Input flow-control is off, output flow-control is off Switch0# show interfaces FastEthernet 0/1įastEthernet0/1 is up, line protocol is up (connected) Now if you want to dive deeper in the counters for each physical interface, we can be more specific as shown below:
CISCO SHOW MAC ADDRESS ON PORT UPDATE
The above gives me a quick status update of each available interface on the switch, on which VLAN it belongs, speed settings etc. I usually start first with the following command:įa0/4 notconnect 1 auto auto 10/100BaseTXįa0/5 notconnect 1 auto auto 10/100BaseTXįa0/6 notconnect 1 auto auto 10/100BaseTXįa0/7 notconnect 1 auto auto 10/100BaseTXįa0/8 notconnect 1 auto auto 10/100BaseTX On a Layer 2 switch we can check the status and various other counters and metrics for each physical ethernet interface or for every interface on the device. Here is the topology used to gather the various output data for each device in this article: In this article we will discuss and explain the “ show interface” command on both routers and switches, so let’s get started.
This command works on both Cisco Switches and Cisco Routers and has the same functionality on both types of devices. It can be very useful at troubleshooting connectivity issues and physical port issues, check the status of physical ports, watch how much traffic is passing through the interface, which IP address is assigned to the interface (for Layer3 interfaces) etc.
One of the most useful and popular commands used on Cisco devices is the “ show interface” command.
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