Unable to Add IPmc sender : Entry exists

[Fauriant_Trista]

Hello all!

I've some trouble on a x460 compound stack (L2 only, 2 * x460 -24p with XGM3-2SF and SummitStack necessarily), since a while this error appears in the log:

07/27/2015 06:26:58.95 Slot-1: Unable to Add IPmc sender entry s,G,v=10.92.XX.X2,224.0.0.18,2259 IPMC 1 flags 4 unit 0, Entry exists
07/27/2015 06:25:32.94 Slot-1: Unable to Add IPmc sender entry s,G,v=10.92.XX.X2,224.0.0.18,2259 IPMC 1 flags 4 unit 0, Entry exists
07/27/2015 06:24:05.92 Slot-1: Unable to Add IPmc sender entry s,G,v=10.92.XX.X2,224.0.0.18,2259 IPMC 2 flags 4 unit 0, Entry exists

This stack is linked to two x670 in MLAG mode, the two x670 are sharing the 10.92.XX.X1 LAN for VRRP nexthop, their respective addresses are 10.92.XX.X2 et 10.92.XX.X3. The stack is not involved in the VRRP exchange.

I searched in the GTAC knowledge base and I found the following issue : https://extremeportal.force.com/ExtrArticleDetail?an=000075055

A reboot can solve the problem, for a while...

My stack is in 15.5.3.4 p1-2 version (as my x670) and it seems that the correction has been placed in the 15.5.2 so i supposed that 15.5.3.4 p1-2 inherited of this correction, right ?

Somebody has encountered the same issue or solved this ?

Thanks in advance,
Tristan.

[Paul_Russo]

Hello Tristan

Not necessarily. Even though the build of code is newer than 15.5.2 the fix may not be in there. It all depends on if the fix was able to make it into that build of code.

Some things to check 1) the release notes of the build of code. look for the CR xos0057375 issues as being resolved, 2) load one of the versions of code that is listed in the knowledge base article or 3) call GTAC and verify.

Hope that helps
P