下面是显示交换机端口状态的例子: 2950# show interface fastEthernet0/1 switchport Name: fa0/1 Switchport: Enabled Administrative mode: trunk Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: Disabled Access Mode VLAN: 0 ((Inactive)) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: ALL Trunking VLANs Active: 1, 2 Pruning VLANs Enabled: 2-1001 Priority for untagged frames: 0 Override vlan tag priority: FALSE Voice VLAN: none
在以上显示的信息中,端口fa0/1的链路模式被设置为(67),默认的VLAN为(68)。
68()
A.VLAN0
B.VLAN1
C.VLAN2
D.VLAN3
参考答案:B
解析:
由Operational Mode: trunk和Negotiation of Trunking: Disabled知道,该端口被设置为中继连接状态,不要求与对方建立中继连接。
交换机默认VLAN为VLAN1。