Refer to the exhibit .A network administrator is configuring an EtherChannel between SW1 and SW2 . The SW1 configuration is show.What is the correct configuration for SW2?
A、
Interface FastEthernet 0/1
Channel-group 1 mode active
Switchport trunk encapsulation dot1q
Switchport mode trunk
Interface FastEthernet 0/2
Channel-group 1 mode active
Switchport trunk encapsulation dot1q
Switchport mode trunk
B、
Interface FastEthernet 0/1
Channel-group 1 mode passive
Switchport trunk encapsulation dot1q
Switchport mode trunk
Interface FastEthernet 0/2
Channel-group 1 mode passive
Switchport trunk encapsulation dot1q
Switchport mode trunk
C、
Interface FastEthernet 0/1
Channel-group 1 mode desirable
Switchport trunk encapsulation dot1q
Switchport mode trunk
Interface FastEthernet 0/2
Channel-group 1 mode desirable
Switchport trunk encapsulation dot1q
Switchport mode trunk
D、
Interface FastEthernet 0/1
Channel-group 1 mode auto
Switchport trunk encapsulation dot1q
Switchport mode trunk
Interface FastEthernet 0/2
Channel-group 1 mode auto
Switchport trunk encapsulation dot1q
Switchport mode trunk
【正确答案】
C
【答案解析】
一端已经设置为auto模式,另一端必须设置为desirable模式才能协商成为trunk。
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