Re: RR & metrics not being propergated to ebgp peer from RR

Hi Brian

Thanks but I have already tried this i.e same metrics/route-maps from
CE doesn't work man!

Can't originate the prefixes on CE as I need them to come from behind the
CE no IGP being used & don't really want to use one if I can get away with
it..

BR

Tony

On 28 February 2013 22:15, Brian McGahan <bmcgahan_at_ine.com> wrote:

> Originate the prefixes on the CE so that the IGP metric will be copied to
> MED. If that's not an option then you'll have to manually set the MED
> outbound on the CE towards the PE if you want to get it to propagate.
>
> HTH,
>
>
> Brian McGahan, CCIE #8593 (R&S/SP/Security), CCDE #2013::13
> bmcgahan_at_INE.com
>
> Internetwork Expert, Inc.
> http://www.INE.com
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Tony Singh
> Sent: Thursday, February 28, 2013 2:36 PM
> To: Brian Dennis
> Cc: Cisco certification
> Subject: Re: RR & metrics not being propergated to ebgp peer from RR client
>
> Ok thanks for setting me straight Brain, what would be the best way to
> achieve the desired goal in that case or is it not possible
>
>
> On 28 February 2013 20:25, Brian Dennis <bdennis_at_ine.com> wrote:
>
> > MED is a non-transitive attribute which means in your case if the CE
> > learns a path via iBGP you can't pass the MED for that path to an eBGP
> > peer. If the CE originated the path into BGP itself then it would be
> > passed to its eBGP peer (PE).
> >
> > --
> > Brian Dennis, CCIEx5 #2210 (R&S/ISP-Dial/Security/SP/Voice)
> > bdennis_at_ine.com
> >
> > INE, Inc.
> > http://www.INE.com
> >
> >
> >
> >
> > On 2/28/13 3:05 PM, "Tony Singh" <mothafungla_at_gmail.com> wrote:
> >
> > >Hi Experts
> > >
> > >I may be missing some fundamental here but say the following
> > >
> > >SW>CE>PE
> > >
> > >SW is RR but also announcing several subnets into bgp process which
> > >reference preferred metrics
> > >
> > >these metric are advertised out to CE, CE see's these and advertises
> > >these metrics out to PE but PE does not see these metrics in bgp
> rib....?
> > >
> > >anything im doing wrong....
> > >
> > >
> > >
> > >CE#$ ipv4 unicast neighbors x.x.x.x advertised-routes BGP table
> > >version is 20, local router ID is x.x.x.x Status codes: s suppressed,
> > >d damped, h history, * valid, > best, i - internal,
> > > r RIB-failure, S Stale
> > >Origin codes: i - IGP, e - EGP, ? - incomplete
> > >
> > > Network Next Hop Metric LocPrf Weight Path
> > >*>ix.x.x.x x.x.x.x 200 100 0 i
> > >*>ix.x.x.x x.x.x.x 200 100 0 i
> > >*>ix.x.x.x
> > > x.x.x.x 200 100 0 i
> > >*>ix.x.x.x x.x.x.x 100 200 0 i
> > >*>ix.x.x.x
> > > x.x.x.x 100 200 0 i
> > >*> x.x.x.x
> > > 0.0.0.0 100 200 32768 i
> > >*> x.x.x.x
> > > 0.0.0.0 100 200 32768 i
> > >*> x.x.x.x
> > > 0.0.0.0 100 200 32768 i
> > >*>ix.x.x.x
> > > x.x.x.x 100 200 0 i
> > >
> > >Total number of prefixes 9
> > >
> > >
> > >
> > >PE#show ip bgp
> > >BGP table version is 28, local router ID is x.x.x.x Status codes: s
> > >suppressed, d damped, h history, * valid, > best, i - internal,
> > > r RIB-failure, S Stale
> > >Origin codes: i - IGP, e - EGP, ? - incomplete
> > >
> > > Network Next Hop Metric LocPrf Weight Path
> > >* x.x.x.x x.x.x.x 0 xxxxx i
> > >*> x.x.x.x 0 xxxxx i
> > >* x.x.x.x x.x.x.x 0 xxxxx i
> > >*> x.x.x.x 0 xxxxx i
> > >* x.x.x.x
> > > x.x.x.x 0 xxxxx i
> > >*> x.x.x.x 0 xxxxx i
> > >* x.x.x.x x.x.x.x 0 xxxxx i
> > >*> x.x.x.x 0 xxxxx i
> > >* x.x.x.x
> > > x.x.x.x 100 0 xxxxx i
> > >* x.x.x.x 0 xxxxx i
> > >*> 0.0.0.0 0 xxxxx i
> > >* x.x.x.x
> > > x.x.x.x 0 xxxxx i
> > >* x.x.x.x 100 0 xxxxx i
> > >*> 0.0.0.0 0 xxxxx i
> > >
> > >
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Received on Thu Feb 28 2013 - 22:23:31 ART