From: Albert Lu (albert_ccie@xxxxxxxxx)
Date: Sun Dec 30 2001 - 19:49:41 GMT-3
Kym,
What are the implications of not enabling STP on the TrBRF and TrCRF? I seem
to only be able to set STP for the "trbrf-default", I think I'm suppose to
be able to select the other ones from the doc.
Albert
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
kym blair
Sent: Sunday, December 30, 2001 11:54 AM
To: ccielab@groupstudy.com
Subject: VLAN config on 3920 TR Switch
Four steps are required to configure a VLAN on the 3920:
1) Configure a TrBRF (Name it "VLAN7" if you're trying to create VLAN 7,
and set the bridge number to what you want)
2) Configure a TrCRF who's parent is VLAN7 (Name it "RING2" if you're
trying to create Ring 2, and set the ring number to 2)
Configure another TrCRF (say, "RING3", ring 3) if you need two rings on this
VLAN
3) Assign ports to VLAN7 Ring 2 and VLAN7 Ring 3 (NOTE: cursor down to the
VLAN you want, then press [SPACE] to select it, as noted by an asterisk to
the left, then press [ENTER]; if you forget to press the space bar, you'll
keep selecting the wrong vlan)
4) Enable Spanning Tree: for TrBRF, set to "IBM"; for TrCRFs, set to
"IEEE"
This is best described by cisco:
http://www.cisco.com/univercd/cc/td/doc/product/lan/trsrb/scen2.pdf
The menu structure is not easy the first time; everyone needs an hour of
practice before taking the CCIE Lab Exam. If you can't afford a Catalyst
3920, you should practice with an on-line rack; another alternative is a
3920 simulator available for $95 (often on eBay for much less) at:
http://vconsole.net/
HTH, Kym
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