Good point Peter.
>From: "Peter Van Oene" <[EMAIL PROTECTED]>
>To: "Frank Wells" <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
>Subject: Re: bgp path selection criteria
>Date: Mon, 27 Nov 2000 12:32:32 -0500
>
>Keep in mind that Weight is Cisco proprietary. Most routers begin with
>local pref as the first tie break.
>
>*********** REPLY SEPARATOR ***********
>
>On 11/27/2000 at 8:18 AM Frank Wells wrote:
>
> >This is the BGP attribute decision process:
> >
> >1 BGP Path Selection starts; if the next hop is inaccessible, do not
> >consider it.
> >
> >2 Consider larger BGP administrative weights first.
> >
> >3 If the routers have the same weight, consider the route with higher
>local
> >preference.
> >
> >4 If the routes have the same local preference, prefer the route that the
> >specified router originated.
> >
> >5 If no route was originated, prefer the shorter AS path.
> >
> >6 If the AS paths are of the same length, prefer external paths over
> >internal paths.
> >
> >7 If all paths are external, prefer the lowest origin code (IGP [Interior
> >Gateway Protocol] <EGP <INCOMPLETE).
> >
> >8 If origin codes are the same, prefer the path with the lowest
> >MULTI_EXIT_DISC (MED). A missing metric is treated as zero.
> >
> >9 If IGP synchronization is disabled and only an internal path remains,
> >prefer the path through the closest IGP neighbor.
> >
> >10 Prefer the route with the lowest IP address value for the BGP router
>ID.
> >
> >
> >>From: "Yee, Jason" <[EMAIL PROTECTED]>
> >>Reply-To: "Yee, Jason" <[EMAIL PROTECTED]>
> >>To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
> >>Subject: bgp path selection criteria
> >>Date: Tue, 21 Nov 2000 03:38:56 -0500
> >>
> >>
> >>
> >>hi ,
> >>
> >>
> >>Anyone here knows which BGP path criteria takes precedence ? AS_PATH or
> >>local preference
> >>
> >>
> >>From what I read it is local preference , but in actual fact it is not
>so ,
> >>why I said this is because I have a customer who prepends their prefixes
> >>many times then advertise them to us but on our side we set local
> >>preference
> >>to customers' routes to 90 which in fact will always come back to us if
>we
> >>do this but this is not happening
> >>
> >>Instead the prefixes go to another providers' link because their AS-PATH
>is
> >>shorter
> >>
> >>why is that so?
> >>
> >>
> >>Jason
> >>
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