思科核心交换机双机热备份

描述	交换机A	交换机B
配置vlan接口地址	int vlan 10 ip add 192.168.10.254 255.255.255.0 int vlan 20 ip add 192.168.20.254 255.255.255.0	int vlan 10 ip add 192.168.10.253 255.255.255.0 int vlan 20 ip add 192.168.20.253 255.255.255.0
配置虚拟地址优先级 抢占 监控上行接口（中断时切换） （standby编号可以指定其他，但为了方便一般与vlan号相同）	int vlan 10 standby 10 ip 192.168.10.252 standby 10 priority 101 standby 10 preempt standby 10 track f0/1 standby 10 track f0/2 int vlan 20 standby 20 ip 192.168.20.252 standby 20 priority 100(default) standby 20 track f0/1 standby 20 track f0/2	int vlan 10 standby 10 ip 192.168.10.252 standby 10 priority 100(default) standby 10 track f0/1 standby 10 track f0/2 int vlan 20 standby 20 ip 192.168.20.252 standby 20 priority 101 standby 10 preempt standby 20 track f0/1 standby 20 track f0/2
配置生成树，分配vlan，负载均衡	spanning-tree mode pvst spanning-tree vlan 10 root primary spanning-tree vlan 20 root secondary	spanning-tree mode pvst spanning-tree vlan 20 root primary spanning-tree vlan 10 root secondary
配置上行接口为路由接口，关闭二层交换功能	int f0/1 no switchport ip add 192.168.11.13 255.255.255.252 int f0/2 no switchport ip add 192.168.11.9 255.255.255.252	int f0/1 no switchport ip add 192.168.11.1 255.255.255.252 int f0/2 no switchport ip add 192.168.11.5 255.255.255.252
捆绑链路聚合接口	int f0/3 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode on int f0/4 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode on	int f0/3 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode on int f0/4 switchport trunk encapsulation dot1q switchport mode trunk channel-group 1 mode on
其余端口配置为trunk	int range f0/5-7 switchport trunk encapsulation dot1q switchport mode trunk switchport trunk allowed vlan all(default)	int range f0/5-7 switchport trunk encapsulation dot1q switchport mode trunk switchport trunk allowed vlan all(default)