ethernet and legacy access over dsl
DESCRIPTION
Ethernet and Legacy Access over DSL. Variety of Ethernet Access Solutions – Implementation Scenario. Ethernet over SDH/SONET. Branch. Ethernet over PDH. Branch. RICi-622GE. RICi-622GE. RICi-E1. STM-4/OC-12. GbE. 10BT. GbE. GFP. - PowerPoint PPT PresentationTRANSCRIPT
• Presented by:
• CBNetworks
• Technical Support
• http://www.cbnetworks.fr
• May 2008
Ethernet and Legacy Access over DSL
Ethernet and Legacy Access over DSL for TS2008 Slide 2http://www.cbnetworks.fr - [email protected]
F.ETH
EFMBondingGbE
LA-110F.ETH
BranchIPDSLAM
ATM
LA-210IPDSLAM
Branch
GbE
Ethernet over DSL
ASMi-54 ASMi-54
SHDSL.bis
RICi-4/8E1
RICi-16
SDH
GbE
STM-1/OC-3
10BT
100BT
EoPDH
GFP-VCAT
Branch
Branch
GFP
Egate
Branch
RICi-E110BT
Ethernet over PDH
ADM
MLPPP
RICi-622GE RICi-622GE
Branch
GbE STM-4/OC-12
RICi-155GE RICi-155GE
Branch
GbE STM-1/OC-3 GbE
GbE
Ethernet over SDH/SONET
Headquarters
ETX-202F.ETH GbE
GbEMetro Ethernet
ETX-202A
Branch
GbEGbE
Ethernet over Fiber
Variety of Ethernet Access Solutions – Implementation Scenario
Service ProviderPacket Switched
Network
• Extending the reach of the provider’s network over a variety of access technologies
• Consistent Ethernet service across different access technologies
Ethernet and Legacy Access over DSL for TS2008 Slide 3http://www.cbnetworks.fr - [email protected]
Agenda
Agenda:• ASMi-54
• Concept + Applications
• LA-110
• Concept + Applications
• LA-210
• Concept + OAM
• Summary
• Appendix• Road Maps
• LA Product Family Line
• LA-210 Flow Concept
• OAM – CC/LB/LT
Ethernet and Legacy Access over DSL for TS2008 Slide 4http://www.cbnetworks.fr - [email protected]
What is the Business Case?
Strong growth of DSL subscribers ~200 million in 2007
expected to grow to 364 million in 2011*
What are they used for?• Internet hi-speed access (residential customers)
• Added value (residential market - video, gaming, etc.)
• Voice over IP services
• IP VPN services for business customers* Source: Infonetics Research, Broadband Aggregation Hardware and Subscribers Market Share and Forecasts 4Q07
We have the technology and the infrastructure which provide higher Bandwidth….
…what else can we do with it?• Carrier & Utilities Market (Railways, Highways, CCTV)
• Leased line services (E1/T1, n x 64 kbps), FR
• Ethernet services for Business customers
• Cellular backhaul for 2G/2.5G and 3G networks
Ethernet and Legacy Access over DSL for TS2008 Slide 5http://www.cbnetworks.fr - [email protected]
Customer Premises
IPDSLAMPBX
E1LA-110
ETH
CO/POP
TDMoIPGateway
IPmuxGmux
GbE
TDM
Customer PremisesPBX
E1LA-110
ETH
SHDSL
IPDSLAM
SHDSL
PSNEth/IP/MPLS
RNC
IPDSLAM
ASMi-54ASMi-54
LA-210
Node-B
Node-B
PSNEth/IP/MPLS
n x SHDSL
n x SHDSL
Fast Ethernet Fast Ethernet
GbE
GbE
Fast Ethernet
ETH & Legacy Over DSL
Ethernet and Legacy Access over DSL for TS2008 Slide 6http://www.cbnetworks.fr - [email protected]
Modem
Type
ETH
Ports
Other
interfaces
Max.
