RPR RPR+ SSO 等切换方式的比较
当前主要有HSA,RPR,RPR+,SSO四种冗余模式,HSA模式太老现在已经少用了和RPR模式差不多。RPR和RPR+的区别是:RPR模式的Standby 引擎板是半初始化的。当主控板失效后, Standby 引擎板接管主控GRP板再读取并加载配置文件,同时还会重启所有板卡;而RPR+模式是完全初始化的,所有配置文件会随Standby 引擎板的启动而同步,当Standby 引擎接管主控板的任务后并不需要重启所有板卡。所以RPR+比RPR模式具有更高的冗余性能。而SSO冗余模式比是在RPR+的基础上增加了对线卡,各种协议,以及一些其他应用的同步支持,真正实现了“热备份”功能。
配置时的注意点:
1、native ios支持
Release 12.1(13)E and later releases support supervisor engine redundancy with Route Processor Redundancy (RPR) and Route Processor Redundancy Plus (RPR+). This chapter describes how to configure supervisor engine redundancy with RPR and RPR+.
2、配置时候需要两个引擎需要有一样的IOS,一样的硬件
1、native ios支持
Release 12.1(13)E and later releases support supervisor engine redundancy with Route Processor Redundancy (RPR) and Route Processor Redundancy Plus (RPR+). This chapter describes how to configure supervisor engine redundancy with RPR and RPR+.
2、配置时候需要两个引擎需要有一样的IOS,一样的硬件
下面一段话摘自烦尘子的BLOG:
Native with RPR and RPR+
Route processor redundancy 提供2~4分钟的快速Failover,Failover后安装的模块需要reset。
Route processor redundancy+ 提供30~60秒的快速Failover,Failover后安装的模块不需要reset。
要求版本12.1(13)E或更高。
Native SRM with SSO
可以实现1秒或多一些的快速Failover,但仅能支持SUP720和Unicast流量。可以支持二层协议如:link negotiation,VLANs, VTP,DTP,STP,PAgP/LACP,CDP,UDLD,SPAN,voice VLAN,inline power,IGMP snooping 。但不支持三层路由协议的冗余。要求版本12.2(17b)SXA或更高。
Native NSF with SSO
可以实现1秒或多一些的快速Failover,可以支持SUP2和SUP720,Unicast和Multicast(仅SUP720)都可以支持。可以支持二层协议如:link negotiation,VLANs,VTP,DTP,STP,PAgP/LACP,CDP,UDLD,SPAN,voice VLAN,inline power,IGMP snooping 。可以支持三层路由协议的冗余如BGP,OSPF,IS-IS,EIGRP。要求版本12.2(18)SXD或更高。
Native with RPR and RPR+
Route processor redundancy 提供2~4分钟的快速Failover,Failover后安装的模块需要reset。
Route processor redundancy+ 提供30~60秒的快速Failover,Failover后安装的模块不需要reset。
要求版本12.1(13)E或更高。
Native SRM with SSO
可以实现1秒或多一些的快速Failover,但仅能支持SUP720和Unicast流量。可以支持二层协议如:link negotiation,VLANs, VTP,DTP,STP,PAgP/LACP,CDP,UDLD,SPAN,voice VLAN,inline power,IGMP snooping 。但不支持三层路由协议的冗余。要求版本12.2(17b)SXA或更高。
Native NSF with SSO
可以实现1秒或多一些的快速Failover,可以支持SUP2和SUP720,Unicast和Multicast(仅SUP720)都可以支持。可以支持二层协议如:link negotiation,VLANs,VTP,DTP,STP,PAgP/LACP,CDP,UDLD,SPAN,voice VLAN,inline power,IGMP snooping 。可以支持三层路由协议的冗余如BGP,OSPF,IS-IS,EIGRP。要求版本12.2(18)SXD或更高。
--------------------------------------------------------------------参考配置
show bootvar
EHSA standby 模式提供以下特性:
+自动启动,且在active和冗余超级引擎之间bootvar同步。
+在超级引擎的active和冗余状态检测和决定硬件信号。
+每60秒从active往冗余超级引擎进行时钟同步。
+一个冗余超级引擎是启动的,但是不是所有子系统都up,如果
active的超级引擎挂了,冗余超级引擎变成全可操作。
+一个可操作的超级引擎表现为取代失效单元变为冗余超级引擎。
配置和现实RPR+ :
Router> enable
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# redundancy
Router(config-red)# mode rpr-plus
Router(config-red)# ^Z
Router# show redundancy states
重新启动默认的自动同步:
Router(config)# redundancy
Router(config-red)# main-cpu
Router(config-r-mc)# auto-sync standard
