From: Earl Aboytes (earl@xxxxxxxxxxxx)
Date: Wed May 24 2000 - 12:09:56 GMT-3
If you source-route bridge them together, you want them in the same TrBRF.
If you don't (like dlsw) you want separate TrBRF's. That has always worked
for me.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Earl Aboytes
Senior Technical Conultant
GTE Managed Solutions
805-381-8817
earl.aboytes@telops.gte.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
jpritcha@csc.com
Sent: Wednesday, May 24, 2000 7:14 AM
To: kgalusha@cisco.com
Cc: mmsundar@yahoo.com; ccielab@groupstudy.com
Subject: Re: TokenRing Switching Configs.
So, I want to create two separate vlan's on a 3900 and route between them
with
an external router. Each vlan would support two workstations plus the
router
connection. Would I need to create two separate Brf's? And would each Brf
support one Crf? And would each Crf have 3 ports assigned?
Jim
kgalusha@cisco.com on 05/24/2000 05:40:06
Please respond to kgalusha@cisco.com
To: mmsundar@yahoo.com, ccielab@groupstudy.com
cc: (bcc: James F Pritchard/TMG/CSC)
Subject: Re: TokenRing Switching Configs.
The Brf (bridge relay function) can be thought of the as the parent and the
Crf
(concentrator function) are children associated with the parent Brf. The
Brf
is associated most closely with the logical subnet/vlan, but the physical
ports
are associated/concentrated on the Crf which, as I mentioned, is associated
with its parent Brf. This concept (Brf, Crf) is also used on the token ring
blades used on the CAT5000 family.
Kyle
At 07:20 PM 5/23/2000 -0700, Muthu Mohanasundaram wrote:
>Hi,
>
>I am studying Catalyst 3900 TokenRing switches.
>
>What forms a TokenRing VLAN?
>
>1) A TrCRF with many ports attached to it.
>2) One or more TrCRFs with a parent TrBRF.
>
>I am confused about which one will be a Logical IP
>subnet. The config giude of 3900 does not explain
>this.
>
>Can anyone give me some sample configs. I could't find
>any examples on the DOC CD.
>
>Any help would be appreciated.
>
>Thanks,
>
>Mohan.
>
>
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