From: Yasser Aly (blackyeyes00@hotmail.com)
Date: Fri Apr 11 2003 - 18:36:36 GMT-3
It might appear confusing naming convention but you are right
According to BSCN course material here is how they defined a non-client
"Other IBGP peers of the route reflector that are not clients are called
non-clients"
Note the word IBGP in the previous statement and non-clients too pointing
to IBGP neighbors that are not clients.
To acheive reachability all over the AS the R.R when receive a route from
one of its clients will propagate this route to all its clients - other
than the originator - and its non-clients IBGP peers. If RR didn't
propagate this route to its IBGP non-clients then the non-clients will
have no-way to learn this route and will be unreachable to them.
You might think this might be cause of loops or breaking the IBGP
propagating rules but
If the update was coming from a non-client to the RR then the RR will
reflect this to its clients only.
In summary:
Reflector receives updates from clients and non clients
A) If update is from client: RR Reflect to nonclients and clients (
except originator )
B) If update is from nonclient RR reflect to clients
C) If update is from EBGP peer then reflect to all nonclients and
clients.
>From: Danny Andaluz > > I have a question about non-clients in a
route-reflector topology. Assuming all routers are in the same AS, you
have a hub and spoke topology where the RR has three peerings with three
different routers. Only two of those neighbors are configured as
route-reflector-clients. In Doyle's routing TCPIP V. 2 pg. 127, it says
that if a RR learns a route from a RR-client that route will be sent to
the other RR-client as well as the non-client. I am under the impression
that a non-client is simply a neighbor that is not configured as a
RR-client in the RR. If this non-client was in a different AS, I can see
this happening because that is EBGP, but IBGP assumes a full mesh, so how
could the RR send this route to the non-client? Of course, I'm going on
the assumption that a non-client is what I described previously. So I
guess my question really is, what is a non-client? >TIA, >Danny
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