Multicast and Broadcast
RxRxRx
Rx
Tx
ROUTERSWITCH SWITCH
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Unicast è come una chiamata telefonicaUnicast può onerare nelle Trunk Lines
Distribution: Unicast, Multicast and Broadcast
RxRxRx
Rx
Tx
ROUTER
SWITCH
SWITCH
SWITCH
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Distribution: Unicast, Multicast and Broadcast
Rx
Tx
ROUTER
SWITCH
SWITCH
SWITCH
Trasmissione è come posta SPAM
Uno-a-tutti (broadcast) - Non attraversa il router
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Distribution: Unicast, Multicast and Broadcast
RxRx
ROUTER
SWITCH
SWITCH
SWITCH
Multicast w/ IGMP è come un abbonamentoUno-a-molti, non attraversa il router (per impostazione predefinita)
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Distribution: Unicast, Multicast and Broadcast
RxRx
ROUTER
SWITCH
SWITCH
SWITCH
Tx
RxRx
Multicast w/ IGMP è come un abbonamentoUno-a-molti, non attraversa il router (per impostazione predefinita)
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Distribution: Unicast, Multicast and Broadcast
Rx
Tx
ROUTER
SWITCH
SWITCH
SWITCH
Multicast w/ IGMP è come un abbonamentoUno-a-molti, non attraversa il router (per impostazione predefinita)
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Distribution: Unicast, Multicast and Broadcast
IGMP Snooping è il bit che gestisce le sottoscrizioni:
- Senza IGMP Snooping, Multicast si comporta come Broadcast
- Tutti gli interruttori avrebbero IGMP Snooping Impegnato
- Ci dovrebbe essere un solo IGMP Querier sulla rete
IGMP Snooping v2 o v3:
- Dante funzionerà alla v2 o alla v3.
- Alcuni altri sistemi sono ancora in fase di test con compatibilità v3.
La sottoscrizione viene effettuata a un indirizzo IP multicast
Intervallo: 224.0.0.0 /4 (converte in 224.0.0.0 attraverso 239.255.255.255)
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Distribution: Unicast, Multicast and Broadcast
RxRx
ROUTER
SWITCH
SWITCH
SWITCH
Multicast con IGMP SnoopingIGMP Snooping invia dati di flusso solo ai sottoscritti
Tx
RxRx
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Distribution: Unicast, Multicast and Broadcast
Tx
ROUTER
SWITCH
SWITCH
SWITCH
Multicast senza IGMP SnoopingSenza un elenco di sottoscritti, i dati vengono inviati a tutte le porte (come Broadcast)
RxRx RxRx
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Distribution: Unicast, Multicast and Broadcast
Cosa succede se più dispositivi trasmettono allo stesso indirizzo IP?
I dispositivi che si iscrivono a tale flusso riceveranno tutti i contributi.
Questo può essere utilizzato per il bene - come con mDNS "Discovery"
Possiamo mescolare le marche di interruttori con IGMP Snooping?
Puoi, ma non dovresti. Attaccare con un marchio sarà più probabile
hanno gli stessi valori predefiniti per una migliore compatibilità,
potrebbe
auto-negoziare una query IGMP Snooping e offrire coerente
schermate di gestione per la configurazione.
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Distribution: Unicast, Multicast and Broadcast
Cosa succede se una rete prevede switch con e senza IGMP?
Gli switch con IGMP Snooping controlleranno la
distribuzione multicast.
Gli switch senza IGMP Snooping si inonderanno con il
multicast che entra.
NO
IGMPIGMP
NO
IGMP
NO
IGMPIGMP
NO
IGMP
Tx Step 1 – Stream is created
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Distribution: Unicast, Multicast and Broadcast
Tx Step 2 – Stream is Requested, Scenario 1
Rx
NO
IGMPIGMP
NO
IGMP
NO
IGMPIGMP
NO
IGMP
Cosa succede se una rete prevede switch con e senza IGMP?
Gli switch con IGMP Snooping controlleranno la
distribuzione multicast.
Gli switch senza IGMP Snooping si inonderanno con il
multicast che entra.
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Distribution: Unicast, Multicast and Broadcast
Tx Step 2 – Stream is Requested, Scenario 2
Rx
NO
IGMPIGMP
NO
IGMP
NO
IGMPIGMP
NO
IGMP
Cosa succede se una rete prevede switch con e senza IGMP?
Gli switch con IGMP Snooping controlleranno la
distribuzione multicast.
Gli switch senza IGMP Snooping si inonderanno con il
multicast che entra.
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Distribution: Unicast, Multicast and Broadcast
Tx Step 2 – Stream is Requested, Scenario 3
Rx
NO
IGMPIGMP
NO
IGMP
NO
IGMPIGMP
NO
IGMP
Cosa succede se una rete prevede switch con e senza IGMP?
Gli switch con IGMP Snooping controlleranno la
distribuzione multicast.
Gli switch senza IGMP Snooping si inonderanno con il
multicast che entra.
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Distribution: Unicast, Multicast and Broadcast
Il multicast attraversa un router?
Per impostazione predefinita, no.
Quanto multicast può gestire una rete?
Osservare il carico della CPU sullo switch. Ma in generale,
può muover molto...
Cosa succede se una rete prevede switch con e senza
IGMP?
Gli switch con IGMP Snooping controlleranno la
distribuzione multicast.
Gli switch senza IGMP Snooping si inonderanno con il
multicast che entra.
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Use Case Scenario
Nel 2012, la produzione audio di un noto talk
show notturno è stata fatta al 100% Dante.
Harvey, S. (2014, 01 01). The Future of TV Workflow: Dante Networking for “The Arsenio Hall Show”.
https://www.mixonline.com/sfp/future-tv-workflow-dante-networking-arsenio-hall-show-369327
Circa 150 canali di fase sono stati distribuiti da
multicast, raggiungendo fino a 9 destinazioni
chiave.
Il carico della CPU dello switch Cisco SG300 era
di circa il 20%
Multicast in uso
ON AIR
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QoS (Quality of Service)
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QoS: Quality of Service
Se molti pacchetti di dati devono
uscire per una stessa porta, si
crea una fila.
QoS ci permette di dare priorità
ad alcuni pacchetti, simili alla
priorità d’imbarco delle
compagnie aeree
Priority
HighPriority
MediumPriority
LowPriority
“Best Effort”
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QoS: Quality of Service
Priority
HighPriority
MediumPriority
LowPriority
“Best Effort”- Dare priorità ad alcuni significa
togliere priorità ad altri.
Se molti pacchetti di dati devono
uscire per una stessa porta, si
crea una fila.
