I have a strange thing happening with one of my switches. It is a 4507, populated with four 48 10/100/1000 port blades. All of a sudden today approximately 25% of devices attached to these ports have stopped responding to PINGs.
The ports are scattered among all 4 blades. There are no other noticeable problems either... the PCs attached to the ports are working fine and their IP addresses even show up in the switch's arp table.
I have tried shutting then unshutting the ports and have cleared the arp cache on the switch.
Not sure what to try next... Anyone seen this before?
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...