Re: BGP Best Path Selection

Nice. That's the best one I've seen yet, Joe. I think I'm about to borrow it
for my classes.

Cheers,

Jared Scrivener CCIE3 #16983 (R&S, Security, SP), CISSP
Sr. Technical Instructor - IPexpert, Inc.
URL: http://www.IPexpert.com
Telephone: +1.810.326.1444
Fax: +1.810.454.0130
Mailto: jscrivener_at_ipexpert.com

On 6/4/09 2:52 AM, "Joseph L. Brunner" <joe_at_affirmedsystems.com> wrote:

> HERE IS AGAIN YURI
>
> Nobody, Next hop if unreachable, don't consider
> Wants, Weight Largest preferred
> Perot, Preference highest preferred
> Running, Route originated by BGP on this router
> Again, AS-Path, Shortest length is best
> Only, Origin, where I > E > ?
> Modern, Med (metric) prefer the Lowest MED, amongst paths. Know the med
> commands too and how they work!!!
> Economic, External over internal. This often leads to EBGP routes becoming the
> best route
> Conservatives, Closest IGP neighbor, where closest would have the lowest
> routing metric (interesting one here be careful!!!)
> Open, Oldest route (promotes stability :)
> In, Lowest peer ID
> Iowa, Lowest router id (obviously this would probably imply two peering
> sessions to the same neighbor somewhere)
>
>
> -Joe
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Cisco
> Fanatic
> Sent: Wednesday, June 03, 2009 3:59 PM
> To: ccielab_at_groupstudy.com
> Subject: BGP Best Path Selection
>
> All,
>
> Just was wondering if someone has a slang to remember BGP Best Path Selection
> process?
>
> -Yuri
>
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Received on Thu Jun 04 2009 - 04:18:39 ART