QoS ci permette di dare priorità
ad alcuni pacchetti, simili alla
priorità d’imbarco delle
compagnie aeree
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Best Effort Low Medium High
QoS: Quality of Service
ClockAudio56 (CS7)46 (EF)
Other Control8 (CS1)
Dante Uses 3 Priority Queues
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QoS: Quality of Service
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QoS: Types of QoS
● QoS (e.g. Diffserv) è basata sulle ClassSpecificare ciò che è importante
Il tempismo è relativo
Facile da implementare – è possibile mescolare gli switch con e senza QoS
● Alternativa sarebbe Reservation Based (Prenotazioni)Specificare quanti e in quale frequenza: quindi decidere se è possibile
Il tempismo è assoluto
Complesso da implementare – le prenotazione devono essere presenti per tutto oppure il
collegamento non succede.
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QoS: Types of QoS
Quando si utilizza QoS, utilizzare "Strict Priority"
La priorità rigorosa serve sempre la classe più importante
Il Round Robin ponderato serve le code in base alle medie ponderate
Shaped Round Robin serve dall'analisi statistica
QoS può aiutare quando...
In una rete convergente, proteggendo dai picchi di larghezza di banda di
applicazioni con priorità inferiore.
I collegamenti si stanno avvicinando al 70% di saturazione o più.
Utilizzando collegamenti più lenti (100Mbit).
- Né è magia – non generano larghezza di banda aggiuntiva
Il miglior QoS è più larghezza di banda
Assegnare priorità ad alcuni traffic significa de-de-prioritizzare gli altri
"Se tutti sono importanti, allora nessuno lo è."
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2008 -
Use Case Scenario
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System Example
Use Case Scenario
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2014 -
Use Case Scenario
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Use Case Scenario
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VLANs and Trunk Implications
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Argomenti di networking per oggi
Porte di rete
Informazioni su Master Clock
Modelli di rete a layer, ARP
Segmentazione del dominio broadcast
Gestione delle connessioni simultanee
Protocollo PTP (Precision Time Protocol)
Associando IP & MAC Addresses, Il modello OSI
Gestione del "Rumore" in una rete
Configurazioni principali IP
DNS
DHCP/Link Local
TCP/UDP
Unicast, Multicast e Broadcast
Qos
Implicazioni di VLAN e Trunk
Metodi di trasmissione
Metodi di distribuzione
Qualità del servizio - Priorità del traffico
VLAN, Trunk, VLAN con tag, STP, GAL
Indirizzi IP, Maschera di sub-rete, Intervallo LAN
Servizio di nomi di dominio
Configurazioni automatiche d´indirizzi
EN
HA
NC
EN
EW
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What is a LAN?
Una LAN è un gruppo di dispositivi in grado di comunicare.
ROUTER
SWITCHSWITCH
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What is a LAN?
What is a LAN?
Una LAN è un gruppo di dispositivi in grado di comunicare.
ROUTER
SWITCH SWITCH
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VLAN 1 VLAN 2
Non è necessario offrire lo stesso numero di porte per
VLAN: è possibile assegnare la quantità necessaria.
What is a VLAN?
Una VLAN simula reti isolate in un unico switch
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What is a LAN?
What is a LAN?
ROUTER
SWITCH SWITCH
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40Gbit Backplane
What is “Non-Blocking Architecture”?
"Architettura non bloccante" significa che il switch in se
non è il fattore limitante della larghezza di banda.
In questo caso, la porta o il cavo sarebbero.
20 ports x 1 Gbit x 2 Directions 40 Gbit Backplane=
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40Gbit Backplane
What is “Non-Blocking Architecture”?
26 ports x 1 Gbit x 2 Directions 52 Gbit=
40Gbit Backplane
2 ports x 10 Gbit x 2 Directions 40 Gbit=
92 Gbit backplane
2x 10Gbit Ports26x 1Gbit PortsCisco SG350X-24P
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What is a Trunk?
Una linea trunk è un collegamento tra interruttori
20Gbit by 20Gbit Backplane
20Gbit by 20Gbit Backplane
1Gbit by 1Gbit Link
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What is a Trunk?
20Gbit by 20Gbit Backplane
20Gbit by 20Gbit Backplane
Una linea trunk è un collegamento tra interruttori
Però, un secondo collegamento trunk crea un problema con STP.
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Spanning Tree Protocol (STP)
STP impedisce "Loop" nella rete
DHCP Request
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Spanning Tree Protocol (STP)
STP impedisce "Loop" nella rete
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Spanning Tree Protocol (STP)
STP impedisce "Loop" nella rete
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Spanning Tree Protocol (STP)
STP impedisce "Loop" nella rete
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Spanning Tree Protocol (STP)
Questo Loop infinito è chiamato "Broadcast Storm"
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Spanning Tree Protocol (STP)
STP crea un "Dormant Link"
Dormant Link
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Spanning Tree Protocol (STP)
STP può essere una forma di ridondanza
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Spanning Tree Protocol (STP)
STP può essere una forma di ridondanza
Questo processo può
richiedere 60 secondi.
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Link Aggregation Group (LAG)
Il gruppo di aggregazione dei collegamenti risolve il
problema del Loop
LAG
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VLAN 1 VLAN 2
VLAN 1 VLAN 2
Create a Trunk with Tagged VLANs
Multiple VLANs on a Trunk
1+2
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VLAN 1 VLAN 2
VLAN 1 VLAN 2
Multiple VLANs on a Trunk
1+2
2
2
1
Creare un trunk con VLAN tags
I pacchetti sono "tagati" in modo che si sa il
destinatario dove inviarli.
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VLAN 1 VLAN 2
VLAN 1 VLAN 2
Multiple VLANs on a Trunk
1+2
Creare un trunk con VLAN con tag
I tag vengono rimossi prima di inviarli ai dispositivi in
modo che il processo sia trasparente.
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2
VLAN 1 VLAN 2
VLAN 1 VLAN 2
La VLAN "Senza tag" in un trunk
Multiple VLANs on a Trunk
1+2
Creare una VLAN senza tag, in modo da
poter collegare un PC di manutenzione.
2
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139
VLAN 1 VLAN 2
VLAN 1 VLAN 2
Multiple VLANs on a Trunk
1+2
Combinare le idee – un LAG di Trunk Lines
Consente una maggiore larghezza di
banda per il collegamento.LAG
![Page 139: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/139.jpg)
Network Ports: https://www.audinate.com:443
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141
Argomenti di networking per oggi
Porte di rete
Informazioni su Master Clock
Modelli di rete a layer, ARP
Segmentazione del dominio broadcast
Gestione delle connessioni simultanee
Protocollo PTP (Precision Time Protocol)
Associando IP & MAC Addresses, Il modello OSI
Gestione del "Rumore" in una rete
Configurazioni principali IP
DNS
DHCP/Link Local
TCP/UDP
Unicast, Multicast e Broadcast
Qos
Implicazioni di VLAN e Trunk
Metodi di trasmissione
Metodi di distribuzione
Qualità del servizio - Priorità del traffico
VLAN, Trunk, VLAN con tag, STP, GAL
Indirizzi IP, Maschera di sub-rete, Intervallo LAN
Servizio di nomi di dominio
Configurazioni automatiche d´indirizzi
EN
HA
NC
EN
EW
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142
HOW DO WE MANAGE SO MANY CONNECTIONS AT ONCE?