RateMax.wires
Power
Supply
EN –50124
Stand.DIN Installation
ETH
Performance
Metal
BoxStandard
ASMi-52 1 PORTE1/T1/V35/
X21/RS5304.6M 2W,4W AC/DC/24V
Comply on
S/A*Comply 4W VLAN priority Comply SHDSL
ASMi-52L1 or 4
PORTsE1/V35 4.6M 2W,4W AC/DC N/A N/A VLAN priority N/A SHDSL
ASMi-54 4 PORTSE1 – Phase
2.022.8M 2W,4W,8W AC/DC/24V N/A
Support on 2w &
4w
VLAN
priority /QOSOnly 8W SHDSL.bis/EFM
MP-2100, MP-4100, DXC-30, LRS-24
Central Solution
MP-4100*, LRS-102
SHDSL Products Profile
* ASMi-54C – beta Q3/08
Ethernet and Legacy Access over DSL for TS2008 Slide 7http://www.cbnetworks.fr - [email protected]
ASMi-54 – G.SHDSL.bis Technology
ASMi-54
• New SHDSL standard – TC-PAM 32
• Enables 5.7Mbps over 2w
• Even higher rate over 8w with bonding
ASMi-52
• Standard SHDSL – TC-PAM 16
• Enables 2.3Mbps over 2w
• No bonding
Services Link Options
2w
4w
8w
ETH
ASMi-54
5.7 Mbps
11.4 Mbps
22.8 Mbps
ETH
ETH
ETH
Ethernet and Legacy Access over DSL for TS2008 Slide 8http://www.cbnetworks.fr - [email protected]
ASMi-54 – Phase 1
Management options
• Terminal, Telnet, ConfiguRAD, Out-of-band/In-band Ethernet port
• In-band dedicated VLAN to encapsulate management traffic
WAN Protocol
• EFM bonding - enables each link to synch at different rate. Failure or addition of a link doesn't drop the whole group
VLAN Mode
• Stacking/stripping based on 802.1D MAC ,802.1Q VLAN
• Quality of service (QOS)on the DSL egress direction
Fault Propagation
• From SHDSL to user interface
Estimated Distance
• Estimated distance @ 5,696 kbit/s – 2.9 km - with noise-free @26AWG cable
• Up to 22.8Mbps over 8 wires
Ordering Options
• Plastic/Metal box/Rail Mount case
• Extended temperature option (-20˚C to +70˚C)
Ethernet and Legacy Access over DSL for TS2008 Slide 9http://www.cbnetworks.fr - [email protected]
ASMi-54 – Phase 2.0
• 4 ETH ports with additional E1/T1 ports
• RADview support (RV-EMS-SW/TDM/PC 1.8)
• SHDSL.bis repeaters support:• 2W, plastic – S-RPT
• 2W, metal IP-67 Outdoor – S-RPT/IP-67
• 4W, metal IP-67 Outdoor – S-RPT-4W
2w
4w
8w
Four ETH
ASMi-54 5.7 Mbps
11.4 Mbps
22.8 Mbps
E1/T1
Phase 2.0
Available !!
Beta Q2/08
Ethernet and Legacy Access over DSL for TS2008 Slide 10http://www.cbnetworks.fr - [email protected]
Central Solution:LRS-102/ASMi-54 Card
LRS-102
• 4U, 12 I/O
• System redundancy
• Central management
• Improved pricing
• 12 x 16W per ASMi-54 card
• High port density - 24 OP-108/106 modules
• Under customers validation
ASMi-54 Card
• Stackable into LRS-102 and MP- 4100
• Supports up to 16 wires on the DSL line
• Interfaces:
• 8 E1 lines via DB-44 cable balanced
• 2 ETH 10/100 Base T ports
2 x power supplies
2 x Common Logic
12 I/O slots
Ethernet and Legacy Access over DSL for TS2008 Slide 11http://www.cbnetworks.fr - [email protected]
Ethernet and Legacy Access over DSL for TS2008 Slide 12http://www.cbnetworks.fr - [email protected]
ETH
ETH
ASMi-54
Pumping Station
ASMi-54 Point to Point Applications
Winning Combination / Business Environment:
• Built-in Ethernet bridge
• High ETH performances
• 5.7 Mbps over 2-wire lines – estimated 2.9 km on 26AWG
ASMi-54
ASMi-54 ASMi-54
Control Room
CCTV
5.7 Mbps
5.7 Mbps
Four ETH
