From: David Luu (wicked01@xxxxxxxxxxxxx)
Date: Sat Jun 01 2002 - 17:22:05 GMT-3
all bridges are configured with a default priority for STP, which is
probably why you see R3 as root bridge...you need to manipulate R1 to
become root by setting the priority lower (ex: bridge 1 priority 50)
At 07:23 AM 6/1/2002 -0400, Yagnesh Patel wrote:
>Here is what i have
>
>R1 (Hub)
>bridge 1 proto ieee
>int se 0.1
>bridge-gro 1
>frame-relay map bri 112 broad
>frame-relay map bri 113 broad
>
>R2(Spoke_1)
>bridge 1 proto ieee
>int se 0
>bridge-gro 1
>frame-relay map bri 211 broad
>int e 0
>bridge-group 1
>
>bridge 1 proto ieee
>
>R3 (Spoke_2)
>bridge 1 proto ieee
>int se 0
>bridge-group 1
>frame-relay map 311 broad
>int e 0
>bridge-group 1
>
>Bridge 1 proto ieee
>bridge 1 priority 1
>
> David , If you don't mind try the above config and let me
> know if you are getting spoke to spoke communication. If you are then in
> R2 you should see root bridge as R3.
>
>Thanks
>Yagnesh
>
>David Luu wrote:
>
>>split horizon deals with routing updates being received and not sent out
>>the same interface...split horizon deals with layer 3, bridging is layer
>>1...it has no relevance in this scenario
>>
>>yagnesh...
>>
>>first of all, does your frame relay work? without any routing protocols
>>running...ping throughout the frame relay cloud, if you cant ping, then
>>the problem lies in your frame relay configs
>>
>>frame relay map bridge statements needs to be in all routers
>>participating in a bridged multipoint frame relay environment...R1s
>>multipoint serial interface, R2 and R3s serial interface (R1 will have 2
>>map bridge statements)
>>
>>and the bridge group command on all interfaces participating...R1s
>>multipoint serial interface, R2s serial and ethernet, R3s serial and ethernet
>>
>>
>>At 12:03 AM 6/1/2002 -0400, Bezverkhi, Serguei wrote:
>>
>>>It won't work because of the split horizon, and as far as I remember
>>>there is no way to disable it. You have to use point-to-point interfaces
>>>to resolve this.
>>>
>>>Hope it helps
>>>
>>>Serguei
>>>
>>>-----Original Message-----
>>>From: Yagnesh Patel [mailto:Yagnesh.Patel@verizon.net]
>>>Sent: May 31, 2002 10:41 PM
>>>To: ccielab@groupstudy.com
>>>Subject: FrameRelay multipoint interface and bridging
>>>
>>>
>>>Hi,
>>> Can anyone please provide me a good solution for the following problem.
>>>
>>>R1= Hub router with a multipoint interface
>>>R2 = Spoke_1 with Connected to R1's multipoint interface thru
>>>Frame-relay R3 = Spoke_2 Connected to R1's multipoint interface thru
>>>Frame-relay VLAN_2 = Connected to R2 router VLAN_3 = Connected to R3
>>>router
>>>
>>> I want to bridge VLAN2 and VLAN3. I have all appropriate commands under
>>>
>>>the interfaces / global including "frame-relay map bridge" statement but
>>>
>>>it is not working. I think it is not working because both spokes are
>>>connected to the same multipoint interface on R1.
>>>
>>>
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