When working on Linux, you might not always be able to see which user you are logged in as by default, or perhaps you want confirmation before making a change. Thankfully, find out is very simple and is done using a one word command which will instantly output the username …
On Cisco Layer 3 devices, the Show IP Route command tells us about all the L3 routes the device knows about (though you will have to specify the VRF if you are using that too). Let’s take a look at the sample output below, taken kindly and slightly adapted from …
An essential factor in troubleshooting LAN connectivity is by first ensuring that the physical connections are functional. When it comes to a Layer 2 network, this means the Switches, the Ports and the Ethernet cables that connect them all together. For the Ethernet cable side of things, we usually have …
On a Cisco Device, the Configuration Register (often referred to and listed in the configuration as ‘confreg’) is a value which tells the device which software to load and run. We can check with the ‘show version’ command what the device is currently set to. See the example output below: …
When installing or upgrading the IOS on a Cisco Switch, there are 2 modes we should be aware of. Bundle Mode and Install Mode. As you’ve likely guessed, these are simply different methods of installing the Cisco IOS, but the difference is important. As newer IOS updates get released, the …