E1/T1
Phase 2.0
Phase 1.0Four ETH
E1/T1 ASMi-54SHDSL.bis Repeater ASMi-54
Phase 2.0
Phase 1.0
Ethernet and Legacy Access over DSL for TS2008 Slide 13http://www.cbnetworks.fr - [email protected]
Ethernet and E1 Range Extension over Copper using a Central Solution
Key Benefits
• Powerful central site solution
• Low cost and simplicity
• High reliability (PS and main link protection)
CPPBX POP
SHDSL.bis
n x FETH
n x E1/T1
E1
SDH/SONET
ETH
ASMi-54LRS-102/MP-4100
IP/MPLS
Beta Q3/08
Ethernet and Legacy Access over DSL for TS2008 Slide 14http://www.cbnetworks.fr - [email protected]
Customer Premises
IPDSLAMPBX
E1LA-110
ETH
CO/POP
TDMoIPGateway
IPmuxGmux
GbE
TDM
Customer PremisesPBX
E1LA-110
ETH
SHDSL
IPDSLAM
SHDSL
PSNEth/IP/MPLS
RNC
IPDSLAM
ASMi-54ASMi-54
LA-210
Node-B
Node-B
PSNEth/IP/MPLS
n x SHDSL
n x SHDSLGbE
GbE
Fast Ethernet
Fast EthernetFast Ethernet
ETH & Legacy over DSL
Ethernet and Legacy Access over DSL for TS2008 Slide 15http://www.cbnetworks.fr - [email protected]
Evolution of Ethernet and Legacy Service Delivery over DSL
• All the way ATM; Ethernet, E1, serial or FR services based on ATM
LA-110Legacy Core
ATM
Traditional DSLAM ATM
ATM ATM
ATM Ethernet
PSN CoreEthernet, IP,
MPLS
• Ethernet and legacy services over PSN using PWE
• IAD to DSLAM segment based on ATM
Traditional DSLAM with
Ethernet Uplink
LA-110
Ethernet and Legacy Access over DSL for TS2008 Slide 16http://www.cbnetworks.fr - [email protected]
LA-110 Interfaces & WAN Protocols
SHDSL
• 1,2 pairs or 4 pairs (IMA)
• Line coding:PAM16
• Data rates up to 2.3 Mbps (2W)
• Data rates up to 4.6 Mbps (4W)
• Date rates up to 9.2 Mbps (IMA)
ADSL
• ITU-T G.992 Annex A
• Line coding:Full DMT
• Line rate: 8/1 Mbps
• Chipset: Connexant
WAN Interfaces
E1/T1 ports (ATM or TDM)
Control port
Serial data interface (V.35, X.21)
10/100BaseT interfaceBridgeRouter
E1
• ATM UNI
• G.703, G.704
• Line rate: 2.048 Mbps
Ethernet and Legacy Access over DSL for TS2008 Slide 17http://www.cbnetworks.fr - [email protected]
Ethernet and Legacy Access over DSL for TS2008 Slide 18http://www.cbnetworks.fr - [email protected]
Leased Line & LAN Services over ATM
DSLAMSHDSL
DSLAMLA-110
Site A
E1
V.35Router
PBX
LAN
LA-110/IMARouter
PBX
LANETH
4*SHDSL
ATM
E1
V.35
ETH
Site B
• Leased Line/CES Applications • Serial (V.35/X.21) bit stream over ATM• Unframed E1 over ATM• Fractional E1/T1 over ATM• E1/T1 to serial bit stream• E1 UNI connection over ATM
• LAN Operating modes: • Routing (Including Firewall, NAT DHCP)• Bridging (Including full VLAN support)
Ethernet and Legacy Access over DSL for TS2008 Slide 19http://www.cbnetworks.fr - [email protected]
Frame Relay Services over ATM
LANLA-110
DSLAM LANLA-110
Branch Office
ATM
DSLAM
Central Office
FRAD FRAD
Frame Relay
V.35/X.21 V.35/X.21
FRF.5
LA-110DSLAM
Customer B
ATM
Customer A
FRAD FRAD
FR ATM
FRF.8
Ethernet and Legacy Access over DSL for TS2008 Slide 20http://www.cbnetworks.fr - [email protected]
LA-110 version 3.5 New Features
• Support for Pseudowire for legacy service emulation over Packet-Switched Networks using IPDSLAMs
