From: Juan Alcaide (jalcaide@xxxxxxxxx)
Date: Thu May 03 2001 - 14:53:45 GMT-3
Correct.
On Thu, 3 May 2001 mcaplan.cs@clearstream.com wrote:
> Hi,
>
> I have a question regarding the effects of no-sync on BGP.
>
> The rule for synch, as far as I know is that an IBGP peer will not advertise
> a BGP route to another peer (IBGP or EBGP) if that route does not exist in
> the IGP.
>
> >From my observations, a corollary to that is that a BGP peer will not
> install learnt BGP routes into the routing table if sync is turned on
> (assuming no redistribution). This is shown by comparing 'sh ip bgp' with
> 'sh ip route'; if sync is on, then routes will be visible in the BGP routing
> table, but will not be in the IP routing table. To get these BGP routes into
> the IP routing table, one has to simply do a 'no sync'.
>
> I'm just thinking aloud here, but I would appreciate some confirmation of my
> logic.
>
> Thanks
>
> Mark
>
>
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