asr 1000 архитектура маршрутизаторов.pdf

Cisco Expo 2010

, [email protected] SystemsCCIE No.: 19895

Cisco ASR 1000

,

2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 2

Cisco ASR 1000

- - ASR 1013-

Cisco ASR 1000

- RP ESP- Cisco Quantum Flow Processor

- - - - QoS

Cisco IOS XE

- - - ISSU

-


- Cisco ASR 1000

2RU/4RU/6RU

5/10/20 Gbps

AC/DC

//

Cisco ASR 1000 -

Cisco ASR 1000 -

QoS

Cisco ASR 1000 ,

SP/Enterprise

BNG (BRAS, LAC, LNS)

IPSec

PE/MSE

CPE


Cisco ASR 1000

SPA Slots

# ESP# RP# SIPIOS 1G

()

3-slot

1

RP1 SIP10G

4

3.5 (2RU)5-10 Gbps

4-8 Mpps

Front to Back

470

8-slot

1

1

2

7 (4RU)10-20+ Gbps

8-16+ Mpps

Front to Back

765

12-slot

2

2

3

10.5 (6RU)10-20+ Gbps

8-16+ Mpps

Front to Back

1275

2 RU

4 RU

6 RU


Cisco ASR 1013

13RU

Cisco ASR 1013

ASR 1013

- RP2/RP3 ESP40G/ESP80G,

- RP- ESP-

- 6 I/O , 24 HH SPA, 360 !

- Cisco ASR 1006 PEM ( )


Cisco ASR 1000

Front-to-Back

Cisco ASR 1013 ESP-40G SIP-40G

40G

QFP 1

TCAM 40

256

Intel Wolfdale Dual Core 1.86 GHz

8

ASR 1006, ASR 1013

40G

SPA 4

128

6

Freescale MPC8548E

ASR 1006, ASR 1013

- 1400 10

- IMX 7


ESP

SPA

Cisco ASR 1000

SPA

SIP

ESP

RP

2

1

0

1

0

1

0

Cisco ASR1006

SPA

SIP

ESP

RP

1

0

0

0

0/0

0/2 0/3

0/1

Cisco ASR1004

Cisco ASR1002


RPRoute Processor RP1 RP2

RP1 RP2

1.5 GHz Freescale 8548 Dual-Core Intel Xeon 2.66 GHz

2GB 4GB 8GB 16GB

IPv4 1,000,000 256,000

IPv6 4,000,000 1,000,000

CON/AUX/ETH CON/AUX/ETH

HDD 40HDD 80HDD

. USB

STRATUM-3

( )


ESPEmbedded Service Processor ESP5G, ESP10G, ESP20G, ESP40G

( QFP )

, (BQS), QoS

- SPA

- : input shaping, reassembly ( ),

replication RP

(ESI) midplane

- QFP

- ,

QFP ESI

FECP QFP, , midplane .. ..


ESP

ESP-5G ESP-10G ESP-20G ESP-40G

5Gbps 10Gbps 20Gbps 40Gbps

QFP 20 QFP 40 QFP 40 QFP 40

900 MHz 900 MHz 1.2 GHz 1.2 GHz

~ 1Gbps 3 Gbps 8 Gbps 10 Gbps

QFP

256 MB 512 MB 1GB 1GB

64 MB 128 MB 256 MB 256 MB

TCAM 10 MB 10 MB 40 MB 40MB


Cisco Quantum Flow Processor

40 4 ( ) ; 160

TCAM4 I/F; 1-4

C :

1.2 GHz Tensilica ISA DRAM

flow-locks, lookup, stats, police, range lookup, crypto

Packet Processing Engine

Packet Processor

BQS Traffic Manager

QFP/BQS Buffer/Queue Subsystem

3 (min, max excess)

HQF


SIPSPA Interface Processor SIP10G, SIP40G

SPA

- 4 SPA

- 4 HH SPA, 2 FH SPA 2 HH SPA + 1 FH SPA

- (OIR)

QoS

- ( )

