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从Cisco Switch Dot1Q中继中意外删除的允许VLAN
我将新的VLAN添加到两个Cisco Catalyst交换机(3750)之间的现有中继端口。在添加新VLAN的过程中,似乎已经删除了中继上现有的允许VLAN。这怎么可能? 现有中继端口配置: SW-LAB-1#show run int g1/0/49 Building configuration... Current configuration : 255 bytes ! interface GigabitEthernet1/0/49 description SW-LAB-2 G1/0/48 switchport trunk encapsulation dot1q switchport trunk native vlan 10 switchport trunk allowed vlan 10,20 switchport mode trunk switchport nonegotiate ip dhcp snooping trust end 我使用以下语法也允许VLAN 30: SW-LAB-1#conf t Enter configuration …