Router(config-r-mc)# auto-sync bootvar
Router(config-r-mc)# end
Router# copy running-config startup-config
关闭自动同步,只打开配置active超级引擎寄存器的自动同步
Router(config)# redundancy
Router(config-red)# main-cpu
Router(config-r-mc)# no auto-sync standard
Router(config-r-mc)# auto-sync config-register
Router(config-r-mc)# end
Router# copy running-config startup-config
显示冗余状态:
Router# show redundancy states
This example 如何perform FSU:
Router# config terminal
Router(config)# config-register 0x2
Router(config)# boot system flash slot0: c6sup22-sv-mz.121-11.E
Router# copy running-config start-config
Router# hw-module reset
Router# redundancy force-switchover ----------------强行切换
show bootvar
EHSA standby 模式提供以下特性:
+自动启动,且在active和冗余超级引擎之间bootvar同步。
+在超级引擎的active和冗余状态检测和决定硬件信号。
+每60秒从active往冗余超级引擎进行时钟同步。
+一个冗余超级引擎是启动的,但是不是所有子系统都up,如果
active的超级引擎挂了,冗余超级引擎变成全可操作。
+一个可操作的超级引擎表现为取代失效单元变为冗余超级引擎。
配置和现实RPR+ :
Router> enable
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# redundancy
Router(config-red)# mode rpr-plus
Router(config-red)# ^Z
Router# show redundancy states
重新启动默认的自动同步:
Router(config)# redundancy
Router(config-red)# main-cpu
Router(config-r-mc)# auto-sync standard
Router(config-r-mc)# auto-sync bootvar
Router(config-r-mc)# end
Router# copy running-config startup-config
关闭自动同步,只打开配置active超级引擎寄存器的自动同步
Router(config)# redundancy
Router(config-red)# main-cpu
Router(config-r-mc)# no auto-sync standard
Router(config-r-mc)# auto-sync config-register
Router(config-r-mc)# end
Router# copy running-config startup-config
显示冗余状态:
Router# show redundancy states
This example 如何perform FSU:
Router# config terminal
Router(config)# config-register 0x2
Router(config)# boot system flash slot0: c6sup22-sv-mz.121-11.E
Router# copy running-config start-config
Router# hw-module reset
Router# redundancy force-switchover ----------------强行切换
ATM接口模块
ATM接口模块
1,ATM接口模块速率有
DS1 1.544Mbit/s
E1 2.048Mbit/s
DS2 6.312Mbit/s
E2 8.448Mbit/s
E3 34.368Mbit/s
DS3 44.736Mbit/s
E4 139.264Mbit/s
STM-1 155.52Mbit/s(与STS-3相同)
STM-4 622.08Mbit/s(与STS-12相同)
STM-12 2.5Gbit/s(与STS-48相同)STM-48 10Gbit/s(与STS-192相同)
ATM25 25Mbit/s
2,7300 到2600 的典型ATM模块有:
7300
7300-2OC3ATM-MM 2-port OC3 ATM line card for Cisco 7300
7300-2OC3ATM-SMI 2-port OC3 ATM line card for Cisco 7300 Single-mode Intermediate Reach
7300-2OC3ATM-SML 2-port OC3 ATM line card for Cisco 7300 Single-mode Long Reach
7200 系列有四种ATM端口适配卡,分别是ATM端口适配卡,增强型ATM端口适配器,多端口T1/E1 IMA端口适配器
ATM端口适配卡
PA-A1-OC3MM;
增强型ATM端口适配器
PA-A6-OC3MM 1-port ATM OC-3c/STM-1 multimode port adapter, enhanced
PA-A6-OC3SMI 1-port ATM OC-3c/STM-1 single-mode (IR) port adapter, enhanced
PA-A6-OC3SML 1-port ATM OC-3c/STM-1 single-mode (LR) port adapter, enhanced
PA-A6-T3 1-port ATM DS3 port adapter, enhanced
PA-A6-E3 1-port ATM E3 port adapter, enhanced
