From: Michael Stout (michaelgstout@hotmail.com)
Date: Fri Jul 07 2006 - 23:18:39 ART
i thought all routing protocols added the metric at the ingress port, I
remeber that because spanningtree does the same. Can anybody verify this?
So, if i want Router2 to show a metric of 10, i should apply an offset
list with a value of 9 outbound on R1, if the route in question is local.
concerning your last statement, using an offset list with a value of 15,
if router 2 increments the metric to 1 it would then equal 15+1 ,
infinity.
--------------------------------------------------------------------
From: "Tony Paterra" <apaterra@gmail.com>
Reply-To: "Tony Paterra" <apaterra@gmail.com>
To: "Cisco certification" <ccielab@groupstudy.com>
Subject: Routing metric advertisements...
Date: Fri, 7 Jul 2006 18:37:34 -0400
All,
Was playing with a lab and was curious if someone could help me
figure
out the following...
When you are sending routing advertisements between directly
connected
routers (name them Router1 and Router2), how are the metrics updated?
For instance:
If Router1 is going to send a rip update to Router2, he takes all his
rip routes in his routing table (not the database), increments by 1
and sends them to Router2 (who trusts the metric from Router1).
I believe this is handled differently in OSPF and EIGRP (i.e. OSPF
takes the inbound advertisements and adds it's cost for that
interface)... Can someone enlighten me?
Also if I want to prevent Router2 from passing rip routes along, can
I
just re-dist/route-map/offset-list/etc... the routes I'm advertising
to 15 on Router1 and Router2 won't be able to pass them along?
Thanks in advance,
--
Tony Paterra
apaterra@gmail.com
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