SPAN
只能在同一台交换机上配置
monitor session 1 source vlan 1 both
monitor session 1 destination interface fastEthernet 0/1
show monitor
RSPAN
将某台交换机的端口或者vlan的流量复制到其它交换机的某个端口,需要在中间交换机上配置RSPAN vlan,并且trunk链路允许此vlan通过
源交换机
vlan 100
name span-vlan
remote-span
monitor session 1 source interface f0/7
monitor session 1 destination remote vlan 100
中间交换机
vlan 100
name span-vlan
remote-span
目标交换机
vlan 100
name span-vlan
remote-span
monitor session 2 source remote vlan 100
monitor session 2 destination interface f0/8
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ccna