RE: 3920 operation questions

From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Wed Apr 03 2002 - 21:46:46 GMT-3


   
Hi

point:
1. is OK
2. Is incorrect, it is like a two ring attach to a bridge, it is in the same su
bnet.
   but you need to configure multiring at interface to work for SRB as far as I
P and IPX
   is concern.
3. Is OK.

Parry Chua

-----Original Message-----
From: Lupi, Guy [mailto:Guy.Lupi@eurekaggn.com]
Sent: Wednesday, April 03, 2002 11:36 PM
To: 'ccielab@groupstudy.com'
Subject: 3920 operation questions

I have a few scenarios that I want to put out there to see if my
understanding is correct:

1. If you have 2 routers, each with a token ring interface to the 3920, and
they are placed in the same trbrf trcrf, then this is just like having an
MAU, the routers can exchange routing information and will be on the same IP
subnet. This is the default configuration.

2. If you have 2 routers, each with a token ring interface to the 3920, one
is placed in trbrf15 trcrf15, and one is placed in trbrf15 trcrf16, then the
routers will be on different ip subnets, but can do SRB. The srb
configurations would be as follows:

r1
source-bridge ring-group 12
int to0
source-bridge 15 15 12

r2
source-bridge ring-group 12
int to0
source-bridge 16 15 12

3. If you have 2 routers, each with a token ring interface to the 3920, one
is placed in trbrf15 trcrf15, and one is placed in trbrf16 trcrf16. The
routers cannot do srb, this would be just like setting up 2 vlans on a
Catalyst switch, intervlan communication is not possible.

I appreciate any comments on this, I can set up the 3920 just fine, but I am
trying to understand the effect that each setup has on srb and regular
traffic on the token ring segments that are attached.



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