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143
APPLICATION ADDRESSES
L'utente ha richiesto:
http://www.youtube.com/
Cercherò su internet
Indirizzo IP su DNS.
(Servizio nome dominio)
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144
APPLICATION ADDRESSES
Salve DNS
(8.8.8.8:53),
Conosci il
Indirizzo IP per:
www.youtube.com?
8.8.8.8
DNS
Sì. Risolvo
www.youtube.com
all’indirizzo
172.217.23.14
Public
Internet
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145
APPLICATION ADDRESSES
Meglio scriverlo nella
mia rubrica in modo
da non dover
chiedere di nuovo.
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146
APPLICATION ADDRESSES
172.217.23.14
Youtube
Ciao 172.217.23.14:443,
puoi richiamarmi al
numero
192.168.1.23:53618?
Public
Internet
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147
APPLICATION ADDRESSES
172.217.23.14
Youtube
Ciao
192.168.1.23:53618
Cosa posso fare per
te?
Video comici
di gatti per
favore!
Public
Internet
![Page 147: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/147.jpg)
148
APPLICATION ADDRESSES
172.217.23.14
YoutubePublic
Internet
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149
APPLICATION ADDRESSES
• Lo stesso processo si ripete per ogni applicazione
• Ogni applicazione ha un proprio indirizzo interno (porta)
Application Local Port Remote IP Remote Port
Youtube TCP 53618 172.217.23.14 TCP 443
Facebook TCP 53653 31.13.92.36 TCP 443
Outlook TCP 67123 105.40.225.204 TCP 389
Spotify TCP 57453 194.132.198.198 TCP 443
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150
APPLICATION ADDRESSES
Application Local Port Remote IP Remote PortApplication Local Port Remote IP Remote Port
PTP UDP 53618 224.0.1.129 UDP 319
Audio Flow UDP 14340 192.168.1.56 UDP 14390
Audio Flow UDP 14350 192.168.1.60 UDP 14367
Gain control UDP 50135 192.168.1.56 UDP 50231
• Lo stesso processo si ripete per ogni applicazione
• Ogni applicazione ha un proprio indirizzo interno (porta)
• Anche le reti Dante lo fanno.
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Dante Discovery
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152
ROUTER
Dante Discovery
Dante utilizza mDNS per individuare i dispositivi sulla rete.
La "m" sta per multicast.
Indirizzo/porta sottoscrizione: 224.0.0.251:5353
SWITCH
192.168.0.101 /24
192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.81 /24
192.168.0.92 /24
192.168.0.82 /24
Subscribe to
224.0.0.251:5353
DSP & Amp
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153
Dante Discovery
Dante utilizza mDNS per individuare i dispositivi sulla rete.
La "m" sta per multicast.
Indirizzo/porta sottoscrizione: 224.0.0.251:5353
SWITCH
192.168.0.101 /24
192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.81 /24
192.168.0.92 /24
192.168.0.82 /24
mDNS discovery populates core device info.
ROUTER
DSP & Amp
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154
Dante Discovery
Dante utilizza mDNS per individuare i dispositivi sulla rete.
La "m" sta per multicast.
Indirizzo/porta sottoscrizione: 224.0.0.251:5353
![Page 154: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/154.jpg)
155
Dante Discovery
SWITCH
192.168.0.101 /24
192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.81 /24
192.168.0.92 /24
192.168.0.82 /24
ROUTER
Dante Controller uses unicast Dante API to learn more.
DSP & Amp
L'API Dante prende quindi il sopravvento, ottenendo maggiori dettagli.
Ulteriori query sono unicast.
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156
Dante Discovery
SWITCH
192.168.0.101 /24
192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.81 /24
192.168.0.92 /24
192.168.0.82 /24
ROUTER
Dante Controller uses unicast Dante API to learn more.
DSP & Amp
L'API Dante prende quindi il sopravvento, ottenendo maggiori dettagli.
Ulteriori query sono unicast.
![Page 156: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/156.jpg)
157
Dante Discovery
L'API Dante prende quindi il sopravvento, ottenendo maggiori dettagli.
Ulteriori query sono unicast.
![Page 157: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/157.jpg)
158
Dante Discovery - Troubleshooting
Cosa succede se alcuni dispositivi sono erroneamente fuori dalla
gamma LAN?
SWITCH
192.168.0.101 /24
192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
10.0.15.81 /24
192.168.0.92 /24
10.0.15.82 /24
ROUTER
DSP & Amp
![Page 158: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/158.jpg)
159Audinate | Bringing the IT revolution to AV
Dante Discovery - Troubleshooting
SWITCH
192.168.0.101 /24
192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.92 /24
10.0.15.81 /24
10.0.15.82 /24
ROUTER
Subscribe to
224.0.0.251:5353
DSP & Amp
Cosa succede se alcuni dispositivi sono erroneamente fuori dalla
gamma LAN?
![Page 159: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/159.jpg)
160
Dante Discovery - Troubleshooting
SWITCH
192.168.0.101 /24
192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.92 /24
10.0.15.81 /24
10.0.15.82 /24
mDNS discovery still populates core device info – multicast is not dependent on LAN range.
ROUTER
DSP & Amp
Cosa succede se alcuni dispositivi sono erroneamente fuori dalla
gamma LAN?
![Page 160: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/160.jpg)
161
Dante Discovery - Troubleshooting
SWITCH
192.168.0.101 /24
192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.92 /24
10.0.15.81 /24
10.0.15.82 /24
ROUTER
The unicast Dante API will gather information about devices in the proper LAN range.
DSP & Amp
Cosa succede se alcuni dispositivi sono erroneamente fuori dalla
gamma LAN?
![Page 161: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/161.jpg)
162
Dante Discovery - Troubleshooting
SWITCH
192.168.0.101 /24
192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.92 /24
10.0.15.81 /24
10.0.15.82 /24
ROUTER
But the unicast transmission will see addresses outside our LAN and go to the router.
DSP & Amp
Cosa succede se alcuni dispositivi sono erroneamente fuori dalla
gamma LAN?
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163
Dante Discovery - Troubleshooting
Cosa succede se alcuni dispositivi sono erroneamente fuori dalla
gamma LAN?
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164
ROUTER
Dante Discovery - Troubleshooting
SWITCH
10.0.15.101 /24
192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.81 /24
192.168.0.92 /24
192.168.0.82 /24
Subscribe to
224.0.0.251:5353
DSP & Amp
Cosa succede se Dante Controller si trova erroneamente fuori dalla
gamma LAN?
![Page 164: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/164.jpg)
165
Dante Discovery - Troubleshooting
SWITCH 192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.92 /24
mDNS discovery still populates core device info – multicast is not dependent on LAN range.
