From: John Conzone (jkconzone@xxxxxxxx)
Date: Mon Apr 17 2000 - 18:04:41 GMT-3
Derek, translational bridging is not neccessary at all for DLSW, in
either scenario if I understand you correctly. The beauty of DLSW is that
all that is neccessary is IP connectivity (at least that is most common,
although other encaps are possible),between the end peers.
So in your first scenario, R1 needs IP connectivity to R2. In your
second scenario, R1 needs IP connectivity to R3. Thats it. You don't need
translational bridging in the middle for DLSW between R1 and R3.
What you do need is source routing enabled on the Token Ring interface
side(R1) into a virtual ring, and a bridge group, typically IEEE, applied to
the ethernet interface (R2, or R3 in the 2nd scenario) on that side and that
is piped to DLSW with the DLSW bridge group command.
----- Original Message -----
From: Derek Small (Fuse) <dwsmall@fatkid.com>
To: <ccielab@groupstudy.com>
Sent: Monday, April 17, 2000 2:10 PM
Subject: 2 DLSW questions.
> I just need a double check on these from one of the more knowledgeable
DLSW
> people.
>
> First scenario:
>
> Token ______ R1 _______Serial______ R2 _____ Ethernet segment
> Ring
>
> I do not believe translational bridging is necessary for connectivity
> between systems on the Ethernet and Token Ring segments. Is this correct.
>
> Second scenario:
>
> Ethernet
> |
> |
> Token _____R1______Serial______R2______Serial______R3______ Ethernet
> Ring |
> |
> Token
> Ring
>
> DLSW peers between R1 and R2, and between R2 and R3 are sufficient to
> provide full connectivity between the Token Ring on R1 and the Ethernet on
> R3, only if translational bridging is configured on R2. Without
> translational bridging on R2 only Ethernet to Ethernet, and Token Ring to
> Token Ring communications is possible. Is this correct?
>
> Thank You
>
> Derek Small
> dwsmall@fatkid.com
>
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