topic RE: MAC move seen in Cisco switch connected to Extreme in ExtremeSwitching (EXOS/Switch Engine)

MAC move seen in Cisco switch connected to Extreme

Merab_Katibashv — Mon, 09 Nov 2015 11:16:00 GMT

Okey but I have other question and I have Cisco 3650 L3 end two xos summits 430 24t connecting trunk connection. Cisco L3 say flopping extreme switch connecting ports to vlan 1. What recommend give me about that. Note: This conversation was created from a reply on: X430-24p and summitlite-16.1.2.14.xos firmware problem.

RE: MAC move seen in Cisco switch connected to Extreme

BrandonC — Mon, 09 Nov 2015 23:58:00 GMT

Hi Merab,

I am assuming this Cisco switch is reporting MAC moves. What is the MAC address that it is showing?

I have seen this in the past due to EDP or ELRP packets being seen from both switches.

-Brandon

RE: MAC move seen in Cisco switch connected to Extreme

Drew_C — Wed, 11 Nov 2015 22:19:00 GMT

Hi Merab,
Do you still need assistance with this issue?

RE: MAC move seen in Cisco switch connected to Extreme

Terry_Harcleroa — Tue, 23 Feb 2016 01:43:00 GMT

We have a CISCO 6509 reporting flapping on ports that are using Extreme switches at other end.
Mac address - 00e0.2b00.0001
What can be done to rectify this and eliminate the error clogging up our logs?

RE: MAC move seen in Cisco switch connected to Extreme

BrandonC — Tue, 23 Feb 2016 01:43:00 GMT

This is due to either EDP packets or ELRP packets, both of which are sourced from this MAC address.

I would suggest disabling EDP on the ports that connect to non-EXOS switches. If this is due to ELRP and you do not want to disable it on those ports, you may want to see if it is possible to exclude a specific log message from the Cisco's log buffer.

RE: MAC move seen in Cisco switch connected to Extreme

Drew_C — Tue, 23 Feb 2016 01:43:00 GMT

Agreed. You can disable EDP on the ports connecting to the Cisco with the disable edp ports command.

RE: MAC move seen in Cisco switch connected to Extreme

Henrique — Tue, 23 Feb 2016 01:54:00 GMT

Hi Terry, this MAC address is used by EDP (Extreme Discovery Protocol).

Since your are connecting those ports to a Cisco device, you can disable EDP on specific ports with disable edp ports command.

You can also check the GTAC Knowledge link below for details:

https://gtacknowledge.extremenetworks.com/articles/Q_A/Why-are-my-non-Extreme-devices-reporting-link...

RE: MAC move seen in Cisco switch connected to Extreme

Terry_Harcleroa — Tue, 23 Feb 2016 02:16:00 GMT

Many thanks! Much appreciated