ROUTER
DSP & Amp
10.0.15.101 /24
192.168.0.81 /24
192.168.0.82 /24
Cosa succede se Dante Controller si trova erroneamente fuori dalla
gamma LAN?
![Page 165: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/165.jpg)
166
Dante Discovery - Troubleshooting
SWITCH 192.168.0.93 /24
192.168.0.91 /24Beam Forming Ceiling Mic
Zoom Conferencing
Dante Controller
192.168.0.92 /24
ROUTER
But the unicast Dante API will think these addresses are on another LAN, not inside our network.
DSP & Amp
192.168.0.81 /24
192.168.0.82 /24
10.0.15.101 /24
Cosa succede se Dante Controller si trova erroneamente fuori dalla
gamma LAN?
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167
Dante Discovery - Troubleshooting
Cosa succede se Dante Controller si trova erroneamente fuori dalla
gamma LAN?
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168
Dante Discovery – Troubleshooting
La scoperta parziale può essere interrotta da semplici problemi di gamma
LAN:
- Dante Controller potrebbe essere in grado di indicare la gamma LAN in cui si
trova il dispositivo.
- Se tutto è vuoto, verificare che il computer sia compreso nell'intervallo LAN.
- Controllare anche se Dante Controller utilizza l'interfaccia di rete (NIC) corretta
![Page 168: Audinate Presentation€¦ · Title: Audinate Presentation Author: kieran.walsh@audinate.com Created Date: 4/20/2020 5:00:23 PM](https://reader036.vdocuments.site/reader036/viewer/2022071118/600981c2716d9111ed2a9ffc/html5/thumbnails/168.jpg)
Advanced Clocking, Layer 2
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170
Argomenti di networking per oggi
Porte di rete
Informazioni su Master Clock
Modelli di rete a layer, ARP
Segmentazione del dominio broadcast
Gestione delle connessioni simultanee
Protocollo PTP (Precision Time Protocol)
Associando IP & MAC Addresses, Il modello OSI
Gestione del "Rumore" in una rete
Configurazioni principali IP
DNS
DHCP/Link Local
TCP/UDP
Unicast, Multicast e Broadcast
Qos
Implicazioni di VLAN e Trunk
Metodi di trasmissione
Metodi di distribuzione
Qualità del servizio - Priorità del traffico
VLAN, Trunk, VLAN con tag, STP, GAL
Indirizzi IP, Maschera di sub-rete, Intervallo LAN
Servizio di nomi di dominio
Configurazioni automatiche d´indirizzi
EN
HA
NC
EN
EW
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171
Basics of Sample Rate & Clock
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172
100111010011010011100011
What do we call this measurement?
Basics of Sample Rate & Clock
“Sample” or a “Digital Word”
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173
Why Do We Cover Clocking?
Dante significa che l'intero sistema è
connesso digitalmente.
Questa è spesso la prima volta che le persone
lavorano con un sistema connesso digitalmente.
Problema: la mancanza di conoscenza causano
alle persone di incolpare Clocking.
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174
Capture
#1
Digital Audio Chain
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175
Capture
#2 #1
Transmit
Digital Audio Chain
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176
Capture
#3 #2 #1
Transmit Process
Digital Audio Chain
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Capture
#4 #3 #2 #1
Transmit Process Transmit
48KHz Internal
Digital Audio Chain
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Capture
#4 #3 #2 #1
Transmit Process Transmit
48,000.1 Hz
Digital Audio Chain
Clock 1
Clock 2
48,000.3 Hz
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Clock: In Sync vs In Phase
Clock 1
Clock 2
OK: In Sync, Out of Phase
Clock 1
Clock 2
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Clock: In Sync vs In Phase
Clock 1
Clock 2
Clock 1
Clock 2
OK: In Sync, Out of Phase
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Clock: In Sync vs In Phase
Clock 1
Clock 2
Problem: No Sync – Buffer Overrun/Underrun
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Clock: In Sync vs In Phase
Clock 1
Clock 2
Problem: No Sync – Buffer Overrun/Underrun
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Word Clock Variance (Propagation Delay)
Tim
eClock: Propagation Delay
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Word Clock Variance (Propagation Delay)
Tim
eClock: Propagation Delay
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Word Clock Variance (Propagation Delay)
Tim
eClock: Propagation Delay
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Chase clock at digital input.
Clock: Buffered Distribution
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Clock: Central Clock
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Why Do We Cover Digital Audio Basics?
Clock: Cyclical Reference vs Positional Pointer
Word Clock è simile al time-code SMPTE?
SMPTE time code
(quadrante dell'orologio)
Word Clock
(pendolo)
Word Clock e time-code SMPTE devono
essere "associati", il che significa che sono
correlati e allineati, ma non descrivono la
stessa cosa.
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Dante Word Clock
Dante semplifica la configurazione.
Non solo in sincronia, ma in fase.
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• Automated Election Criteria:
Preferred Master
Chasing External Clock
Best Master Clock Algorithm Automatic Process
User Intervention
Dante Word Clock Master Election
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Dante Word Clock Master Election
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• Automated Election Criteria:
Preferred Master
Chasing External Clock
Best Master Clock Algorithm Automatic Process
User Intervention
Dante Word Clock Master Election
- Sincronizzare "Time of Day" con la precisione di sub-
microsecondi.
- Derivare la frequenza di campionamento audio o la frequenza
fotogrammi video desiderata.
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Derrive Clocks from a Higher Resolution PTP Sync
Se abbiamo un ¨pendolo¨ con una risoluzione più alta come PTP...
Possiamo derivare clocking di frequenza inferiore a esso.
192kHz, 96kHz, 48kHz, 44.1kHz , 60fps, 50fps, 30fps, 25fps, 24fps, etc.
PTP resolution far exceeds sample rates or frame rates – the chart above simplifies the drawing so it’ll fit in the resolution of the screen.
Quindi, con PTP, abbiamo un Master Clock per tutta la rete - non uno per
frequenza di campionamento, frequenza fotogrammi, ecc.
Tutto deriva automaticamente da questo comune orologio PTP.
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Chase clock at digital input.
