From: Jens Petter Eikeland (jenseike@start.no)
Date: Tue Sep 20 2005 - 07:21:50 GMT-3
R1 and r2 is in different AS..
Loopback 1 is on r1, and r2 do not have the net in the routing table
anyhow, so I guess the config needs to be on r1,., I have never done this
kind of config, so unsure of what to do. There are a pix between them
R1 Loopback 1 is : 10.10.11.11
R1 looback 0 is : 10.10.1.1
R2 loopback 0 is 10.10.2.2
There are ospf routes to pix, and static routes to r1 loopback0 on r2
I have this topology :
R1(ospf)------------------(ospf)pix------------------------r2
R1 should only learn bgp routes from r2 if loopback 1 of R1 is up..
How would I do this..R1 loopback 0 is peering with R2's loopback 0
Jens
-----Opprinnelig melding-----
Fra: Leigh Harrison [mailto:ccileigh@gmail.com]
Sendt: 20. september 2005 12:16
Til: Jens Petter Eikeland
Kopi: jackyliu419@gmail.com; ccielab@groupstudy.com
Emne: Re: SV: bgp route-reflector issue
Hey Jens,
Pretty straight forward one this - I presume that you don't mean R1
should learn routes from R1 !! But from some other router.
For your iBGP neighbor, put in the loopback address.
If he's an eBGP neighbor, put in the loopback address AND the eBGP
multi-hop command - as it's not directly connected.
That way, when the interface is down, the neighbor relationship is gone
and no routes will pass
Hope that helps,
LH
Jens Petter Eikeland wrote:
>Hey..
>
>Thanks, that will do it then..
>
>
>
>I have yet another Q. r1 should only learn routes from r1 if lo1 is up. I
>guess this is some kind of conditional routing,
>
>But I don't know how to configure..
>
>
>
>Jens
>
>
>
> _____
>
>Fra: Niche [mailto:jackyliu419@gmail.com]
>Sendt: 20. september 2005 11:54
>Til: Jens Petter Eikeland
>Kopi: ccielab@groupstudy.com
>Emne: Re: bgp route-reflector issue
>
>
>
>Yes, you can make R1 as a route-reflector for sw1. And in fact, if my
memory
>still serve, and please someone point out if I am wrong..
>
>If you don't set R1 as route-reflector for sw1 (which I assume sw is alot
>inside the same AS), sw1 won't receive the route from R1.
>
>It's because if you only set R1 as a route-reflector-client of R5, all R5
>route will only advertise 1 more hope further into the local AS if that
>receiver is a same AS RR-client. But I can't 100% confirm this..
>
>Another solution will be make R1 become a normal iBGP peer to R5.
>
>Cheers~
>Jacky
>
>On 9/20/05, Jens Petter Eikeland <jenseike@start.no> wrote:
>
>Hi group..
>
>
>
>I am trying to get something to wor, bu tare unsure of what exactly to
do..
>This is the toplology :
>
>
>
>Switch1--------r1--------r5-----------r2
>
> |
>
> |
>
> R4
>
>
>
>R1, r2,r4 and r5 is in a frame-relay nbma network. All the routers form a
>single AS. I would guess that the normal thing here would be to
>set r5 as route-reflector. But Switch 1 have to been reach from the network
>by using bgp only.. so my question is. If I make r5 RR for r1, r2
>and r4. Can I also then make r1 as route-reflector for switch1. Would this
>be a scenario that is good to configure, or is there some other solution
>that would be a better solution..
>
>
>
>Thanks
>
>
>
>Jens P
>
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