I have this same problem. I recently added a 6th switch to a stack of 3750s and the link between the 4th and 5th switch went down:
Switch # Port 1 Port 2 -------- ------ ------ 1 Ok Ok 2 Ok Ok 3 Ok Ok 4 Ok Down 5 Down Ok 6 Ok Ok
4 to 5 just went down. Didn't mess with the cable or anything, it's just gone. Swapped cables, tightened screws, nothing helps. Afraid to restart the 6th Switch, because that would kill 5, which just so happens to have several very important servers attached to it.
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 customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...