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Go to the main interface and you can remove sub interface as below..Main interface- Gi0/0/0Sub interfaces- Gi0/0/0.1, Gi0/0/0.2 and Gi0/0/0.3Now go through the command as below..Router(config-if)#int gi0/0/0Router(config-if)#no interface gi0/0/0.3and...
Go to the main interface and you can remove sub interface as below..Main interface- Gi0/0/0Sub interfaces- Gi0/0/0.1, Gi0/0/0.2 and Gi0/0/0.3Now go through the command as below..Router(config-if)#int gi0/0/0Router(config-if)#no interface gi0/0/0.3and...
