Hi Everyone,
I have have been investigating a strange issue that we are seeing at one of our POP sites. Here is what we have the site for topology:
Core NEtwork ---- Microwave Backhaul — Cisco NPE-G1 POP Router ---- Cisco Cat3500 Switch ---- AP1,2,3,4,5,6
There are about 15-20 APs on the tower, all of them are RB411AH using 802.11n with NV2. Aps have anywhere between 10 to 40 users on them. 90% of the time everything is working fine. We are running the APs as AP-Bridge and the customer devices as Station-WDS. This is a flat network behind the POP router for simplicity sake at this time.
What is happening is that all of a sudden all the users on say AP1 start to have traffic hammered at them 2M+ for users and the WLAN TX is say 40Mbps. When I run a packet sniff I see traffic going out to all the WDS interfaces for the same packet and same MAC. Appears like the traffic is being flooded out all the ports to find the MAC it’s looking for but that AP does not have that MAC so not sure why it’s doing this. If I look at the destination MAC and then look at the bridge host table it claims that MAC is on the Ether1 port, so my question is why would it be sending that traffic out to the subs?
Am I missing something on the configuration of the bridge or WDS setup?
If I look at the switch for the MAC addr that it shows as the destination the switch claims to have it on the port facing the effected AP.
Any suggestions would be greatly appreciated. I have seen this on numerous different 5.X revisions as well as 6.1.
Thanks