From: Manny Gonzalez (gonzalu@xxxxxxx)
Date: Mon Mar 18 2002 - 19:39:30 GMT-3
If doing true SRB (Source Route Bridging) and connected to the 3920,
remember to turn on SRB on the routers, otherwise no go:
Interface TokenRing 0
multiring all (or multiring ip, or multiring ipx, you get the idea)
For transparent (SRT) you can just plain old SRB and SPANNING explorers
under the interface. For purely SNA traffic, I do not believe you need
spanning explorers. But, when in doubt, ask the proctor what is the best
course of action is my opinion.
For translational you must do the global command:
source-bridge transparent 20 3 4 1
where
10 is the source-bridge ring-group
3 is a pseudo ring
4 is a dummy bridge to the Transparent Bridge
1 is the actual transparent bridge
All this for DLSw, yes :-)
One more thing. If you are doing RIF passthrough, make sure your VIRTUAL
RING is the same on both ends of the peering relationship. Or it will
not work (I assume it behaves just like RSRB)
Frank B wrote:
>
> Guy,
> You also need the source-bridge spanning command on the token
> ring interface. This command enables spanning tree explorers. I assume
> you're testing using a windows workstation and enabling netbeui on you
> NIC. If so, you MUST enable spanning tree explorers to see the shares
> across the network if you use SRB.
>
> On your other comment, YES! You need SRB commands with token ring
> interfaces in DLSW. The router uses SRB to get from the physical ring
> through the "bridge" to the virtual-ring you created with the command:
>
> Source-bridge 1 1 12
>
> DLSW picks it up from the virtual ring.
>
> And lastly, this WILL work with the transparent bridging commands as you
> suspect. Try it out man...post your results to the group.
>
> Aloha, Frank
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Lupi, Guy
> Sent: Monday, March 18, 2002 5:31 AM
> To: 'ccielab@groupstudy.com'
> Subject: DLSW and Source Bridge
>
> In documents that I have seen, it shows that on a token ring router
> running
> dlsw, all that is required is a source-bridge command i.e.
> "source-bridge
> ring-group 12", and on the interface "source-bridge 1 1 12" linking the
> interface to the virtual ring. I set up dlsw between a token ring
> router
> and an ethernet router, I don't have a token ring workstation so I set
> up
> one router with ethernet and token ring as a transparent bridge as seen
> below. But it didn't work like I thought. I could not get it to work
> with
> the source bridge commands, but when I made the token ring interface
> part of
> a bridge group and put in the dlsw bridge-group command, it worked with
> no
> problem, I could find the other workstation and transfer files. I have
> also
> seen configs where an ethernet router has a source bridge command when
> peering with a dlsw token ring router. When do we use the source bridge
> commands in dlsw, are they really necessary, or can it be done just
> using
> bridge groups? I included an ASCII drawing of what I had set up below,
> maybe the source bridge commands didn't work because I had this setup
> with
> the transparent bridge?
>
>
>
> workstation--------e0-------r1----/\/\/\----r3------------to0--------to0
> ----
> -----------r6--------------------e0--------workstation
>
> (Transparent bridge)
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