- : ( ) ,

ESP . SIP10G 128 , SIP40G

256

clock distribution

midplane, OIR ( ), SPA

- , ESP


Ethernet SPA

FE 4 8 TX HH

GE 2, 5, 8 SFP HH

GE 10 SFP FH

10GE 1 XFP HH


ATM POS SPA

OC-3/STM-1 POS 2, 4, 8 SFP HH

OC-12/STM-4 POS 1, 2, 4, 8 SFP HH

OC-48/STM-4 POS2,4 SFP HH

OC3/STM1 ATM 1,3,8 SFP HH

OC12/STM4 ATM 1 SFP FH

CHOC12/DS0 1 SFP FH

OC192-POS 1 XFP FH


Serial Channelized SPA

(4XT)

4 HH

T1/E1 8 HH

T3/E3 2 4 HH

T3 2 4 HH

OC-3/STM-1

1 SFP HH


Cisco ASR 1000

RP Route Processor

- (control-plane)

-

ESP Embedded Service Processor

- (forwarding-

plane)

SIP SPA Interface Processor

-

SPA Shared Port Adapter

- ,

-

ESP


Cisco ASR 1000

EOBC Ethernet Out-Of-Band Channel

-

-

- Watchdog

- ,

.. ..

RP ESP

I2C-

-

- active/standby

- RP (reset,

power down, interrupt)

- EEPROM

SPA Control Links

- IOCP SPA

- SPA OIR ( )

- EEPROM SPA


ESP5G


ESP10G


ESP20G


SIP40G


SIP40 ESP40 ASR 1013

4 5 ASR 1013 ESI SIP10


ESP ESP10

QFPQFP

QFP

5G 5G

5G5GQFP

5G unicast 5+5=10

1G 8G

2G 2G

1G multicast , 8 2G unicast 8+2=10G

5G 5G

6G6G

5G unicast & 6G unicast (5+6=11) 10G

1G 10G

1G1G

1G multicast , 10 1G unicast (10+1=11) 10G

ESP - , (.. 10G ESP10G)


SIP40 QoS

- : low- high-priority- 802.1P, IPv4 TOS, IPv6 TC, MPLS EXP

- (TOS, EXP, CoS = 6,7) high-priority - / VLAN

ESP

- : Weighted Fair Queuing- minimum BW weight ( minimum rate High priority)- Excess BW weight

- (line rate)- : High/Low priority- -128MB SIP40- (ENET PAUSE) ( High-priority )


QoS

VLAN QoS EF AF4

EF

AF1

AF4

VLAN

Physical Interface

Physical Interface

SIP

default

EF

AF1

AF4

default

interface GigabitEthernet 1/1/0.1

service-policy output Parent

...

interface GigabitEthernet 1/1/0.1000

service-policy output Parent

policy-map Childclass ef

priority level 1police 128000

class af4priority level 2police 1000000

class af1bandwidth remaining ratio 9

class class-defaultbandwidth remaining ratio 1

!policy-map Parentclass class-defaultbandwidth remaining ratio 1shape average 1500000service policy Child

VLAN

bandwidth remaining ration


Priority Propagation

(PQ)

- Priority Level 1 - Priority Level 2 Priority Level 1

Priority Propagation

- Priority Propagation?- , ()

Priority Queueing + Priority Propagation =

- policer- policer

-

EF

AF1

AF4

VLAN

Port

Port

SIP

def

EF

AF1

AF4

def

VLAN


Quality of Service ASR 1000

- Precedence, DSCP, MPLS EXP, 802.1p, FR-DE,

ACL, packet-length, NBAR, FPM

- : TCAM

- Precedence, DSCP, MPLS EXP, 802.1p, FR-DE,

discard-class, qos-group

- : QFP

Policing

- 1 rate 3 color, 2 rate 3 color, percent-based

policing

- L2 overhead ( Ethernet - 14 ( src mac, dst mac, type )

- : QFP

WRED

- Precedence, DSCP, discard-class

- : QFP

- - : 64K ESP5, 128K ESP10 ESP20, (RP, crypto engine)