• Supported Services:• Leased lines using TDM pseudowire• PSTN access using TDM pseudowire• Cellular backhaul using ATM and TDM pseudowire• Frame Relay using HDLC or Frame Relay pseudowire
• Pseudowire standards• TDM – CESoPSN, TDMoIP and SAToP• ATM – ATMoPSN• HDLC – HDLCoPSN• FR – FRoPSN
• Clocking based on NTR
• Full SNMP agent allows RV-EMS or any standard management station to manage the device
PSN CoreEthernet, IP, MPLS
IPDSLAMEthernet
ATM Ethernet
LA
Available
for Beta
Ethernet and Legacy Access over DSL for TS2008 Slide 21http://www.cbnetworks.fr - [email protected]
Customer Premises
IPDSLAMPBX
E1LA-110
ETH
CO/POP
TDMoIPGateway
IPmuxGmux
GbE
TDM
Customer PremisesPBX
E1LA-110
ETH
SHDSL
IPDSLAM
SHDSL
PSNEth/IP/MPLS
Leased Line over Packet Switched Networks
• CESoPSN or TDMoIP tunneling solution (PWE)
• On the receive side the jitter buffer stores the payload prior to play-out to the local TDM attachment circuit
• The size of the buffer is locally configured to accommodate the PSN-specific packet delay variation
• Clock recovery is based on NTR
Ethernet and Legacy Access over DSL for TS2008 Slide 22http://www.cbnetworks.fr - [email protected]
Customer Premises
IPDSLAMPBX
E1LA-110
ETH
CO/POP
TDMoIPGateway
IPmuxGmux
GbE
TDM
Customer PremisesPBX
E1LA-110
ETH
SHDSL
IPDSLAM
SHDSL
PSNEth/IP/MPLS
RNC
IPDSLAM
ASMi-54ASMi-54
LA-210
Node-B
Node-B
PSNEth/IP/MPLS
n x SHDSL
n x SHDSLGbE
GbE
ETH & Legacy Over DSL
Fast Ethernet
Fast EthernetFast Ethernet
Ethernet and Legacy Access over DSL for TS2008 Slide 23http://www.cbnetworks.fr - [email protected]
Evolution of Ethernet and Legacy Service Delivery over DSL
IPDSLAM
• All the way ATM; Ethernet, E1, serial or FR services based on ATM
LA-110 Legacy Core
ATM
Traditional DSLAM ATM
ATM ATM
ATM Ethernet
PSN CoreEthernet, IP, MPLS
• Ethernet and legacy services over PSN using PWE
• IAD to DSLAM segment based on ATM
Traditional DSLAM with
Ethernet Uplink
LA-110
PSN CoreEthernet, IP, MPLS
• All the way PSN, Ethernet and legacy services using PWE
• IAD to DSLAM segment based on Ethernet (EFM)
IPDSLAMEthernet
Ethernet (EFM) Ethernet
LA-210
Ethernet and Legacy Access over DSL for TS2008 Slide 24http://www.cbnetworks.fr - [email protected]
LA-210 Introduction
• G.SHDSL.bis EFM Ethernet Access device supporting rates of:• 2wire – 5.7Mbps
• 4wire – 11.4Mbps
• 8wire – 22.8Mbps
• MEF certification• MEF-9 Test suite for services at the UNI
• MEF-14 Test suite for Traffic Management
E1/T1 ports
Up to 4 Fast EthernetSerial data interface
(X.21, V.35)
WAN interfaces• SHDSL EFM (1,2 or 4 pairs)• SHDSL ATM (1 or 2 pairs)
Control port
Ethernet and Legacy Access over DSL for TS2008 Slide 25http://www.cbnetworks.fr - [email protected]
MEF Services Terminology
Ethernet Private Line (EPL)
Point-to-Point EVC
Carrier Ethernet Network
CE UNI
CE
UNI
CE
UNI
ISPPOP
*UNI
Internet
*NNINNI
Port Based
Service Multiplexed Ethernet UNI
Multipoint-to-Multipoint EVC
Carrier EthernetNetwork
CE UNI
CE
UNI
CEUNI
NNI
NNI
Service Based
Ethernet Virtual Private Line (EVPL)
CE UNI
CE
UNI
CE
UNI
ISPPOP
UNI
Port BasedUNI
UNI
Ethernet Private Line (EPLAN)
Ethernet Virtual Private Line (EVPLAN)
Service Multiplexed Ethernet UNI
CE UNI
CE
UNI
CEUNI
Service Based