Clock: Buffered Distribution
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Clock: Central Clock
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Word Clock In Word Clock In
Word Clock Out Word Clock Out
Clock: Testing Accuracy – Central Clock
Test results courtesy of Yamaha
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The “Control” TestWord Clock In Word Clock In
Word Clock Out Word Clock Out
Clock: Testing Accuracy – Central Clock
Test results courtesy of Yamaha
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Clock: Testing Accuracy – AES3
AES/EBU (AES3)
Test results courtesy of Yamaha
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Clock: Testing Accuracy – AES3
Test results courtesy of Yamaha
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Clock: Testing Accuracy – CobraNet
CobraNet
Test results courtesy of Yamaha
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Clock: Testing Accuracy – CobraNet
Test results courtesy of Yamaha
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Clock: Testing Accuracy – CobraNet
Test results courtesy of Yamaha
CobraNet
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Clock: Testing Accuracy – CobraNet
One Switch Two Switches
Test results courtesy of Yamaha
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Clock: Testing Accuracy – Dante
Dante
Test results courtesy of Yamaha
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The “Control” Test
Clock: Testing Accuracy – Dante
Test results courtesy of Yamaha
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Clock: Testing Accuracy – Dante
Test results courtesy of Yamaha
Dante
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The “Control” Test
Clock: Testing Accuracy – Dante
One Switch Two Switches
Test results courtesy of Yamaha
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PTP: Synchronizing Time
• L'idea di distribuire il tempo su una rete è
iniziata con British Railways
• I treni avevano un programma – arrivi / tempi di partenza.
• Stazioni sul percorso necessari per concordare
su che ora era, in modo che i treni sarebbero
"in tempo".
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PTP: Synchronizing Time
London
Imposta
l'orologio
sul Big
Ben
Edinburgh
Metti
l'orologio
sul treno
Vai a
Impostare
l’orologio della
stazione di
Edimburgo
d’accordo
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PTP: Sync (Time) and Follow-ups (Speed)
Sync (Set Time) - Multicast
Ref 1435:
2019 June 12
09:00:01.000325364
Follow-Up (Set Speed) - Multicast
“Ref 1435:
2019 June 12
09:00:01.000326789”
Il follower imposta l'orologio
Follower Regola la velocità:
Confronta il tempo trascorso
dall'orologio master e il suo
locale, quindi rallenta o
velocizza fino alla
corrispondenza.
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PTP: Sync (Time) and Follow-ups (Speed)
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PTP: Sync (Time) and Follow-ups (Speed)
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PTP: Synchronizing Time
L'orologio sul treno ha continuato a mantenere il tempo in transito.
I pacchetti di rete non riescono…
Londo
n
Edinburgh
E la propagazione del delay?
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PTP: Sync and Follow-ups are Multicast
Delay Req 1066:
09:00:02.00567283
Delay Response - Multicast
Delay Response 1066:
Received: 09:00:02.001325745
Responded: 09:00:02.008564367
Delay Request – Multicast
I follower inviano richieste di delay
al Clock Master
Clock follower conosce Tx & Rx
timestamp di richiesta e risposta,
media matematicamente per
individuare i tempi di
attraversamento della rete.
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The “Control” TestWord Clock In Word Clock In
Word Clock Out Word Clock Out
Clock: Testing Accuracy – Dante
One Switch Two Switches
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Use Case Scenario
Nel 2015, un altro noto talk show notturno è stato
fatto 100% Dante.
Circa 225 canali di fase sono stati distribuiti
multicast, raggiungendo fino a 7 destinazioni
chiave.
Il carico della CPU dello switch Cisco SG300 era
di circa il 30%
Mai più distribuzione del BNC Clock
ON AIR
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FOH
Monitors
House Band Guest Band
Studio
Sound FX
Remote Feed
Monitors
FOH
160 Mic Ins (Studio)
64 Mic/Line Ins (Remote)
32 Guest Band “Tracks”
64 Monitor Mixes (32 stereo)
32 Stems
16 Communication Lines
256 Multicast Streams
112 Unicast Streams
500-1000 Patches
Use Case Scenario
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Use Case Scenario
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ARP – Address Resolution Protocol
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Argomenti di networking per oggi
Porte di rete
Informazioni su Master Clock
Modelli di rete a layer, ARP
Segmentazione del dominio broadcast
Gestione delle connessioni simultanee
Protocollo PTP (Precision Time Protocol)
Associando IP & MAC Addresses, Il modello OSI
Gestione del "Rumore" in una rete
Configurazioni principali IP
DNS
DHCP/Link Local
TCP/UDP
Unicast, Multicast e Broadcast
Qos
Implicazioni di VLAN e Trunk
Metodi di trasmissione
Metodi di distribuzione
Qualità del servizio - Priorità del traffico
VLAN, Trunk, VLAN con tag, STP, GAL
Indirizzi IP, Maschera di sub-rete, Intervallo LAN
Servizio di nomi di dominio
Configurazioni automatiche d´indirizzi
EN
HA
NC
EN
EW
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Switching Happens by MAC Address
192.168.0.101
192.168.0.52 SWITCH
Ricordate quando abbiamo detto che i switch guardano IP?
È ora di guardare un Layer più profondo...
Domain Name
IP Address
MAC Address
DNS
ARP
AA.BB.CC.DD.EE.01
AA.BB.CC.DD.EE.02
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ARP Correlates IP Addresses to MAC Addresses
Port MAC
1
2
3
IP MAC
IP MAC
IP MAC 192.168.0.103AA:BB:CC:DD:EE:03
192.168.0.102AA:BB:CC:DD:EE:02
192.168.0.101AA:BB:CC:DD:EE:01
Ho bisogno di trovare
l'indirizzo MAC per
192.168.0.103.
IP MAC
.103
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ARP Correlates IP Addresses to MAC Addresses
192.168.0.103AA:BB:CC:DD:EE:03
Port MAC
1 AA:BB:CC:DD:EE:01
2
3
IP MAC
.103
IP MAC
.101 AA:BB:CC:DD:EE:01
IP MAC
.101 AA:BB:CC:DD:EE:01
192.168.0.102AA:BB:CC:DD:EE:02
192.168.0.101AA:BB:CC:DD:EE:01
Non per me...
Sono io!
Broadcast
192.168.0.103AA:BB:CC:DD:EE:03
The ARP Process
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ARP Correlates IP Addresses to MAC Addresses
192.168.0.103AA:BB:CC:DD:EE:03
Port MAC
1 AA:BB:CC:DD:EE:01
2
3 AA:BB:CC:DD:EE:03
IP MAC
.103 AA:BB:CC:DD:EE:03
IP MAC
.101 AA:BB:CC:DD:EE:01
IP MAC
.101 AA:BB:CC:DD:EE:01
192.168.0.102AA:BB:CC:DD:EE:02
192.168.0.101AA:BB:CC:DD:EE:01
Rispondo..
.
Capito!
Unicast
The ARP Process
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ARP Review:
ARP trova l'indirizzo MAC per un indirizzo IP richiesto con
l’intuito di "incollare" i due insieme.
Switch raccolgono passivamente informazioni dalle
richieste ARP mentre passano attraverso la rete.
