To check which ports are active or disable on a Cisco switch we need to use the status command and follow the steps below.
1. Log on to the router.
2. Type “show interfaces status” command
Example:
SWITCH1#sh interfaces status
Port Name Status Vlan Duplex Speed Type
Gi0/1 connected 24 a-full a-1000 10/100/1000BaseTX
Gi0/2 connected 24 a-full a-1000 10/100/1000BaseTX
Gi0/3 disabled 24 auto auto 10/100/1000BaseTX
Gi0/4 disabled 24 auto auto 10/100/1000BaseTX
Gi0/5 disabled 24 auto auto 10/100/1000BaseTX
Gi0/6 connected 24 a-full a-100 10/100/1000BaseTX
Gi0/7 connected 23 a-full a-1000 10/100/1000BaseTX
Gi0/8 connected 23 a-full a-100 10/100/1000BaseTX
Gi0/9 connected 22 a-full a-1000 10/100/1000BaseTX
Gi0/10 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/11 connected 27 a-full a-1000 10/100/1000BaseTX
Gi0/12 connected 26 a-full a-1000 10/100/1000BaseTX
Gi0/13 disabled 26 auto auto 10/100/1000BaseTX
Gi0/14 connected 26 a-full a-100 10/100/1000BaseTX
Gi0/15 connected 22 a-full a-1000 10/100/1000BaseTX
Gi0/16 notconnect 27 auto auto 10/100/1000BaseTX
Gi0/17 connected 22 a-full a-1000 10/100/1000BaseTX
Gi0/18 notconnect 25 auto auto 10/100/1000BaseTX
Gi0/19 connected 25 a-full a-1000 10/100/1000BaseTX
Gi0/20 connected 25 a-full a-1000 10/100/1000BaseTX
Gi0/21 disabled 1 auto auto Not Present
Gi0/22 disabled 1 auto auto Not Present
Gi0/23 connected trunk a-full a-1000 1000BaseLX SFP
Gi0/24 connected trunk a-full a-1000 1000BaseLX SFP
Po1 connected trunk a-full a-1000
In order for us to enable or disable a port on a Cisco switch do the following:
To Enable a Port Type:
SWITCH1# int Gi0/2
SWITCH1# no shutdown
To disable a port Type:
SWITCH1#int Gi0/2
SWITCH1#shutdown\0