From: Volkov, Dmitry (Toronto - BCE) (dmitry_volkov@ca.ml.com)
Date: Wed Sep 11 2002 - 02:06:17 GMT-3
Here is again a source of confusing: Solie book Lab 26 and Skynet Lab
solution.
The solutions provided there use exactly the same config as Guoqi posted,
just bridge-group X added on interfaces. So, because it's not possible to
bridge out the same interface where frames are received - only way to use
subinterfaces on hub router (one for ech spoke) ?
Brian - what are other solutions ? You said a few ?
Thanks,
Dmitry
> -----Original Message-----
> From: Brian Dennis [mailto:brian@5g.net]
> Sent: Tuesday, September 10, 2002 9:47 PM
> To: 'Guoqi Cui'; ccielab@groupstudy.com
> Subject: RE: Bridging over frame-relay with hub and spoke topology
>
>
> Think about how a bridge normally forwards packets. Does a bridge
> normally forward packets out the same interface that they are received
> on? The answer of course is no. This being the case, why would you
> expect R3 to forward packets out the same interface (Serial0/1) it was
> received on?
>
> With this in mind you should be able to come up with a few solutions.
>
> Brian Dennis, CCIE #2210 (R&S/ISP Dial)
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> Behalf Of
> Guoqi Cui
> Sent: Tuesday, September 10, 2002 6:14 PM
> To: ccielab@groupstudy.com
> Subject: Bridging over frame-relay with hub and spoke topology
>
> Hi, group:
>
> I am trying to configure bridging over frame-relay
> with hub and spoke topology. Somehow, the two spokes
> can ping the hub, but the two spokes can not ping each
> other. Is this the correct operation or I missed
> something?
>
>
>
> Thank you.
>
> Guoqi
>
> R3 is the hub
>
> R1, R4 are spokes in frame-relay. each of the has
> ethernet connection to three other routers acting as
> hosts.
>
> R3:
> interface Serial0/1
> no ip address
> encapsulation frame-relay
> frame-relay map bridge 301 broadcast
> frame-relay map bridge 304 broadcast
>
> R1:
> interface Serial0/1
> no ip address
> encapsulation frame-relay
> frame-relay map bridge 103 broadcast
>
> R4:
> interface Serial0/1
> no ip address
> encapsulation frame-relay
> clock rate 64000
> frame-relay map bridge 403 broadcast
>
>
>
>
>
>
>
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