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What is the difference between there has (config-if) and not in Cisco IOS?

(config-if) explaination

Above is a snapshot of a Cisco 2960 Switch. I don't know what's the meaning of the (config-if) there.

2 Answers 2

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(config-if) simply means you're in "Interface Configuration" mode, i.e. you did something like

Central(config)#interface Gi0/1
Central(config-if)#interface Gi0/1

while in "Global Configuration Mode" (i.e. the simple (config)).

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That's mean it is under the configure mode, and configuring a interface.

in your scenario, you type configure, it will enter configure mode.

it will become:

Central(config)#

if again enter interface FastEthernet0/1, it will become:

Central(config-if)#

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