Cisco笔记8
HSRP:热备份路由协议（Cisco专有）
priority:级别默认100，级别越大优先级越高
preempt：可以主动做为活动路由
R1:
(config-if)#standby 1 ip 192.168.1.254
(config-if)#standby 1 priority 110
(config-if)#standby 1 preempt
(config-if)#standby 1 authentication mode text cisco
(config-if)#standby 1 track s0/0 20
-----------------------------------------------------
(config-if)#standby 2 ip 192.168.1.253
(config-if)#standby 2 preempt
(config-if)#standby 2 authentication mode text cisco
R3：
(config-if)#standby 1 ip 192.168.1.254
(config-if)#standby 1 preempt
(config-if)#standby 1 authentication mode text cisco
-----------------------------------------------------
(config-if)#standby 2 ip 192.168.1.253
(config-if)#standby 2 priority 110
(config-if)#standby 2 preempt
(config-if)#standby 2 authentication mode text cisco
(config-if)#standby 2 track s0/1 20
show standby
show standby brif
UDP 1985 224.0.0.2 TTL=1
VRRP：虚拟路由协议（国际标准）
R1:
(config)#track 100 interface s0/0 line-protocol
(config-if)#vrrp 1 ip 192.168.1.254
(config-if)#vrrp 1 priority 110
(config-if)#vrrp 1 preempt
(config-if)#vrrp 1 authentication mode text cisco
(config-if)#vrrp 1 track 100 decrement 20
-----------------------------------------------------
(config-if)#vrrp 2 ip 192.168.1.253
(config-if)#vrrp 2 preempt
(config-if)#vrrp 2 authentication mode text cisco
R3：
(config-if)#vrrp 1 ip 192.168.1.254
(config-if)#vrrp 1 preempt
(config-if)#vrrp 1 authentication mode text cisco
-----------------------------------------------------
(config)#track 100 interface s0/1 line-protocol
(config-if)#vrrp 2 ip 192.168.1.253
(config-if)#vrrp 2 priority 110
(config-if)#vrrp 2 preempt
(config-if)#vrrp 2 authentication mode text cisco
(config-if)#vrrp 2 track 100 decrement 20
show vrrp
show vrrp brif