+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-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
Router(config)# redundancy 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-jsv-mz.121-11.E
- Router# copy running-config start-config
- Router# hw-module reset
- Router# redundancy force-switchover
- Router#
查看硬件信息
- Router# show hardware
- 7600能用interface range命令，(y!e!a!h!)
- Router(config-if)# interface range fastethernet 5/1 - 5, gigabitethernet 1/1 - 2
- Router(config-if)# no shutdown
- Router(config-if)#
- *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet5/1, changed state to up
- *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet5/2, changed state to up
- *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet5/3, changed state to up
- *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet5/4, changed state to up
- *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet5/5, changed state to up
- *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface GigabitEthernet1/1, changed state to up
- *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface GigabitEthernet1/2, changed state to up
- *Oct 6 08:29:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet5/5,
- changed state to up
- *Oct 6 08:29:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet5/3,
- changed state to up
- *Oct 6 08:29:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet5/4,
- changed state to up
-
- Router(config-if)#
以下交换模块支持做到入口frame最大到8092字节：
- #160;WS-X6516-GE-TX when operating at 100 Mbps
- #160;WS-X6148-RJ-45 and WS-X6148-RJ-45V
- #160;WS-X6148-RJ21 and WS-X6148-RJ21V
- #160;WS-X6248-RJ-45
- #160;WS-X6248-TEL
- #160;WS-X6248A-RJ-45
- #160;WS-X6248A-TEL
- #160;WS-X6348-RJ-45 and WS-X6348-RJ45V
- #160;WS-X6348-RJ-21 and WX-X6348-RJ21V
当配置了jumbo frame支持，这些模块丢弃大于8092字节的frame。啥是：Jumbo Frame jumbo frame是大于默认以太frame的frame。（微软拼音里没有"巾贞"这个字日！）你通过配置比默认mtu大的size,开启了jumbo frame支持,这是基于每接口的,且,得是最低是Release 12.1(13)E的IOS,在全局局域网口的mtu大小. jumbo frame在MSFC的软件中支持分段被路由流量. jumbo frame支持不分段桥接流量.
配置:
- Router# configure terminal
- Router(config)# interface gigabitethernet 1/2
- Router(config-if)# mtu 9216
- Router(config-if)# end
- Router(config)# system jumbomtu mtu_size
-
-
- When configuring the MTU size, note the following syntax information:
- •For VLAN interfaces and Layer 3 Ethernet ports, supported MTU values are from 64 to 9216 bytes.
- •For Layer 2 Ethernet ports with Release 12.1(13)E and later releases,
-
- you can configure only the global egress LAN port MTU size (see the "Configuring the
- Global LAN Port MTU Size" section).
- •For Layer 2 Ethernet ports with earlier releases, the only supported MTU size is 9216 bytes.
配置二层以太接口: 以下交换模块不支持isl封装:
- The following switching modules do not support ISL encapsulation:
-
- #160;WS-X6501-10GEX4
- #160;WS-X6502-10GE
- #160;WS-X6548-GE-TX
- #160;WS-X6548V-GE-TX
- #160;WS-X6148-GE-TX
- #160;WS-X6148V-GE-TX
操作类交换机.
