RE: Bridging over FR hub and spoke

From: ccie candidate (ccie1@xxxxxxxxx)
Date: Sun Aug 18 2002 - 11:51:30 GMT-3


   
 best thing to try then is p2p subif everywhere (including the hub )

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On Sun, 18 Aug 2002 18:48:11 K Sarangan wrote: >Hi, > >I tried that also. Still the same one. I think the problem is not the one whic h we were discussing >before. Here it says "encapsulation failed" after it goes from (local) to (BVI 1). I think from BVI1, >it does not know how to get encapsulated in the frame packet. Any clue? > >You will also get this error when you give encap ppp instead of default encap hdlc for the bridges. > > >Sarangan > >-----Original Message----- >From: ccie candidate [mailto:ccie1@lycos.com] >Sent: Sunday, August 18, 2002 4:26 PM >To: ccie candidate; ccielab@groupstudy.com; Ng,Kim Seng David (David); K >Sarangan >Subject: RE: Bridging over FR hub and spoke > > > ok >may be the problem is the same one we were discussion under subject "bridging " where the serial interfaces cannot reach each other because of the MAC ,try t o enable IRB with BVI interface in spokes and give the BVI the IP address inste ad of the serial and see if it work ..let me know :) > >HTH > >On Sun, 18 Aug 2002 15:21:16 > K Sarangan wrote: >>In this scenario, i have enabled point-point sub int. on the Hub and physical on the spokes. >>Given frame map bridge broadcast on the sopkes and Hub. >> >>Pinging from a PC in R2, iam getting encapsulation failed when I do >>debug ip packet. Tried various options on the sopke, point-point, multipoint etc and >>even enabled IRB with BVI on R2. But still the same error. What could be the problem?. >> >> >> >>-----Original Message----- >>From: ccie candidate [mailto:ccie1@lycos.com] >>Sent: Friday, August 16, 2002 11:20 AM >>To: ccielab@groupstudy.com; Ng, Kim Seng David (David) >>Subject: Re: Bridging over FR hub and spoke >> >> >>hi ; >>these scenario will not work in briding as well as some other things i come t o discover . >>ipx rip ---> you cannot disable split horizon , you need subif. >>Nlsp------> also you need subif (duno why ) >>briding --> packets will not return back from the same interface . >> >>pim dense mode --> the prune will not be listened by spokes and cannot be ove rride ...use sparse mode . >> >> >>HTH >> >> >> >> >>-- >> >>On Fri, 16 Aug 2002 08:31:49 >> Ng, Kim Seng David (David) wrote: >>>Hi group, >>> >>> I am having some difficulties with the following bridging scenario: >>> >>> >>> e0-R2-s0------------FR CLOUD---------s0-R3-BVI1 >>> | >>> | >>> | >>> e0-R1 (HUB) >>> >>> >>>R1 is the Root Bridge and the hub in this frame-relay hub and spoke configur ation. All has bridging switched on. Since they are all using physical interfac e, I need to configure "frame-relay map bridge [dlci] broadcast" on every route r. The R1 will have two frame-map bridge mappings as it is the hub. I also enab led IRB and created a BVI1 on R3. The command "bridge 1 route ip" is configured only on R3 since the BVI is there. >>> >>>Tested by pinging the BVI1 on R3 from a PC connected to the e0 of R1 and R2. The result: >>> >>>From R1 -PASSED >>>From R2 -FAILED (even after "clear arp") >>> >>>Has this got something to do with split-horizon? >>> >>>Thanks in advance >>>David



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