From: Omer Ansari (omer@ansari.com)
Date: Thu Sep 12 2002 - 20:09:53 GMT-3
I beg to differ.
if you dont have all the sub-ASes in the bgp confederation peers, how
would you know if the routes coming via an AS are from outside or from
within the confederation?
i think you have to have all the sub-ASes listed in the bgp confed peers
(even if they are not adjoint)
see bgp case study:
http://www.cisco.com/warp/public/459/16.html#A23.0
RtC is not directly connected to AS70 but still has as70 in the bgp confed
peers statement, for routes coming from/via as70, how would rtc know if
its from within the confederation or outside, if it doesnt know who all is
in in the confederation?
regards,
Omer
On Fri, 13 Sep 2002, [iso-8859-1] Lim Meng Toon wrote:
> Hi,
>
> Usually you only need to peer to those routers within
> the confederation as required and not to every peers.
>
> Thanks
>
> --- Peng Zheng <zpnist@yahoo.com> wrote: > Hi,
> >
> > Should I only specify AS peers which are directly
> > connected with local router or Specify all ASs that
> > belong to the confederation?
> >
> > IN CIM BGP, they specify all ASs. But I remember I
> > saw some examples only specify ASs directly
> > connected.
> >
> >
> > Which one should be used?
> >
> > Thank you for help.
> >
> > Best Wishes,
> > Peng Zheng
> >
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