Spanning Tree

[btimberman]

I get this message "%SPANTREE-2-BPDU_SKEWING: BPDU skewed with a delay of 10 secs (max_age/2). ... " on my 6513,it hangs the connections to the switches hanging of it for a few seconds then reconnects just like nothing happened. Anyone else seen this?

[Georg Pauwen]

Hello,

here is what the Cisco Error Message Decoder says:

1. %SPANTREE-2-BPDU_SKEWING: BPDU skewed with a delay of [dec] seconds (max_age/2)

This message indicates that a BPDU for one or more VLANs or instances when MISTP is running has been skewed for a time longer than max_age/2. [dec] is the number of seconds.

Recommended Action: No action is required. To determine which VLAN has been skewed, use the show spantree bpdu-skewing command.

Recommended documents:

Spanning-Tree Protocol Enhancements using Loop Guard and BPDU Skew Detection Features

http://www.cisco.com/warp/public/473/84.html

HTH,

Georg