In one of our buildings we have a number of 4500 switches to provide LAN connectivity to users and we are running out of ports. Rather then buying more blades or switches I would like to reuse some ports. So my question is how to tell if a port has not been used in say 4 weeks (to allow for vacations)?
I had thought of clearing the counters and then just coming back in 4 weeks and looking through them but we are talking about 6 4500s with 5 48 port blades in each, that's 1440 ports!
smodoneel is correct , a show interface link command will show you how long a port has been down so if you have a port that has been down 2 or 3 months if the switch hasn't gone down in that period you can probably surmise the port is not being used . The weird thing is i think only the 4500's have this command and not other IOS devices , it would be usueful occasionally on all switches.
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