Re: What basis we have to construct NHAF for IBGP and EBGP?

Venkat,

Can you provide some further configs on R1 and R3?  I'm a bit confused
as to how Cisco is advertising these routes?

On 11/21/08, Venkateshwaran R <venkat5555in(_at_)yahoo(_dot_)com> wrote:
> Hi
>
> I am Venkateshwaran(Venkat in short) from Chennai, India.
>
> Please clarify my doubt in BGP4+ how next hop field is constructed?
>
> Setup
> =====
> Three routers RT1 , RT2 and RT3.
> RT1 and RT2 are in same AS 100.  RT3 is different AS 200.
> RT1 and RT3 is connected with RT2.
>
> Under this setup i need to clarify the following:
>
> 1.  How the next hop field is going to be constructed for MP_REACH_NLRI
> attribute?
>
>    I simulated the same scenario against cisco and zebra.
>
>    Cisco sends ipv6 global address alone to RT1. To RT3 it sends both ipv6
> global address and link local address.
>
>    Zebra sends both ipv6 global address and link local address to RT1 and
> RT3.
>
>     Why this different behavior?  Kindly Please clarify me in what basis we
> have to construct NHAF for IBGP and EBGP?
>
> Regards
> Venkat
>
>
>
>
>
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