I submitted this question on the Network Management forum yesterday & was advised that CDP must be enabled to allow Campus Manager to discover trunk links correctly. I was advised to submit on this forum as to whether anything further can be done from a LAN switching perspective. Thanks.....Pete
We have a customer with Cat6500 VSS chassis configured with Etherchannel 802.1Q-in-Q links between Edge & Distribution switches. The distribution end of the link is configured as an IEEE802.1Q tunnel port whilst the Edge end of the link is an IEEE802.1Q trunk port (assymmetrical link).
CDP is automatically disabled for this configuration so link status on campus manager doesn't work correctly. If we enable CDP on the links then we get "native vlan mismatch" error messages. Is there a way around this other than filtering/ignoring the messages?