From: navaid@rogers.com
Date: Sat Sep 27 2003 - 17:41:18 GMT-3
Ken,
I have also observed same before, But today when I configured it is working fine.
The only difference is:
1. IOS version.
2. I am using loopback for IBGP peering.
My IOS version is: ON RR: 12.2(1b)
ON RR-Client: 12.2(15)T5
Navaid
>
> From: Ken.Farrington@barclayscapital.com
> Date: 2003/09/27 Sat AM 10:27:35 EDT
> To: ccielab@groupstudy.com
> Subject: RE: BGP next-hop-self on a Route Reflector
>
> RR
> +----+
> +---------| R1 |-----------+
> | +----+ | |
> | | |lo0 4.4.4.4
> +----+ +----+ lo0 1.1.1.1 |
> | R2 | All in AS 555 | R3 |------------------ +----+
> +----+ +----+-------------------------| r4 | AS600
> RRc RRc EBGP +----+
>
>
> Guys, I have added an EBGP peer to the R3 router and advertising 4.4.4.4 via
> eBGP.
> The next hop I get on R3 for 4.4.4.4 is that of the ethernet on R4.
>
> So I set the next-hop-self on the R3 to R1 link and that sets the next-hop
> to the R3 ethernet link to R1.
>
> So does the next hop-self command only work on iBGP peers when the route is
> learned from eBGP?
>
> ???? im am a little confused?
>
>
>
> -----Original Message-----
> From: Ken.Farrington@barclayscapital.com
> [mailto:Ken.Farrington@barclayscapital.com]
> Sent: 27 September 2003 14:38
> To: ccielab@groupstudy.com
> Subject: BGP next-hop-self on a Route Reflector
>
>
> Good morning all,
>
> RR
> +----+
> +---------| R1 |-----------+
> | +----+ |
> | |
> +----+ +----+ lo0 1.1.1.1
> | R2 | All in AS 555 | R3 |------------------
> +----+ +----+
> RRc RRc
>
> I have the following above, and I am I am learning the 1.1.1.1 network via
> iBGP on R1 from R3 and this is being reflected to R2, but the R2 router is
> not putting this into it's routing table because the next hop in the BGP
> table is unreachable.
>
> So I tried to put on bgp next-hop-self on the RR (R1) to the neighbor for R2
> but this has no affect.
>
> I have never use RR before with the next-hop-self and assume now that this
> does not would and I will have to use another method of setting the next hop
> when the route reflects from R1 to R2.
>
> Can one of you techies, please let me know if this is fact, that
> next-hop-self is a no go on RRs?
>
> Many thx indeed,
> Ken
>
>
>
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