A couple months ago, on one of my 6500 switch, ports start bouncing randomly. It happened to all the line modules. Here I am including a portion of log from the switch.Sep 22 04:02:48.479 edt: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEt...

Is there any good reasons to go to 10GIG. I have a 1-Gig data center and right now, it is running at 4% on a trunk. Anyone out there who has implemented a 10Gig before? Can you enlight me why you need to go to 10Gig?

According to cisco docs, I should be able to use XENPAK-10GB-LR, but online pricing tool only allow me to pick 10GB-LX4 and 10GB-ER.Any Clue? Thanks,

The 5500 keep sending me Topology change trap for one vlan and I am suppose that there is something wrong with that vlan. How do I find the detail out. Do I have to attach a sniffer to catch the BPDU? I mean if there is a debug command in "set IOS"TI...

Like in CatOS, sh port will tell you the speed and duplex of all ports.In a SupIII, sh int..... gives you the speed and duplex setting, but doing this one by one is too slow!TIA