Shutdown Cisco Interface

Jan 2024

Introduction

While working with certain products, usually remotely, it is quite handy to unplug a Network Cable to test resilience (ensure that a backup route or device is used).
However, when remote this is almost impossible, so to simulate this we can just take down the relevant interface on the Cisco to simulate a cable disconnect.

Shutdown Interface

Before shutting down any interfaces, lets look a the status of the interfaces from the console. We can do this at the top level buy using this command:

sh interfaces status

You will get an output similar to below:

sh interfaces status
Port Name Status Vlan Duplex Speed Type
Gi0/1 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/2 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/3 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/4 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/5 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/6 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/7 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/8 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/9 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/10 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/11 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/12 MNGT notconnect 100 auto auto 10/100/1000BaseTX
Gi0/13 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/14 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/15 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/16 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/17 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/18 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/19 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/20 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/21 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/22 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/23 ENCtoMuxPri connected 100 a-full a-1000 10/100/1000BaseTX
Gi0/24 ENCtoMuxPri notconnect 100 auto auto 10/100/1000BaseTX
Gi0/25 ENCtoMuxSec notconnect 250 auto auto 10/100/1000BaseTX
Gi0/26 ENCtoMuxSec notconnect 250 auto auto 10/100/1000BaseTX
Gi0/27 ENCtoMuxSec notconnect 250 auto auto 10/100/1000BaseTX
Gi0/28 ENCtoMuxSec notconnect 250 auto auto 10/100/1000BaseTX
Gi0/29 ENCtoMuxSec notconnect 250 auto auto 10/100/1000BaseTX
Gi0/30 ENCtoMuxSec notconnect 250 auto auto 10/100/1000BaseTX
Gi0/31 ENCtoMuxSec notconnect 300 auto auto 10/100/1000BaseTX
Gi0/32 ENCtoMuxSec notconnect 300 auto auto 10/100/1000BaseTX
Gi0/33 ENCtoMuxSec notconnect 300 auto auto 10/100/1000BaseTX
Gi0/34 ENCtoMuxSec notconnect 300 auto auto 10/100/1000BaseTX
Gi0/35 ENCtoMuxSec notconnect 300 auto auto 10/100/1000BaseTX
Gi0/36 ENCtoMuxSec notconnect 300 auto auto 10/100/1000BaseTX
Gi0/37 MuxOut notconnect 400 auto auto 10/100/1000BaseTX
Gi0/38 MuxOut notconnect 400 auto auto 10/100/1000BaseTX
Gi0/39 MuxOut notconnect 400 auto auto 10/100/1000BaseTX
Gi0/40 MuxOut notconnect 400 auto auto 10/100/1000BaseTX
Gi0/41 MuxOut notconnect 400 auto auto 10/100/1000BaseTX
Gi0/42 MuxOut notconnect 400 auto auto 10/100/1000BaseTX
Gi0/43 MuxOut notconnect 500 auto auto 10/100/1000BaseTX
Gi0/44 MuxOut notconnect 500 auto auto 10/100/1000BaseTX
Gi0/45 MuxOut notconnect 500 auto auto 10/100/1000BaseTX
Gi0/46 MuxOut notconnect 500 auto auto 10/100/1000BaseTX
Gi0/47 MuxOut notconnect 500 auto auto 10/100/1000BaseTX
Gi0/48 MuxOut notconnect 500 auto auto 10/100/1000BaseTX