Ethernet and Legacy Access over DSL for TS2008 Slide 26http://www.cbnetworks.fr - [email protected]
LA-210 Working Modes
• LA-210 is designed to deliver business-class Ethernet services, using two operational modes:
• Bridge mode• VLAN aware/unaware
• VLAN stacking
• Supports 64 VLANs out of full range (1-4095)
• Static/Dynamic MAC learning with aging
• 1K of MAC entries
• Flows – customer traffic is mapped to the Ethernet flows (EVCs) using the following:
• Port-based
• Customer VLAN ID
• Customer VLAN priority
• DSCP
• IP Precedence
Ethernet and Legacy Access over DSL for TS2008 Slide 27http://www.cbnetworks.fr - [email protected]
LA-210 Flow Based Forwarding Model
By CoS
Step 6– Editing & Marking:1.Editing=Adding SP-VLAN2.Marking=Adding SP-P.Bit
Step 2–Flow Mapping: Defines members per flow
Step 3–Assigning CoS:1.Fixed per Flow2.CoS per Service
Step 4–Assigning BW Profile:1.CIR/EIR2.CBS/EBS
Step 5–Queues & Rate Limit:1.Strict or WFQ 2.Rate Limit per Q/SHDSL Port
CoS per Flow Flow 1 = CoS 3
Policer per CoS CoS 3=BW profile 1
Flow 1 (EVC 1) CE-VLAN= 1
Flow 1 (EVC 1)CE-VLAN : 555 p.bit 7 777 p.bit 4
Policer per CoS CoS 7=BW profile5Flow 2
Up to 8 flows
Policer per CoS CoS 4=BW profile3
Step 1–Flow Classification:1.VLAN ID2.P.Bit3.DSCP4.IP-Precedence
EditingAdding SP-VLAN
MarkingCE-P.bit SP-P.bit
UNI NNI
CoS Queues ST/WFQ
mng 5
6-7 4 ST/WFQ
4-5 3 ST/WFQ
2-3 2 ST/WFQ
0-1 1 ST/WFQ
p.bit CoS/Service
7 7
6 6
5 5
4 4
3 3
2 2
1 1
0 0
Classification by Flow Key
per port
Ethernet and Legacy Access over DSL for TS2008 Slide 28http://www.cbnetworks.fr - [email protected]
OAM
Customer PremisesCustomer Premises
LA-210CPE LA-210 CPE
Operator AOperator B
802.3ah
(Access Link ME)
End-to-End OAM
802.1ag/Y.1731
Phase 2.5
Ethernet and Legacy Access over DSL for TS2008 Slide 29http://www.cbnetworks.fr - [email protected]
OAM: 802.3ah-Link
• Information• Auto-discovery, Heartbeat (1/second)
• Event notification• Reporting statistics
• Variable request & response• Querying MIB variables
• Loopback control• Intrusive loopback
• Organization specific
EFM OAM Format
Customer PremisesCustomer Premises
LA-210CPE LA-210 CPE
Operator AOperator B
802.3ah
(Access Link ME)
Ethernet and Legacy Access over DSL for TS2008 Slide 30http://www.cbnetworks.fr - [email protected]
OAM: 802.1ag-Connectivity
• 8 OAM levels
• MEP/MIP/MEG concept
• Main messages:• CC
• LB
• LT
Service OAM header
Service OAM MEPs and MIPs
MEP = Maintenance-End-PointMIP = Maintenance-Intermediate-PointMEG = Maintenance Entity Group
Ethernet and Legacy Access over DSL for TS2008 Slide 31http://www.cbnetworks.fr - [email protected]
Summary
LA Family:DSLAM
SHDSL
DSLAMLA-110
Site A
E1
V.35Router
PBX
LAN
LA-110/IMARouter
PBX
LANETH
4*SHDSL
ATM
E1
V.35
ETH
Site B
LA-210: PSN CoreEthernet, IP, MPLS
IPDSLAMEthernet
Ethernet (EFM) Ethernet
LA-210
ASMi-54/LRS-102:
CPPBX POP
SHDSL.bis
n x FETH
n x E1/T1
E1
SDH/SONET
ETH
ASMi-54LRS-102/MP-4100
IP/MPLS
Ethernet and Legacy Access over DSL for TS2008 Slide 33http://www.cbnetworks.fr - [email protected]
Ethernet and Legacy Access over DSL for TS2008 Slide 34http://www.cbnetworks.fr - [email protected]
Ethernet and Legacy Access over DSL for TS2008 Slide 35http://www.cbnetworks.fr - [email protected]
