From: steven.j.nelson@xxxxxx
Date: Thu Apr 04 2002 - 11:27:44 GMT-3
The simplest way to do this is to have the calc handy on the PC, look at the
ring number on the drawing and do the conversion on the calc then config the
3920, so if the ring is 13 you would configure the 3920 CRTRF as 0x0d. As
for bridge numbers if you stick to between 1 and 9 the numbers in hex match
up, i.e bridge 1 is 0x01 and 2 is 0x02 and so on... Then just do you router
interfaces for SRB as you would normally.
Does this make sense ?
Thanks
Steve
-----Original Message-----
From: DAN DORTON [mailto:DHSTS68@dhs.state.il.us]
Sent: 04 April 2002 14:56
To: Parry.Chua; Guy.Lupi; Geoffrey.KIM
Cc: ccielab
Subject: RE: 3920 operation questions
3920 takes bridge numbers in hex, so be careful to convert them if given
them in decimal format.
Router Tokenring interfaces take the numbers in decimal by default, so you
can either convert them in hex, or put them in with a 0x in fromt of them &
the router will then take them as hex.
>>> "Lupi, Guy" <Guy.Lupi@eurekaggn.com> 04/03/02 07:15PM >>>
I was told today that the bridge numbers are in hex on the 3920, so you
would have to convert them. I believe the following is the proper
configuration, I am sure someone will correct me if I am wrong:
r1 (trbrf 15 trcrf 15)
source bridge ring 12
!
int to0
ip addr 6.6.6.6 255.255.255.0
multiring ip
source-bridge 15 21 12
source-bridge spanning
r2 (trbrf 15 trcrf 16)
source-bridge ring 12
!
int to0
ip addr 6.6.6.7 255.255.255.0
multiring ip
source-bridge 16 21 12
source-bridge spanning
-----Original Message-----
From: Geoffrey KIM
To: Chua, Parry; Lupi, Guy
Cc: ccielab@groupstudy.com
Sent: 4/3/2002 8:09 PM
Subject: RE: 3920 operation questions
Parry,
What's the correct configuration for the second case then? Is it:
R1 - CRF15 - BRF15
------------------
int to0
source-bridge 15 15 16
R2 - CRF16 - BRF15
------------------
int to0
source-bridge 16 15 15
?
Thanks in advance,
Geoffrey
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On
> Behalf Of Chua, Parry
> Sent: Thursday, April 04, 2002 9:47 AM
> To: Lupi, Guy; ccielab@groupstudy.com
> Subject: RE: 3920 operation questions
>
>
> Hi
>
> point:
> 1. is OK
> 2. Is incorrect, it is like a two ring attach to a bridge, it
> is in the same subnet.
> but you need to configure multiring at interface to work
> for SRB as far as IP 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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