hondabuff
02-18-2012, 09:19 AM
So I had an issue at work the other day where my Avaya Call manager Server kepts loosing ip connectivity and we where loosing phones in the School. A contractor for the school installed the server and set it it up and gave me instructions from his engineer to hard code the ports to 100/full and the needed a vlan created and trunked down to the main building. No problem. I just installed 30 Enterasys C5 switches over the summer because the Cisco bid was wayyyy too much money. The Enterasys IOS is very similar to Cisco's and I fell in love with the command "show port status" which gives you a quick snap shot of the speed and duplex settings and the port state. Even though I hard coded the ports to 100/full, they kept showing half. Ended up being a duplex mismatch from the servers nics being left on Auto/Auto. Saved the day and all is well. Then I got to thinking, why does Cisco no have a command like this. Everyone knows the "sho ip int brief" and "show int fa0/xx" commands that will tell you the same thing but not all in one shot. So I was watching the Cisco Press Video Mentor for CCNP switch and first video, it smacked me in the face....BAMMM! "Show interfaces status" Looks almost identical to the Enterasys version. I was excited.. being that I just went through all of ICND1/ICND2 and never heard of this unicorn. Jumped on packet Tracer all excited and nothing!!
Jumped on CCNA Network Visualizer and Nothing!! Of course GNS3 doesnt do any thing unless you install a switch module into a router so I skipped it and went directly to my Lab and fired up the 3560 switch and entered the command and there it was in all its glory, Status of the port, What Vlan its assigned to, Duplex, Speed and what Type 10/100/1000TX or SFP. So there it was, a hidden command thats not replicated on Emulators but only on real equipment. I did a search and found some more info on it and its super helpful for trouble shooting duple mismatches.
"Show Interfaces status"
http://www.packet-lab.com/main/routing-and-switching/ccnp/item/117-cool-cisco-ios-commands-show-interfaces-status.html
Jumped on CCNA Network Visualizer and Nothing!! Of course GNS3 doesnt do any thing unless you install a switch module into a router so I skipped it and went directly to my Lab and fired up the 3560 switch and entered the command and there it was in all its glory, Status of the port, What Vlan its assigned to, Duplex, Speed and what Type 10/100/1000TX or SFP. So there it was, a hidden command thats not replicated on Emulators but only on real equipment. I did a search and found some more info on it and its super helpful for trouble shooting duple mismatches.
"Show Interfaces status"
http://www.packet-lab.com/main/routing-and-switching/ccnp/item/117-cool-cisco-ios-commands-show-interfaces-status.html