ASMi-54 Road Map
Phase
numberProduct Main Description
Beta
ReleaseNotes
Phase 1.0ASMi-54 with four
ETH portsETH services over 2W, 4W, 8W
Status –
officially
released!
Without RADview
support
Phase 2.0ASMi-54 with
additional E1/T1 port
• E1/T1 and ETH over 2W,4W,8W
• Interoperability opposite SHDSL
repeaters
Q2/08RADview support
Phase 2.5 ASMi-54Daisy chain and multipoint
application supportTBD
Phase 1.0ASMi-54 card into
MP-4100/LRS-102
ASMi-54 card, 16W, with 8E1 and
2ETH portsQ3/08
Phase 1.1ASMi-54 card with
power feeding supportDual slot card Q4/08
Including remote
power feeding
support –120vdc
Ethernet and Legacy Access over DSL for TS2008 Slide 36http://www.cbnetworks.fr - [email protected]
LA-110 Road Map
Date Main Features Access Network
Version 3.5
In Beta
• PW support• SNMP
ATM
PSN
Q4/2007 -
Version 4.6
New HW
• ADSL2+– E1– Data port
• SHDSL (bis) ATM up to 2 pairs• 4 Ethernet ports• Adaptive clock• SHDSL EFM ready
ATM
PSN
Ethernet and Legacy Access over DSL for TS2008 Slide 37http://www.cbnetworks.fr - [email protected]
LA-210 Road Map
Date Main Features Access Network
Version 1.0Testing versionAvailable now
• SHDSL (bis) EFM up to 4 pairs• Ethernet services• 4 Ethernet ports
PSN
Early Q2/08Version 1.5(Beta)
• Ethernet OAM• Enhanced QoS• SHDSL (bis) ATM up to 2 pairs• EVC support (EVPL)• HW PW ready
PSNATM
Q2/2008Version 2.5Beta
• TDM PW• Adaptive clock recovery• Standard PM per Y.1731 • SNMPv3
PSNATM
Q4/2008 (preliminary)Version 2.6
• Based on version 2.5 feature-set• NTR• VDSL2 bonding (not finalized yet)
PSN
Ethernet and Legacy Access over DSL for TS2008 Slide 38http://www.cbnetworks.fr - [email protected]
LA-210 Road Map
Date Main Features Access Network
• Q1/2009• Version 3.0 Beta
• CLI • Per EVC Shaping• Hierarchical scheduling• ACL with filter, drop, rate limit per IP range,
Ethertype, MAC address• Limit number of MAC• OAM Enhancements:
• IEEE OAM MIP – pending• MEF SOAM Probe pending standardization
• PSN• ATM
Ethernet and Legacy Access over DSL for TS2008 Slide 39http://www.cbnetworks.fr - [email protected]
Ethernet and Legacy Access over DSL for TS2008 Slide 40http://www.cbnetworks.fr - [email protected]
Ethernet Access over DSL-LA
Option Network Link ServicesAccess Network
LA-210/SHDSL• SHDSL up to 4 pairs (EFM bonded)• One pair of VDSL2
• 1/4 Ethernet ports*1 E1/T1 port (TDM)*1 serial port (TDM/HDLC)
PSN
LA-110/SHDSL • SHDSL 2/4W
• 1 E1/T1 port (ATM/TDM)• 1 serial port
• HDLC• TDM• FR
• 4 voice ports (VoDSL)*1/4 Ethernet port
ATM and PSN
LA-110/SHDSL/IMA • SHDSL 4 pairs with IMA
• 1 E1/T1 port (ATM/TDM)• 1 serial port
• HDLC• TDM• FR
• 1 Ethernet port
ATM and PSN
LA-110/ADSL• ADSL• ADSL2+*
• 1 E1/T1 port (ATM/TDM)• 4 voice ports (VoDSL)*1 serial port
• TDM• FR
*1/4 Ethernet port
ATM and PSN
Ethernet and Legacy Access over DSL for TS2008 Slide 41http://www.cbnetworks.fr - [email protected]
Ethernet and Legacy Access over DSL for TS2008 Slide 42http://www.cbnetworks.fr - [email protected]
LA-210 Flow Based Forwarding Model
By CoS
Step 6 –P. Bit priority marking:Adding the P.bit to the SP-Vlan, according to
user configured profiles.
