From: Nadeem Ansari (nadeem.ansari574@gmail.com)
Date: Sun Mar 01 2009 - 11:58:09 ARST
Dear Mohammed,
yes origin can be use to influence incoming traffic bcoz origin will be use
as path selection
Regards
Nadeem
On 3/1/09, Huan Pham <pnhuan@yahoo.com> wrote:
>
> 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
>
>
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