You may see these errors also when you have an older device that speaks CDP v1 instead of CDP v2. Duplex info was added in CDP v2. You can turn off v2 support by doing 'no cdp advertise-v2' globally or just do a 'no cdp enable' on the interface going that this device is hanging off of. If you don't need CDP at all globally do 'no cdp run'
Thank you guys- I finally had to use the "no cdp run" - we do have a 3rd party switch on the network, that might be the problem. What is wierd though is that this just started happening and this equiptment has not changed in over a year.
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...