From: Geert Nijs (geert.nijs@simac.be)
Date: Sun Jul 25 2004 - 17:31:04 GMT-3
Hello,
Regarding this phenomenon, what exactly does get bridged across a DLSW cloud by default ??
Does DLSW -by default- bridge ALL Layer 2 packets, including CDP, DTP, BPDUs ?? Or is there
already some sort of filtering on DSAP/SSAP level ??
And what if my router interface are supposed to have a trunk ? You probably have to install
filters on DLSW (SNA & NETBIOS) ?
Regards,
Geert
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Dan Shechter
Sent: zondag 25 juli 2004 16:06
To: alsontra@hotmail.com
Cc: ccielab@groupstudy.com
Subject: Re: DSLW BPDU + Lab config
The problem is not only BPDU.
The problem is with DTP.
You must prevent the switches ports to trunk on the DLSW "cloud".
When you configure "sw access", the DTP wont negotiate a trunk. Actually
its enough only for one end to be configured with "sw access"
HTH,
Dan #13685
alsontra@hotmail.com wrote:
>Is there a "best way" to handle ports being used on 3350 as dlsw end points?
>Suppose you have the following setup:
>
>SW1 fa0/2---e0/0-R1-S0/0----------S0/0-R2-E0/0-----SW1 fa0/3
>
>To prevent the interface from trying to trunk or entering an err-state, I 've
>been using either bpdu-filter or sw mode access. Is there a better way to deal
>with ports receiving bpdu's due to a dlsw configuration?
>
>
>Thanks in advance,
>Alsontra
>
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