Step 2 –Flow Mapping: Defines VLAN
members per flow
Step 3 –Assigning Fixed CoS
per Flow/CoS per P.bit
Step 4 –Policer Per CoS:
Define the CIR/EIR/CBS/EBS Bw criteria per
CoS
Step 5 –Configuring Strict or WFQ priority, according to user
configured profiles.Note Priority Queues are
fixed to CoS.
CoS per Flow Flow 1 = CoS 3
Policer per CoS CoS 3=BW profile 1
Flow 1 (EVC 1) CE-VLAN= 1
Flow 1 (EVC 1)CE-VLAN : 555 p.bit 7 777 p.bit 4
Policer per CoS CoS 7=BW profile5Flow 2
Up to 8 flows
Policer per CoS CoS 4=BW profile3
Step 1 –Flow
Classification
EditingAdding SP-VLAN
MarkingCE-P.bit SP-P.bit
UNI NNI
CoS Queues ST/WFQ
mng 5
6-7 4 ST/WFQ
4-5 3 ST/WFQ
2-3 2 ST/WFQ
0-1 1 ST/WFQ
p.bit CoS/Service
7 7
6 6
5 5
4 4
3 3
2 2
1 1
0 0
Classification by Flow Key
per port
Ethernet and Legacy Access over DSL for TS2008 Slide 43http://www.cbnetworks.fr - [email protected]
Mapping User Traffic to Services
• On user ingress – traffic is mapped to Service by one of the following criteria:
• P.Bit
• VLAN ID
• IP Precedence
• DSCP
C-Priority Bit
C-VLAN ID
Layer 2 Frame Structure
DSCP
Layer 3 Frame Structure
1 32 54 6 7 8
IP Precedence
Ethernet and Legacy Access over DSL for TS2008 Slide 44http://www.cbnetworks.fr - [email protected]
CoS/Services Mapping
CoS Mapping criteria:
VID’s + P.bit: 10 / 515 / 3
CoS/Services
0
75
3• P.Bit
6
4
• VLAN ID
EVC1
EVC2
EVC3
UNI
CoS/Services
0
7
EVC2
VID6
EVC1
VID6VID7 VID7
4
21
6
• IP Precedence/DSCP
CoS/Services
0
7
38
22
DSCP
Layer 3 Frame Structure
1 32 54 6 7 8
IP Precedence
3
Ethernet and Legacy Access over DSL for TS2008 Slide 45http://www.cbnetworks.fr - [email protected]
Policer Per Service/Flow Bandwidth Control
• Traffic policing per ingress Service• Dual Token Bucket mechanism
(CIR+CBS, EIR+EBS) per policer
• 2 rate (CIR/EIR), 3 color (Green/Yellow/Red) marking:• Green:0 to CIR – always
‘respected’
• Yellow: between CIR to EIR – Will be respected until the queue reaches a predefine threshold, then it will discarded
• Red: above EIR – always discarded
EVC1
EVC2
EVC3
UNI EVC2
CoS 1
CoS 4
CoS 7
Ethernet and Legacy Access over DSL for TS2008 Slide 46http://www.cbnetworks.fr - [email protected]
Queues/Egress Rate Limit/Scheduler
• MNG Traffic Always get the Highest Queue
• 4 Queues on the Egress (4th Q has the Highest Priority)
• Each Queue can be configured as Strict/Weighted Fair Queue (100 Weights)
• Egress Rate Limit per Queue/Port (DSL)
• Scheduling:
• Strict on Top of WFQ
• WFQ (Weight of Q) ÷ (Weight of all Q)
• Example: Queue #2 40 ÷ 80 = ½Queue #1 30 ÷ 80 = 3/8Queue #0 10 ÷ 80 = 1/8
0
3Rate
Limitation/Shaping
Scheduling
4 MNG
Strict
WFQ=40
WFQ=30
WFQ=10
2
1
Ethernet and Legacy Access over DSL for TS2008 Slide 47http://www.cbnetworks.fr - [email protected]