PA-A3-OC12SM 1-port ATM OC-12c/STM-4 single-mode port adapter, enhanced
PA-A3-T3 1-port ATM DS3 port adapter, enhanced
PA-A3-E3 1-port ATM E3 port adapter, enhanced
PA-A3-OC3MM 1-port ATM OC-3c/ST-1 multimode port adapter, enhanced
PA-A3-OC3SMI 1-port ATM OC-3c/STM-1 single-mode (IR) port adapter, enhanced
PA-A3-OC3SML 1-port ATM OC-3/STM-1 single-mode (LR) port adapter, enhanced
PA-A3-OC12SM 1-port ATM OC-12c/STM-4 single-mode port adapter, enhanced
PA-A3-T3 1-port ATM DS3 port adapter, enhanced
PA-A3-E3 1-port ATM E3 port adapter, enhanced
PA-A3-OC3MM 1-port ATM OC-3c/ST-1 multimode port adapter, enhanced
PA-A3-OC3SMI 1-port ATM OC-3c/STM-1 single-mode (IR) port adapter, enhanced
PA-A3-OC3SML 1-port ATM OC-3/STM-1 single-mode (LR) port adapter, enhanced
多端口T1/E1 IMA端口适配器
PA-A3-8T1IMA Eight-port T1 ATM port adapter with IMA
PA-A3-8E1IMA Eight-port E1 ATM port adapter with IMA
3800
NM-1A-T3 1-port DS-3 ATM network module
NM-1A-E3 1-port E3 ATM network module
NM-4T1-IMA 4-port T1 ATM network module with Inverse Multiplexing over ATM (IMA)
NM-4E1-IMA 4-port E1 ATM network module with IMA
NM-8T1-IMA 8-port T1 ATM network module with IMA
NM-8E1-IMA 8-port E1 ATM network module with IMA
3600
NM-1A-OC3MM Single port ATM OC-3 Multimode network module for 3600
NM-1A-OC3SMI Single port ATM OC-3 Singlemode Intermediate Reach NM
NM-1A-OC3SML Single port ATM OC-3 Singlemode Long Reach Network Module
NM-1A-DS3 1-Port DS3 ATM Network Module
NM-1A-E3 1-Port E3 ATM Network Module
NM-4T1-IMA 4-port T1 ATM Network Module with IMA
NM-4E1-IMA 4-port E1 ATM Network Module with IMA
NM-8T1-IMA 8-port T1 ATM Network Module with IMA
NM-8E1-IMA 8-port E1 ATM Network Module with IMA
2800
NM-1A-T3 1-port DS-3 ATM network module
NM-1A-E3 1-port E3 ATM network module
2600
NM-1A-OC3MM Single port ATM OC-3 Multimode network module for 3600
NM-1A-OC3SMI Single port ATM OC-3 Singlemode Intermediate Reach NM
NM-1A-OC3SML Single port ATM OC-3 Singlemode Long Reach Network Module
NM-1A-T3 1-Port DS3 ATM Network Module
NM-1A-DS3 1-Port E3 ATM Network Module
NM-1ATM-25 One port ATM 25Mbps network module
NM-4T1-IMA 4-port T1 ATM Network Module with IMA
NM-4E1-IMA 4-port E1 ATM Network Module with IMA
NM-8T1-IMA 8-port T1 ATM Network Module with IMA
NM-8E1-IMA 8-port E1 ATM Network Module with IMA
3,2600以上的路由器都支持ATM模块。
1,ATM接口模块速率有
DS1 1.544Mbit/s
E1 2.048Mbit/s
DS2 6.312Mbit/s
E2 8.448Mbit/s
E3 34.368Mbit/s
DS3 44.736Mbit/s
E4 139.264Mbit/s
STM-1 155.52Mbit/s(与STS-3相同)
STM-4 622.08Mbit/s(与STS-12相同)
STM-12 2.5Gbit/s(与STS-48相同)STM-48 10Gbit/s(与STS-192相同)
ATM25 25Mbit/s
2,7300 到2600 的典型ATM模块有:
7300
7300-2OC3ATM-MM 2-port OC3 ATM line card for Cisco 7300
7300-2OC3ATM-SMI 2-port OC3 ATM line card for Cisco 7300 Single-mode Intermediate Reach
