Aironet 340 Dropping Packets Intermittently

[mcrisfield]

We have an point-to-multipoint setup with three Aironet 340s. One of the 340 "clients" is having intermittent packet loss of up to 90%. When I telnet into the bridge it keeps advertising the following errors with differnet MAC addresses listed every time:

I Node 000325005075 Unkwn added for (MAC of PARENT Bridge)

I Node 00065baf4c57 Unkwn removed, staled out

Has anyone seen this before? The parent 340 is attached to a Cisco Catalyst 3550 switch but doesn't report these errors. The other client bridge is experiencing high latency and abou 3% packet loss but nothing like the bridge in question and it also doesn't report the same error. Thanks,

Michael

[murabi]

looks like the Bridge does not know the parent bridge, hence the error message.

[mcrisfield]

Actually the parent association was OK. After researching this issue I found that Backbone Node logging was enabled on this bridge which is what caused the notifications (not errors as it turns out). By default Backbone Node logging is turned off - I'm not sure why it was turned on only this particular bridge out of all of our 340s (we pay a company that specializes in wireless to maintain our wireless equipment so it may have been a mistake on their part). As it turns out the reason for packet loss was an antenna alignment issue and was totally unrelated to the notifications we were getting on the bridge. The following info taken from Cisco's documentation on the Aironet 340 describes Backbone Node logging:

Backbone Nodes (Bnodelog)

The Bnodelog parameter, if enabled, logs clients that roamed to different backbone nodes. Normally, the

bridge only logs changes in the state or location of its own radio nodes