Re: Bridging over frame relay cloud.

From: fwells12 (fwells12@xxxxxxxxxxx)
Date: Wed Dec 27 2000 - 13:25:11 GMT-3


   
Thanks for your reply Ronnie,
There are routers at the edge of the frame cloud on all four egress points.
The e-nets are on the far sides of the routers. The ingress interfaces are
all on the same subnet.

I think it may be a problem with either spanning tree and the bridge
priority issue. I am working on some different labs right now but will take
another look at this later.

----- Original Message -----
From: Ronnie Royston <RonnieR@globaldatasys.com>
To: 'fwells12' <fwells12@hotmail.com>
Sent: Wednesday, December 27, 2000 7:57 AM
Subject: RE: Bridging over frame relay cloud.

> You indicated that each ethernet has its own subnet. The e-nets must be
on
> the same subnet for layer 2 connectivity w/out a (layer 3) router.
>
> -----Original Message-----
> From: fwells12 [mailto:fwells12@hotmail.com]
> Sent: Saturday, December 23, 2000 10:46 PM
> To: ccielab@groupstudy.com
> Subject: Bridging over frame relay cloud.
>
>
> Hey guys, the archives were no help thus far...
>
> Here's the setup:
>
> Fully meshed frame cloud with four routers connected using LMI. Each =
> router has an ethernet segment with a unique network. Serial interfaces =
> are all on one subnet, and could ping each other fine (expected result) =
> before the 'no ip routing' statement was introduced.
>
> I want to be able to bridge IP traffic between the four ethernets over =
> the frame cloud. Thus far I cannot ping anything from anywhere.
> The configs were taken right from the Cisco Bridging IBM and Network =
> Solutions book. IOS is 11.3 on all routers and switch.
>
> Questions:
> Do I need to do anything to the frame-cloud router?
> Is there any need for additional frame-relay bridge statements ?
> Should I do away with LMI and go with frame relay map statements =
> instead?
> Does using the ' frame-relay map bridge' statement disable LMI anyway?
>
> Thoughts appreciated.
>
> The following configs are on each router:
>
> no ip routing
> bridge 1 protocol ieee
>
> int s0
> bridge-group 1
> frame-relay map bridge <s0- dlci> broadcast
>
> int e0
> bridge-group 1
>
> This is the same on all routers:
>
> router1#sh frame map
> Serial0 (up): bridge dlci 104(0x68,0x1880), static,
> broadcast,
> CISCO, status deleted =20
>
> Router3 is the only one to have any bridge mappings:
> router3#sh bridge
>
> Total of 300 station blocks, 297 free
> Codes: P - permanent, S - self
>
> Bridge Group 1:
>
> Address Action Interface Age RX count TX count
> 0000.0c4a.1c13 forward Ethernet0 0 0 0
> 0060.083c.564f forward Ethernet0 0 62 0
> 0060.0897.bf6c forward Ethernet0 1 2 0 =20
>
>
> NOTE: All routers have the statement 'We are the root of the spanning =
> tree' in their respective show span outputs.
>
>
>
>
>
>



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