I messaggi ARP fanno parte del protocolo "Link Local"
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Layered Network Models & Encapsulation
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Argomenti di networking per oggi
Porte di rete
Informazioni su Master Clock
Modelli di rete a layer, ARP
Segmentazione del dominio broadcast
Gestione delle connessioni simultanee
Protocollo PTP (Precision Time Protocol)
Associando IP & MAC Addresses, Il modello OSI
Gestione del "Rumore" in una rete
Configurazioni principali IP
DNS
DHCP/Link Local
TCP/UDP
Unicast, Multicast e Broadcast
Qos
Implicazioni di VLAN e Trunk
Metodi di trasmissione
Metodi di distribuzione
Qualità del servizio - Priorità del traffico
VLAN, Trunk, VLAN con tag, STP, GAL
Indirizzi IP, Maschera di sub-rete, Intervallo LAN
Servizio di nomi di dominio
Configurazioni automatiche d´indirizzi
EN
HA
NC
EN
EW
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LAYERED MODELS
Concettuale, non concreto.
I modelli concettuali tendono a durare più a lungo dei modelli
concreti.
Indipendente di hardware specifici, non sempre riflette quello
che succede nella vita reale.
Utile nella progettazione o nella risoluzione dei problemi
Un cavo scollegato è un problema "Layer 1".
Sto cercando un switch di rete "Layer 3".
Abilità non richiesta per creare una semplice rete Dante
Ma è sul test di certificazione Dante Livello 3.
Layered Models sono:OSI Model
5: Session
6: Presentation
7: Application
4: Transport
3: Network
2: Datalink
1: Physical
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LAYERED MODELS
5: Session
6: Presentation
7: Application
4: Transport
3: Network
2: Datalink
1: Physical
OSI Model
Questo va al servizio postale
(CAT6 o cavo in fibra)
}
}Con indirizzi da/verso...
(sia in MAC che in indirizzo IP)
Scrivo una lettera...
(dati)
Che è messo in una busta...
(datagramma)
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LAYERED MODELS
5: Session
6: Presentation
7: Application
4: Transport
3: Network
2: Datalink
1: Physical
OSI Model
viene messo in un datagramma...
da/verso indirizzi IP...
da/verso gli indirizzi MAC...
Dati per la rete} Some Data
Src
MAC
Dst
MAC
Src
IP
Dst
IP
Src
Port
Dst
Portprot Some Data
Src
IP
Dst
IPSrc
Portprot Some Data
Dst
Port
Src
Portprot Some Data
Dst
Port
Encapsulation
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LAYERED MODELS
5: Session
6: Presentation
7: Application
4: Transport
3: Network
2: Datalink
1: Physical
OSI Model
Dati per la rete}5: Session
6: Presentation
7: Application
4: Transport
3: Network
2: Datalink
1: Physical
ed è inviato elettricamente attraverso un
cavo...
viene messo in un datagramma...
da/verso indirizzi IP...
da/verso gli indirizzi MAC...
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LAYERED MODELS
5: Session
6: Presentation
7: Application
4: Transport
3: Network
2: Datalink
1: Physical
OSI Model
con tutti i dati confezionati in un
datagramma
che ha un IP
che proveniva da un indirizzo MAC
convertito dall'elettricità alla logica
e i dati vengono dati a un'applicazione
5: Session
6: Presentation
7: Application
4: Transport
3: Network
2: Datalink
1: Physical
{
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LAYERED MODELS
5: Session
6: Presentation
7: Application
4: Transport
3: Network
2: Datalink
1: Physical
OSI Model
Se sei il progettista di un'applicazione per computer,
probabilmente ti preoccupi dei livelli superiori del
modello.}
Se sei un ingegnere di rete, probabilmente ti preoccupi
di più dei livelli inferiori del modello.}
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LAYERED MODELS
5: Session
6: Presentation
7: Application
4: Transport
3: Network
2: Datalink
1: Physical
OSI Model
Possiamo fare a meno di dettagli di
alto livello.
Ci piace il dettaglio a livello inferiore.
Application
Transport
Internet Layer
Network Access
TCP/IP Model
}
{}
{Nel lavoro che faremo...
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LAYERED MODELS
5: Session
6: Presentation
7: Application
4: Transport
3: Network
2: Datalink
1: Physical
OSI Model
Application
Transport
Internet Layer
Network Access
TCP/IP Model
Nessuno dei due modelli è perfetto. Ma
se ci concentriamo sugli ultimi tre strati
del modello OSI, otterremo ciò di cui
abbiamo bisogno.
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LAYERED MODELS
(Lowest Three Layers)
1: Physical
2: Datalink
3: Network
OSI Model
Layer 1 si riferisce al cavo e al segnale elettrico su di
esso.
È collegato?
Il cavo è rotto, problema con impedimento, ecc?
C'è un'interferenza elettromagnetica sul rame?
C'è luce o estremità sporche sul cavo in fibra ottica?
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LAYERED MODELS
3:
2:
1: Physical
OSI Model(Lowest Three Layers)
Layer 1 si riferisce al cavo e al segnale elettrico su di
esso.
È collegato?
Il cavo è rotto, problema con impedimento, ecc?
C'è un'interferenza elettromagnetica sul rame?
C'è luce o estremità sporche sul cavo in fibra ottica?
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LAYERED MODELS
(Lowest Three Layers)
1:
2: Datalink
3: Network
OSI Model
SWITCH
ROUTER
Gestito dall'indirizzo MAC
Gestito da indirizzo IP
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Segmenting the Broadcast Domain
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LAYERED MODELS
OSI Model
Layer 2 - SwitchPassaggio di dati all'interno di una LAN
Layer 3 - Router Passaggio di dati da una LAN a un'altraPassing
data from one LAN to another
SWITCH
ROUTER
(Lowest Three Layers)
Unicast, Multicast, Broadcast consentito
Solo Unicast
Non fa Multicast (ci sono alternative)
Non fa Broadcast
2: Datalink
3: Network
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LAYERED MODELS
OSI Model
SWITCH
ROUTER
(Lowest Three Layers)
SWITCH SWITCH
192.168.1.0 /24 192.168.2.0 /24
192.168.2.1192.168.1.1
Ogni VLAN deve avere una subnet IP designata.
2: Datalink
3: Network
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Uno spazio riunioni divisibile è simile alle VLAN in una rete...
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BROADCAST TRANSMISSION
I messaggi Broadcast sono ‘uno per tutti’
switch
Broadcast message
Interesting
Boring
Boring
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BROADCAST TRAFFIC
Broadcast
messageBoring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
BoringBoring
BoringBoring
BoringBoring
BoringBoring
Boring Boring
Boring
BoringBoring
Interesting
Broadcast
message
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
BoringBoring
BoringBoring
BoringBoring
BoringBoring
Boring Boring
Boring
BoringBoring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
BoringBoring
Boring
BoringBoring
BoringBoring
Boring BoringBoringBoring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
Boring
BoringBoring
BoringBoring
BoringBoring
BoringBoring
Boring Boring
Boring
BoringBoring
Boring
Boring
Boring
BoringBoring
Broadcast
message
Broadcast
message
Interesting
InterestingInteresting
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Sicuramente c'è un modo migliore per affrontare questo problema?
