topic WISM-2 RX Multicast Queue Full in Wireless

WISM-2 RX Multicast Queue Full

netzwerkmanagement — Sun, 04 Jul 2021 06:57:15 GMT

We are running a WISM-2 controller with software release 7.2.111.3 (which unfortunately i cannot upgrade right now). There are 290 Access Points connected to the controller with up to

670 current clients.

Almost every weekday for the last two weeks (during peek times mostly) we go the message "RX Multicast Queue Full" several times. When this happens we get a lot of syslog messages from the controller as well:

Local0.Warning -Traceback: 1018e840 10627490 1060b448 10931318 119cc460 11a3256c

Local0.Warning *dtlArpTask: Apr 22 11:45:35.528: %BCAST-4-Q_ADD_FAILED: bcast_net.c:3594 Broadcast/Multicast queue add failed.

Local0.Warning -Traceback: 1091bc28 1018e7ec 10627490 1060b448 10931318 119cc460 11a3256c

Local0.Warning *dtlArpTask: Apr 22 11:45:35.528: %OSAPI-4-MSGQ_SEND_FAILED: osapi_msgq.c:518 Failed to send a message to the message queue object: BCAST-Q . enqueue failed.

At the most we got about 100.000 syslog messages just from this on a single day.

Broadcast and multicast are both disabled on the controller and everything i have found in the forums and in the system message guides seem to indicate that there is no

negative impact on performance from this.

I would really like to find out which traffic exactly causes these messages but i have not found a good way (or any way at all really) to troubleshoot this yet.

Can anybody give me some pointers or should i contact Cisco TAC and open a case for this?

Thanks in advance for any help!

WISM-2 RX Multicast Queue Full

Stephen Rodriguez — Mon, 22 Apr 2013 14:09:31 GMT

There shouldn't be any negative impact from this...but there is alwasy a chance.

take a look at the switch side config for the WiSM. Make sure you are pruning non-wireless VLANs from the portchannel

"wism slot 3 module 2 allowed vlan 100,101,102,110 etc.

HTH,
Steve

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WISM-2 RX Multicast Queue Full

netzwerkmanagement — Tue, 23 Apr 2013 09:31:55 GMT

All the non-wireless VLANS are pruned from the portchannel.

Is there any way i can find out exactly which traffic is causing this or which packets get dropped from the queue?