RE: Question on Redistribution RIPv2 to BGP

From: Jeff Koh (jkoh.tt@hotmail.com)
Date: Tue Jul 24 2007 - 03:47:26 ART


Hi,

What i would want to find out is that, given RIP and BGP running on the same
router. We change the default RIP AD to 220. So for instant, prefix Y is
learnt from RIP and suppose to be redistributed into BGP, BUT this prefix Y is
also been advertised by other BGP AS, so after changing the RIP AD, the router
with prefix Y - one coming from BGP (for this case this router is peering with
another IBGP router and that IBGP router learnt this prefix Y from external
BGP), one coming thru redistribution via RIP. But after we changed the RIP AD,
does this redistribution from RIP to BGP still appear?

cheers,

> Subject: RE: Question on Redistribution RIPv2 to BGP> Date: Tue, 24 Jul 2007
07:36:49 +0100> From: subodh.rawat@wipro.com> To: jkoh.tt@hotmail.com;
ccielab@groupstudy.com> > > Your question is little vague. But what I have
understood from you is> that you want to know what will happen in case iBGP
routes fail.....In> that case RIP route will publish in the global routing
table after some> time after iBGP fails and all dead time/hold time timer
calculations.> > > > > -----Original Message-----> From: nobody@groupstudy.com
[mailto:nobody@groupstudy.com] On Behalf Of> Jeff Koh> Sent: Tuesday, July 24,
2007 11:36 AM> To: ccielab@groupstudy.com> Subject: Question on Redistribution
RIPv2 to BGP> > Hi GS folks,> > This might not be related to the exam. Here's
the scenario, we have> segment Y redistributed from RIPv2 to BGP. This segment
Y is also being> advertised by the external BGP via another AS. We increased
the RIP AD> to 220 to make IBGP the prefer. Thus in the event that IBGP fails,
it> will take RIP path. Now on the local router, since IBGP routes with AD>
200 as the prefer, RIP will disappear from the routing table rite? Then,> what
will happen to the RIP redistribution to BGP? Since only routes> that appear
on routing table will then be redistributed?> > Thanks!> > cheers,> >



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