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SEGMENTING BROADCAST DOMAINS – GOOD PRACTICE
Boring
Me!
Boring
Boring Boring Boring
BoringBoring
Boring Boring Boring
Boring BoringBoring
Broadcast
message: who has
192.168.1.47?
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Quick Review:
OSI Model
SWITCH
(Lowest Three Layers)
SWITCH SWITCH
Le VLAN segmentano i domini Broadcast (Livello 2).
2: Datalink
3: Network
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Quick Review:
OSI Model
SWITCH
(Lowest Three Layers)
SWITCH SWITCH
192.168.1.0 /24 192.168.2.0 /24
Per ogni VLAN sono designate subnet IP separate.
2: Datalink
3: Network
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Quick Review:
OSI Model
SWITCH
ROUTER
(Lowest Three Layers)
SWITCH SWITCH
192.168.1.0 /24 192.168.2.0 /24
192.168.2.1192.168.1.1
Un router può quindi collegare dispositivi tra domini Broadcast (VLAN).
2: Datalink
3: Network
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What is a Layer 3 Switch?
2: Datalink
OSI Model
3: Network
(Lowest Three Layers)
Routers
Switches
Se I switch fanno passaggio
di traffico Layer 2…
…cos'è esattamente un
"Layer 3 Switch"?
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What is a Layer 3 Switch?
+
Ti ricordi quando abbiamo parlato di
consolidamento degli attrezzi?
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What is a Layer 3 Switch?
1 2 3 4 WAN
SWITCH ROUTER
Ti ricordi quando abbiamo parlato di
consolidamento degli attrezzi?
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What is a Layer 3 Switch?
2: Datalink
OSI Model
3: Network
SWITCH
ROUTER
(Lowest Three Layers)
SWITCH SWITCH
192.168.1.0 /24 192.168.2.0 /24
192.168.2.1192.168.1.1Routers
Switches
Un "Layer 3 Switch" ha routers all'interno.
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What is a Layer 3 Switch?
2: Datalink
OSI Model
3: Network
SWITCH
ROUTER
(Lowest Three Layers)
SWITCH
192.168.1.0 /24 192.168.2.0 /24
192.168.2.1192.168.1.1Routers
Switches
Un "Layer 3 Switch" ha routers all'interno.
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What is a Layer 3 Switch?
2: Datalink
OSI Model
3: Network
VLAN
ROUTER
(Lowest Three Layers)
VLAN
192.168.1.0 /24 192.168.2.0 /24
192.168.2.1192.168.1.1Routers
Switches
VIRUTALTRUNK
Un "Layer 3 Switch" ha routers all'interno.
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What is a Layer 3 Switch?
2: Datalink
OSI Model
3: Network
VLAN
ROUTER
(Lowest Three Layers)
VLAN
192.168.1.0 /24 192.168.2.0 /24
192.168.2.1192.168.1.1Routers
Switches
This is often referred to as a “Router on a Stick”.
VIRUTALTRUNK
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Advanced Clocking, Layer 3
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Some Clocking Challenges:
Master Clock è in grado di sincronizzare tutti i
dispositivi?
Dante Domain Manager can arrange clocking trees to support over a thousand
Dante devices, so one device does not have to synchronize all others directly.
Dante
Interface
Maximum
Channels
Flows Redundant Clock
Master
Ultimo 0x4 2x2 4x0 2 ≤20
Broadway 16x16 16
Brooklyn II 64x64 32 ≤250
PCIe Card 128x128 32
HC 512x512 128
Dante AV V: 1x0 or 0x1
A: 8x8
V: 1
A: 4
DVS 64x64 16
Dante Via 16x16/pgm
32x32 total
8
Studio Technologies 5401 "Dante Master Clock"
Si tratta di un modulo Brooklyn II con un ingresso Sync
in grado di accettare l'input Video o Word Clock.
Questo è stato progettato per consentire alle grandi
reti di dispositivi Ultimo di lavorare insieme.
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Redundant Networks
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Redundant Networks
Le reti ridondanti sono entrambe funzionanti a tempo pieno
Dante non cade da una all’altra rete ("fail-over«)
Ridondanza Dante consiste in due opportunità per ottenere i dati attraverso.
Questo è il motivo per cui abbiamo il recupero senza soluzione di continuità se
una rete si guasta.
Questa è una considerazione per la larghezza di banda, soprattutto se trunked
insieme.
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Redundant Networks – Both Run Full-Time
SWITCH SWITCH
Mic Preamp
Mixer
PA Amplifier
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Redundant Networks – Both Run Full-Time
SWITCH SWITCH
Mic Preamp
Mixer
PA Amplifier
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Redundant Networks – Both Run Full-Time
SWITCH SWITCH
Mic Preamp
Mixer
PA Amplifier
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Redundant Networks
● Redundant Networks sono sempre Full TimeDante non "fail-over" - ha naturalmente due opportunità per ottenere i dati attraverso.
Questo è il motivo per cui abbiamo il recupero senza soluzione di continuità se una rete si guasta.
Questa è una considerazione per la larghezza di banda, soprattutto se trunked insieme.
● Redundant Networks devono essere isolate (Broadcast Domain)Entrambe le reti utilizzano PTP per Orologio nello stesso intervallo IP.
Per ottenere orologi ridondanti su ogni rete, ogni rete deve essere isolata l'una dall'altra.
● Common Failure – Connected Redundant, Configured SwitchedPer evitare questo problema, visualizzare una rete alla volta.
Verificare che tutte le periferiche siano ridondanti e che tutte le connessioni previste possano essere effettuate.
Quindi visualizzare entrambe le reti e simulare gli errori sui dispositivi.
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Redundant Networks – How Much Redundancy?
PRIMARY
SWITCH
SECONDARY
SWITCH
PRIMARY
SWITCH
SECONDARY
SWITCH
VLAN P/S
SWITCH
VLAN P/S
SWITCH
VLAN P/S
SWITCH
Stage FoH Delay Towers
Cable RedundancyFull Redundancy
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Design & Troubleshooting
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Troubleshooting: Oddball Issues To Know
OS-X Running Virtual Soundcards
Dante Virtual Soundcard cannot get clock.
DVS Shows “Listening” in Dante Controller.
Network is using IGMP Snooping.
Problem:
Symptoms:
Multicast subscriptions have a Time-To-Live (TTL). OS-X is not
properly extending subscriptions to multicast stream for clocking.
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Troubleshooting: Oddball Issues To Know
OS-X Running Virtual Soundcards
Dante Virtual Soundcard cannot get clock.
Either turn off IGMP Snooping, manually
forward PTP or “Forward All Multicast”.
Problem:
Solution:
PTP uses 224.0.1.129-224.0.1.132 on ports 319/320.
“Forward All” effectively overrides IGMP Snooping on a port.
The port is often 1Gbit, so there is likely bandwidth to spare.