Editing And Marking
• Editing the SP-VLAN ID towards the network
• Stack
• None
• Marking the Flow Priority on the Egress according to:
• P.Bit (802.1p)
• IP Precedence
• DSCPEditing
AndMarking
Network
EditingAnd
Marking
VID’s: 10,15,20-30 SP-100P.Bit 7
UnclassifiedSP-200P.Bit 3
Ethernet and Legacy Access over DSL for TS2008 Slide 48http://www.cbnetworks.fr - [email protected]
Ethernet and Legacy Access over DSL for TS2008 Slide 49http://www.cbnetworks.fr - [email protected]
Continuity Check (CC) OAM
• CC OAM Defined per EVC, allows for one-way connectivity monitoring
• Loss of Continuity (LOC) is declared (only at the sink side) upon 3.5 seconds without receiving CC OAM frame
• Loss of Continuity (LOC) is cleared upon sink receiving 2 CC OAM frames within a window of 3.5 seconds
• Upon CC failure
• Send trap
• Update active alarm log
• Update statistics
• Optional uplink switch-over
Customer PremisesCustomer Premises
E-NTUCPE E-NTU CPE
Operator AOperator B
CC OAM Frames
CC SourceCC Sink
Ethernet and Legacy Access over DSL for TS2008 Slide 50http://www.cbnetworks.fr - [email protected]
Loopback (LB) OAM
• Defined per EVC, allows for non-intrusive loopback (round trip) connectivity monitoring
• Sent from MEP, looped by either MEP or MIP
• LB Failure is declared upon 2 seconds without receiving the specific LB OAM frame
• Upon LB failure
• Send trap
• Update active alarm log
• Update statistics
• Optional uplink switch-overService OAM MEPs and MIPs
Customer PremisesCustomer Premises
E-NTUCPE E-NTU CPE
Operator AOperator B
LB OAM Request
LB OAM Reply
Ethernet and Legacy Access over DSL for TS2008 Slide 51http://www.cbnetworks.fr - [email protected]
Diagnostic Loopbacks
• Layer 1 Loopback – loopbacks traffic from Rx to Tx
• Out of service – disrupts service
• Cannot traverse Ethernet bridge
• Performed on all traffic
• Loopback activation is via management not OAM protocol
• Layer 2 Loopback – loopbacks traffic and swaps MAC Addresses
• Replaces Source Address with Destination Address
• Can traverse Ethernet bridges
• Performed per VLAN (or EVC)
No Layer L2 Loopback
Tester
ETXTester
With Layer L2 Loopback
Ethernet and Legacy Access over DSL for TS2008 Slide 52http://www.cbnetworks.fr - [email protected]
Link Trace (LT) OAM
• Once a problem detected with CC or LB than LT can be used to pin point where the problem is
• OAM is sent to the final MAC address and all nodes in the path that receive the LT request send back LT response, this way the failure point is found
• Can be used also the resolve disputes when more than 1 network is used
Customer PremisesCustomer Premises
E-NTUCPE E-NTU CPEOperator AOperator BLT Req
LT Rep