Ethereal-users: Re: [Ethereal-users] STP issue

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From: Hansang Bae <hbae@xxxxxxxxxx>
Date: Sun, 27 Nov 2005 15:52:20 -0500
On 09:27 AM 11/27/2005, Jon Miller wrote:
>I've noticed that I have a lot of STP Conf packets every 2 seconds, I find this to be excessive, is this correct, if not any idea how to decrease the number.  I notice the Hello Time= 2, Message age = 0, Max age = 20 and Forward Delay = 15.  
>Just want to know are these settings correct?



Those are default spanning tree frames.  And one STP frame per two seconds is EXTREMELY cheap insurance.  Considering that busy subnets can move 10,000+ packets per second, it's nothing. 

One thing you should be aware of is, if you have a complex L2 topology, you should know who your root bridge is.  Lot of people map out IP subnet topology, but never L2 bridge topology.  It can be a life saver if you run into problems.

hsb