From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Mueller <thomas@chaschperli.ch>
Date: Sun, 23 Nov 2008 12:26:08 +0000 (UTC)
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Subject: Re: [Bridge] bridge changes id on addif - is that normal?
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>> 
> First off the hardware address of the bridge is by default the lowest of
> all the interfaces (unless you set it). This was done by original author
> to deal with case of interfaces added out of order on boot.

ok, this would be nice if that would be mentioned on the https://
www.linuxfoundation.org/en/Net:Bridge#FAQ page. I couldn't find any 
information on how the bridge-id is evaluated on searching the internet.

i've now set it to a lower mac-addr  and now the bridge-id doesn't change 
on addif. 


> 
> The second issue is because you are making a loop in your network. If
> you had STP enabled it would probably scream at you.

ok, that is what I assuemd could be the problem. 

Thank you!

- Thomas