Quick question, I setup an iSCSI evironment using a 3750E with 2 Tengig ports. I connected the SAN to Te1/1/1 yesterday and all worked fine. Today Te1/1/1 was down and wouldn't come up. So I moved the SFP to Te1/1/2 and it came up without fail.
Te1/1/1 unassigned YES unset down down Te1/1/2 unassigned YES unset up up
Also note that you may need to take action to move a 3750E port out of errdisable status (if that's what happened to it). Any number of conditons can trigger such a status. As Leo noted, the log should provide the triggering event.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...