From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Fri Mar 22 2002 - 20:54:39 GMT-3
All you need is just one TrBRF and one TrCRF, assign two ports to the TrCRF.
Your bridge number don't seen right, bridge number is 1 to 15(hex 0xF), ie 4 bi
t.
The ring number is 12 bits (1-4095, or hex [1 to 0xFFF])
When you create a TrBRF, assign a bridge number, I think the default is 15(0xF)
.
WHen create a TrCRF, assign a ring number and attach to TrBRF. Now it look like
a
SRB with a ring attach to a bridge.
The default work because, it is a deafult ring attach to a default bridge and a
ll ports are assign to the default ring.
In real world, we always use decimal, when setup in Cat39xx, you have to conver
t to hex
for bridge number and ring number.
Regards
Parry
-----Original Message-----
From: Ian.C.Stong@mail.sprint.com [mailto:Ian.C.Stong@mail.sprint.com]
Sent: Saturday, March 23, 2002 3:40 AM
To: ccielab@groupstudy.com
Subject: Cat 3920 configuration question
I have a scenario with 2 token ring interfaces off two separate routers
and a 3920.
Router A - Ring 50 Router B - Ring 50 Both connected to port 1
& 2 on 3920
Using default 3920 config I can ping between each router to the other
router. After configuration I am unable to ping between routers.
I configured 3920 by creating a CrBRF with id of VLAN50 and bridge
number of 50
Then configured CrCRF 1 and CrCRF 2 with CrBRF VLAN50 as the parent.
Also assigned port 1 to CrCRF 1 and port 2 to CrCRF 2.
Left everything else default - including ring number set to auto, etc.
On the routers I only configured an IP address and ring speed on the
token ring int's.
What else is needed? Do I need to change the switch from SRB to SRT
since no workstations to create RIF's? Do I need to change the ring
setting on the switch from auto to the actual ring number of 50? Do I
need to configure sour bridge ring group on the token ring interface?
As a side question - I read on CCO that the 3920 CRF and BRF numbers are
in hex format. So if I have bridge 50 (decimal) shouldn't I configure
the switch with a value of 0x32 (yet on the router I would assign it
decimal 50?) Also same for ring numbers such that ring 50 decimal =
switch 0x32 ring number and router 50 decimal)...
Thanks in advance,
Ian
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