From: Huan Pham (pnhuan@yahoo.com)
Date: Sun Mar 01 2009 - 09:54:48 ARST
Hi Mohamed,
Then you know the answer in Joe's post - obviously you can!
In
addition to Joe's post, Pls be aware that MED can only influence incomming
policy on directly connected AS. On the other hand, AS & Origin can be used to
influence routing policy even on remote indirectly connected upstream AS. Some
real life scenarios prevent you from twicking AS path (e.g. which may cause
other undesirable side effect changes) leaving you with only one option of
using Origin. I came across this scenario once, in a MPLS VPN service provider
network.
Leave all options open, then you can always chose best one,
depending on your given scenario.
One-finger typed from my phone
On
01/03/2009, at 10:17 PM, Mohamed Tandou <dtandou@gmail.com> wrote:
Hi Joe and
Huan,
i wanted to know if Origin can be used to influence incoming traffic
like MED and AS-PATH.
Thanks
Moh
On Sun, Mar 1, 2009 at 4:35 AM, Huan
Pham <pnhuan@yahoo.com> wrote:
Hi Joe,
You seem to have missed his question.
He wants to know if Origin can be used to influence policy for outgoing
traffic. I have not tested it but i think althought not common, Origin could
be used, similar to Weight or Local Pref. It's a simple verification, but i am
not have access to lab right now.
One-finger typed from my phone
On
01/03/2009, at 3:27 PM, "Joseph L. Brunner" <joe@affirmedsystems.com> wrote:
As long as the "incomplete" is set upstream, either by route-map or simply
redistribute static into BGP, the receiving AS will use the incomplete to make
its outgoing decision if other I or E attributes are found on other competing
BGP paths...
Is this standard? No, as we have MED for this reason, but its
one way to do it... others are of course MED, AS path length prepends, etc.
-Joe
-----Original Message-----
From: nobody@groupstudy.com
[mailto:nobody@groupstudy.com] On Behalf Of Mohamed Tandou
Sent: Saturday,
February 28, 2009 8:19 PM
To: ccielab@groupstudy.com
Subject: Origin
Incomplete
GS,
i tested Origin Incomplete by using route-map to influence
incoming traffic
and it works but in one CCIE practice lab book they used it
to influence
outgoing traffic. Any comment?
Thanks
Moh
Blogs and organic
groups at http://www.ccie.net
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