From: Jon Carmichael (jonc@xxxxxxxxxxx)
Date: Wed Jun 13 2001 - 21:40:49 GMT-3
You are correct in every part of your question and probably just need a
little hands-on with the 39XX switch.
If you set up the TrBRF as the parent of two TrCRFs, then yes they are
bridged by default. However the bridge will only pass Source Route frames,
and those are rare in most of our worlds. In the SNA world they are very
common, however we typically work with transparent bridging, --and that is
NOT on by default. So for our usual purposes of IP the two TrCRFs are
separate physical rings (which correspond to VLANs) and require a router
between them for any routed protocol (IP and IPX).
If you want, I know of someone who can give you access to a 39XX switch to
play with on the internet.
JONC
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Eric Wang
Sent: Wednesday, June 13, 2001 5:00 PM
To: ccielab@groupstudy.com
Subject: 3920 question
Hi,
I have no experience on 3920. I read the configuration document on cisco web
site. I found that if I want to create VLAN, I have to create TrBRF first,
then TrCRF, than VLAN. The ports on the same TrCRF belong to same ring. The
different rings connect to its parent TrBRF. Will the rings in same TrBRF be
bridged by default? If not, does 3920 support Token Ring trunk to a router?
If it does, what's the requirement and how ot do it?
Thanks
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