7300-2OC3ATM-SML 2-port OC3 ATM line card for Cisco 7300 Single-mode Long Reach
7200 系列有四种ATM端口适配卡,分别是ATM端口适配卡,增强型ATM端口适配器,多端口T1/E1 IMA端口适配器
ATM端口适配卡
PA-A1-OC3MM;
增强型ATM端口适配器
PA-A6-OC3MM 1-port ATM OC-3c/STM-1 multimode port adapter, enhanced
PA-A6-OC3SMI 1-port ATM OC-3c/STM-1 single-mode (IR) port adapter, enhanced
PA-A6-OC3SML 1-port ATM OC-3c/STM-1 single-mode (LR) port adapter, enhanced
PA-A6-T3 1-port ATM DS3 port adapter, enhanced
PA-A6-E3 1-port ATM E3 port adapter, enhanced
PA-A3-OC12SM 1-port ATM OC-12c/STM-4 single-mode port adapter, enhanced
PA-A3-T3 1-port ATM DS3 port adapter, enhanced
PA-A3-E3 1-port ATM E3 port adapter, enhanced
PA-A3-OC3MM 1-port ATM OC-3c/ST-1 multimode port adapter, enhanced
PA-A3-OC3SMI 1-port ATM OC-3c/STM-1 single-mode (IR) port adapter, enhanced
PA-A3-OC3SML 1-port ATM OC-3/STM-1 single-mode (LR) port adapter, enhanced
PA-A3-OC12SM 1-port ATM OC-12c/STM-4 single-mode port adapter, enhanced
PA-A3-T3 1-port ATM DS3 port adapter, enhanced
PA-A3-E3 1-port ATM E3 port adapter, enhanced
PA-A3-OC3MM 1-port ATM OC-3c/ST-1 multimode port adapter, enhanced
PA-A3-OC3SMI 1-port ATM OC-3c/STM-1 single-mode (IR) port adapter, enhanced
PA-A3-OC3SML 1-port ATM OC-3/STM-1 single-mode (LR) port adapter, enhanced
多端口T1/E1 IMA端口适配器
PA-A3-8T1IMA Eight-port T1 ATM port adapter with IMA
PA-A3-8E1IMA Eight-port E1 ATM port adapter with IMA
3800
NM-1A-T3 1-port DS-3 ATM network module
NM-1A-E3 1-port E3 ATM network module
NM-4T1-IMA 4-port T1 ATM network module with Inverse Multiplexing over ATM (IMA)
NM-4E1-IMA 4-port E1 ATM network module with IMA
NM-8T1-IMA 8-port T1 ATM network module with IMA
NM-8E1-IMA 8-port E1 ATM network module with IMA
3600
NM-1A-OC3MM Single port ATM OC-3 Multimode network module for 3600
NM-1A-OC3SMI Single port ATM OC-3 Singlemode Intermediate Reach NM
NM-1A-OC3SML Single port ATM OC-3 Singlemode Long Reach Network Module
NM-1A-DS3 1-Port DS3 ATM Network Module
NM-1A-E3 1-Port E3 ATM Network Module
NM-4T1-IMA 4-port T1 ATM Network Module with IMA
NM-4E1-IMA 4-port E1 ATM Network Module with IMA
NM-8T1-IMA 8-port T1 ATM Network Module with IMA
NM-8E1-IMA 8-port E1 ATM Network Module with IMA
2800
NM-1A-T3 1-port DS-3 ATM network module
NM-1A-E3 1-port E3 ATM network module
2600
NM-1A-OC3MM Single port ATM OC-3 Multimode network module for 3600
NM-1A-OC3SMI Single port ATM OC-3 Singlemode Intermediate Reach NM
NM-1A-OC3SML Single port ATM OC-3 Singlemode Long Reach Network Module
NM-1A-T3 1-Port DS3 ATM Network Module
NM-1A-DS3 1-Port E3 ATM Network Module
NM-1ATM-25 One port ATM 25Mbps network module
NM-4T1-IMA 4-port T1 ATM Network Module with IMA
NM-4E1-IMA 4-port E1 ATM Network Module with IMA
NM-8T1-IMA 8-port T1 ATM Network Module with IMA
NM-8E1-IMA 8-port E1 ATM Network Module with IMA
3,2600以上的路由器都支持ATM模块。