Catalyst 3560G configuration views

[houston1910]

I recently installed 3 new switches and did some intensive port work on them. like setting duplex, speed and channel-modes to them. And I'm still fairly a newbie trying to be a CCNA one day, but I keep seeing my ports go up and down.. like ports that have regular things attached. Like Pcs and printers. Is this normal?? Also I do have a lot of traffic on these switches because everyone hits the server on a constant basis and it feels like my lights are always blinking fast... I never see traffic slow down.. is there some commands that I can use to monitor?? perhaps see what port is creating the most traffic and then set duplex or speed options to accomadate traffic?

Thanks any help would awesome.

[Shashank Singh]

Hi Samuel,

The ports may go down in case PCs connected to those ports reboot and its expected. Following are some commands that are helpful in monitoring the state of the switches:

show controller utilization: total switch bandwidth utilization

show interface | i line|rate|drop : input/output rate and drops if any. This can be used to find out which interface has max traffic.

show proc cpu sort | ex 0.0 : CPU utlization

show proc cpu hist : profile history of CPU utilization over last 1 min, 1hr, 3 days

show log: logs for all the events on the switch

show proc mem sort: DRAM utlization on switch

sh interface gi x/y: detailed information about interface rate, drops, errors, reset, timers, speed, duplex etc.

Cheers,

Shashank

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[houston1910]

Thanks for commands.

I do understand that PCs turn off, but this is happening too much. Computers arent turning off at all and its still showing the port go down then come up. I just feel like its not right.

I also have 2 of my switches interconnected using a special cisco cable that im not sure of the name now but its like a fiber transceiver. Heres the config I have, I just want to make sure it looks ok..

I have this set on switch 1 and switch 2 on ports 51 and 52

channel-group 1 mode desirable non-silent