- : Max rate, min rate, excess weight

- 2 - ( 5) QoS- , 100ms (64/128/256MB ESP5/10/20)- : QFP (QTM)

Shaping

- token bucket L2 overhead ( Ethernet - 14 ( src mac, dst mac, type )

- shape average peak- : QFP (QTM)


Cisco IOS XE

Embedded

Services Processor

Route Processor

SPA

Interface Processor

Control Messaging

Kernel Kernel

Kernel

QFP

Chassis

Manager

Interface

ManagerForwarding

Manager

SPA

Driver

SPA

Driver

SPA

Driver

SPA

Driver

Forwarding

Manager

Chassis

Manager

IOS

12.2SR

IOS XE Middleware

Interface

Manager

Chassis

Manager

IOS XE = IOS + IOS XE Middleware + Platform Software

- CLI IOS IOS Linux (, SNMP, CLI .. ..) 32 64 Linux

- - - ISSU Software

RP Failover

-


Cisco IOS XE

Kernel

- Linux, CPU (RP, FECP, IOCP) , , IPC

IOS

- - CLI , SNMP .. ..- , PPPoE .. ..- IOS ,

Chassis Manager

- ; OIR (active/standby)

Forwarding Manager

- FIB RP ESP, RP ESP

QFP Client/Driver

- QFP

SPA Driver

- SPA


Cisco IOS XE

,

IOS

Active

IOS

Standby

IOS XE

IOS

Active

IOS

Standby

Cisco ASR 1000

( )

IOS

Standby

IOS

Active

ISSU

1 2

IOS IOS IOS

Cisco IOS

Cisco IOS CLI

IOS XE IOS XE

OpEx,

ISSU


Cisco IOS XE -

RP Route Processor

- (control-plane)

-

ESP Embedded Service Processor

- (forwarding-

plane)

SIP SPA Interface Processor

-

SPA Shared Port Adapter

- ,

-

ESP


Cisco IOS XE

,

IOS

Active

IOS

Standby

IOS XE

IOS

Active

IOS

Standby

Cisco ASR 1000

( )

IOS

Standby

IOS

Active

ISSU

1 2

IOS IOS IOS

Cisco IOS

Cisco IOS CLI

IOS XE IOS XE

OpEx,

ISSU


Cisco IOS XE

Cisco ASR 1000

7 () Cisco IOS XE

, , ISSU In Service Software Upgrade

Cisco ASR 1000, 7 ,

RP

RPBase: RP OS

RPControl: , IOS

RPIOS

RPAccess: : 2 . SSH SSL , (RPAccess RPAccess-K9)

SIP

SIPBase: SIP OS + SIPSPA: SPA FPD (SPA FPGA )

ESP

ESPBase: ESP OS + + CPP //

+ ROM Monitor: ROM Monitor , ROMMON RP, ESP, SIP ( )


Cisco IOS XE consolidated package sub-package

Consolidated Package Sub-Package

Consolidated-package

Consolidated-package . sub-packages consolidated-package. RP sub-package

sub-package

Bootfalsh, USB TFTP

Bootflash

-

, SIPBASE, ESPBASE SIPSPA, RP.

,

ISSU Consolidated-package , RP ESP, SIP/SPA

,

IOS XE

Consolidated Package Sub-Package


Cisco IOS XE In Service Software Upgrade

ASR1002-F/ASR 1002/ASR 1004 ASR1006

RPBase Linux .

RP RP

RP. .

RPControl ISSU

ISSU RP

RPAccess ISSU

ISSU RP

RPIOS ISSU , dual mode

, IOS

RP RP

RP.

ESPBase (, NAT , , Firewall .. ..), .

, . .

(, NAT , , Firewall .. ..), ESP. .

- < 50ms; RP

SIPSPA SPA , SPA .

SPA

SPA , SPA .

SIP

SIPBase SIP , SIP .

SIP

SIP , SIP .

SIP


!

asr 1000 архитектура маршрутизаторов.pdf

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