Isolate-User-Vlan、Supervlan与Hybrid

kjlily79

我的理解下，其实ISOLATE-USER-VLAN和SUPERVLAN就是HYBRID端口的2种应用。ISOLATE-USER-VLAN的Uplink端口都是Hybrid Untagged，出去的帧都被去掉TAG所以在上游交换机看来下面只有一个VLAN ID = PVID的VLAN；而SUPERVLAN的Uplink端口是Hybrid Tagged，所以出去的帧都保留了SUBVLAN的VLAN ID。

配置ISOLATE-USER-VLAN后通过display vlan可以看到交换机实际配置如下：
vlan 2
isolate-user-vlan enable
#
vlan 3
#
vlan 4
#
vlan 5
#
vlan 6
#
interface Vlan-interface1
#
interface Aux0/0
#
interface Ethernet0/1
#
interface Ethernet0/2
port link-type hybrid                    
port hybrid vlan 2 to 6 untagged
port hybrid pvid vlan 2
#
interface Ethernet0/3
port link-type hybrid
port hybrid vlan 2 to 3 untagged
port hybrid pvid vlan 3
#
interface Ethernet0/4
port link-type hybrid
port hybrid vlan 2 4 untagged
port hybrid pvid vlan 4
#
interface Ethernet0/5
port link-type hybrid
port hybrid vlan 2 5 untagged
port hybrid pvid vlan 5
#
interface Ethernet0/6
port link-type hybrid
port hybrid vlan 2 6 untagged
port hybrid pvid vlan 6                  
#
interface Ethernet0/23
#
interface Ethernet0/24
#
interface NULL0
#
isolate-user-vlan 2 secondary 3 to 6

本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/30131/showart_1192990.html