That is a BPDU. Bridge Protocol Data Unit. It is a Layer 2 protocol used to
detect topology in the layer 2 network and to prevent loops from occurring.
They are normal but can be a problem when STP (spanning tree protocol)is
turned off and you have a loop.
-----Original Message-----
From: Matt Kopf [mailto:matt@xxxxxxxxxxxxxx]
Sent: Friday, July 09, 2004 11:01 AM
To: 'Ethereal user support'
Subject: [Ethereal-users] Protocol question
When running ethereal on our LAN I get a flood of packets with protocol
0x8808. the source is 00:00:00_00:00:00 and the destination is
Spanning-tree-(for-bridges)_01. Under info it says Ethernet II.
What I am trying to find out is what device on our network is sending this
junk out so I can shut it up. I have been unable to find any useful
information on google about it. Any one know?
Matt Kopf
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