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Troubleshooting: Oddball Issues To Know
iMac, Mac Mini, MacBook, etc.
Built-in Ethernet may not be serviced often
enough for Virtual Soundcards (DVS, Via, etc.)
Other network devices perform normally.
Only Virtual Soundcard Latency is inconsistent.
Problem:
Symptoms:
Not a network issue - the computer isn’t transmitting in time. The
CPU often services the NIC, which induces network jitter.
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Troubleshooting: Oddball Issues To Know
iMac, Mac Mini, MacBook, etc.
Built-in Ethernet may not be serviced often
enough for Virtual Soundcards (DVS, Via, etc.)
Use a Thunderbolt to Ethernet Adapter.
Problem:
Solution:
This moves the NIC port maintenance off the CPU and on to the
adapter, smoothing network jitter issues.
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Troubleshooting: Defining the Problem
Per risolvere un problema, è
necessario prima definirlo.
Cosa non funziona?
"Non funziona", non aiuta.
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Troubleshooting: Defining the Problem
ConnectivityIs it online and responding?
ClockingIs it synchronized and stable?
SubscriptionsIs it receiving the channels it is expecting?
LatencyAre all channels arriving in a timely manner?
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Troubleshooting: Solving the Issue
ConnectivityIs it online and responding?
ClockingIs it synchronized and stable?
SubscriptionsIs it receiving the channels it is expecting?
LatencyAre all channels arriving in a timely manner?
Acceso, collegato e porte si accendono?
Indirizzo IP duplicato o Nome Dante
mDNS discovery open? (Multicast 224.0.0.251:5353.)
Ping device to confirm it’s presence, subnet & VLAN
Convalidare il percorso per l'individuazione/comunicazione.
If link is Layer 3, ensure DNS-SD is working.
Broken trunk lines, failed routers, frozen switches.
Try new cables including trunk lines. Reboot switch.
Collegare direttamente al dispositivo o utilizzare un altro
interruttore.
Most switch config problems won’t span switches. A multicast
flood would cross if IGMP Snooping absent.
If the device is off and the IP responds to a ping or the name
shows in Dante Controller, this is your issue.
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Troubleshooting: Solving the Issue
Evaluate Dante Controller Clock Histogram
& Follow Dante Domain Manager Clock Tree:
Look for trends of stable devices. A common path for
instability indicates a network optimization issue.
“Blades of Grass” could just be clock master change.
Clear history and watch performance going forward.
Follow unicast and multicast “tree”, determine if a
particular path is challenged, past which links are not
establishing a stable clock.
Changing Clock Masters:
New clock elections take place when devices appear
on or leave the network. This may be normal behavior,
especially when systems boot up.
ConnectivityIs it online and responding?
ClockingIs it synchronized and stable?
SubscriptionsIs it receiving the channels it is expecting?
LatencyAre all channels arriving in a timely manner?
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Troubleshooting: Solving the Issue
Can the Master Clock sync all devices?
Dante Domain Manager can arrange clocking trees to support over a thousand
Dante devices, so one device does not have to synchronize all others directly.
ConnectivityIs it online and responding?
ClockingIs it synchronized and stable?
SubscriptionsIs it receiving the channels it is expecting?
LatencyAre all channels arriving in a timely manner?
Dante
Interface
Maximum
Channels
Flows Redundant Clock
Master
Ultimo 0x4 2x2 4x0 2 ≤20
Broadway 16x16 16
Brooklyn II 64x64 32 ≤250
PCIe Card 128x128 32
HC 512x512 128
Dante AV V: 1x0 or 0x1
A: 8x8
V: 1
A: 4
DVS 64x64 16
Dante Via 16x16/pgm
32x32 total
8
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Troubleshooting: Solving the Issue
ConnectivityIs it online and responding?
ClockingIs it synchronized and stable?
SubscriptionsIs it receiving the channels it is expecting?
LatencyAre all channels arriving in a timely manner?
Studio Technologies 5401 “Dante Master Clock”
This is a Brooklyn II with a Sync input that can accept
Video or Word Clock input. This was designed to
allow large networks of Ultimo devices to work
together.
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Troubleshooting: Solving the Issue
Quit other programs, just run Dante-related programs.
Is CPU servicing virtual interface often enough?
iMac, Mac Mini and MacBook (not Pro) Ethernet ports
are often managed by CPU directly. Using an external
Ethernet adapter (i.e. Thunderbolt) helps.
Known problem with OS-X and most switch makers
where multicast subscriptions are not maintained.
See our switch configuration guide for solutions.
OS-X w/ built-in network port?
OS-X and switch w/ IGMP snooping?
ConnectivityIs it online and responding?
ClockingIs it synchronized and stable?
SubscriptionsIs it receiving the channels it is expecting?
LatencyAre all channels arriving in a timely manner?
Virtual Interfaces (e.g. - DVS, Dante Via)
Computer Issues, not Network Issues.
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Troubleshooting: Solving the Issue
Is QoS Set Correctly?
In QoS, the highest value is the highest priority. So,
queue 4 is higher priority than queue 1. Those new to
switch configuration may set this backwards.
Are Device or Trunk Links Saturated?
We recommend keeping links under 80% saturation
for best performance, and QoS may be required over
60% or when 100Mbit devices are added.
Other Traffic Skewing Clock
AVB traffic does not integrate with QoS – it simply
supercedes it. Keep AVB on separate hardware.
As if “jumbo packets” are being used by other systems
on the network. If so, ensure QoS prioritize PTP.
Dante PTP uses DSCP tag “CS7” (decimal value 56).ConnectivityIs it online and responding?
ClockingIs it synchronized and stable?
SubscriptionsIs it receiving the channels it is expecting?
LatencyAre all channels arriving in a timely manner?
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Troubleshooting: Solving the Issue
ConnectivityIs it online and responding?
ClockingIs it synchronized and stable?
SubscriptionsIs it receiving the channels it is expecting?
LatencyAre all channels arriving in a timely manner?
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Troubleshooting: Solving the Issue
Working Subscription
Cannot Locate Transmitter on Network
Something is wrong with the Stream
Dante device or channel name changed
Wrong Sample Rate (One device changed)
Out of flows (switch to multicast)
No audio (silence or audio packets not received)
Receiver cannot locate transmitter/channel.
ConnectivityIs it online and responding?
ClockingIs it synchronized and stable?
SubscriptionsIs it receiving the channels it is expecting?
LatencyAre all channels arriving in a timely manner?
Dante Controller Shows the Nature of the Problem
More detail is available in the “Tool Tip” roll-over.
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Troubleshooting: Solving the Issue
ConnectivityIs it online and responding?
ClockingIs it synchronized and stable?
SubscriptionsIs it receiving the channels it is expecting?
LatencyAre all channels arriving in a timely manner?
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Next Steps
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TAKE THE LEVEL 3 TEST
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dispone di un account
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