From: shiran guez (shiranp3@gmail.com)
Date: Wed Jan 09 2008 - 04:26:49 ARST
Hi Navid
BGP is a TCP based protocol so it is not a problem to connect even 10 or 20
hops away neighbor relation unlike OSPF EIGRP where it is relaying on direct
connection.
as long as you are reachable with some kind of underline IGP or Static (god
forbid) protocol you should have no problem connecting 2 neighbor.
ADVICE: when you work with BGP, check first full connectivity to all routers
in your network, then once you have it ignor the topology draw you have and
put on paper all the routers that should participate in the BGP domain in an
AS order groups then see what are the neighbor relation and connect them
with arrows then once you see the BGP domain connection it is much easier to
do the configuration, usually when you talk about remote neighbor relation
iBGP as well as eBGP it is relaying on the loopback so even if you will
loose one connection you will get to your neighbor from different path.
I hope this is some help to you,
Regards
On Jan 8, 2008 10:19 PM, Navid Daghighi <smart4D@free.fr> wrote:
> Hi,
>
> I understand we should always try to use either route-reflectors or
> confederations when we don't have a full mesh iBGP
>
> but some times it IS impossible, as in IE R&S lab 3, where there are 2
> totally disjointed groups of routers in the same AS
>
> is there any other situation where we should not loose time trying to
> fullfil this iBGP full mesh requirement ?
>
> thanks,
> Navid
>
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-- Shiran Guez MCSE CCNP NCE1 http://cciep3.blogspot.com http://www.linkedin.com/in/cciep3
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