I have a 3548 connected to a 3508 via GBIC(sX. The 3548 every 40 minutes or so it will disappear from the network for 15-20 seconds (along with everything behind it). After a couple of days of looking around I've noticed the the "sh controllers ethernet-controllers" command show 20000+ Symbol error frames. The 3508 doesn't show any error frames and a randow check of 10 other switches doesn't show symbol errore either. I think this might be the root of the problem, but I'd like to get a better understanding of what these are before contacting TAC for an fix/RMA.
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...