From: Nick Shah (nshah@xxxxxxxxxxxxxx)
Date: Thu Aug 29 2002 - 00:17:50 GMT-3
I was using 12.1(5)T9, which seems to be highly unreliable. That was showing
me a particular behaviour, disregarding MED. Hence I always thought that
way.
So, what the doc. says is 'correct'
Nick
----- Original Message -----
From: "Angelo De Guzman" <ghie_pogi@yahoo.com>
To: "Nick Shah" <nshah@connect.com.au>; "Jon O'Nan"
<jononan@columbus.rr.com>; <ccielab@groupstudy.com>
Sent: Thursday, August 29, 2002 1:12 PM
Subject: Re: deterministic med
> Hi Nick,
> Do you mean this is wrong? 8-)
>
> By default, BGP compares the MED attributes of routes
> coming from neighbors in the same external AS
>
> I got this from this link.
>
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ics/icsbgp4.htm#xtocid20439
26
>
> Thanks,
> Angelo
>
> --- Nick Shah <nshah@connect.com.au> wrote:
> > Jon
> >
> > I hope you have already read this paper..
> > http://www.cisco.com/warp/customer/459/bgp-med.html
> >
> > regardless of that. I will list down the effect of
> > these 2 commands.
> >
> > * By default (with none of these commands entered)
> > MED is NOT compared when
> > selecting the best path.
> > * Turning on bgp deterministic-med, turns on the
> > feature to compare MED,
> > however it only compares MED, if prefix is received
> > from same neighbor and
> > the best man wins
> > * Turning on bgp always-compare-med, starts
> > comparing 'same prefix' recd.
> > from 'different neighbors' and the best man wins
> > * Turning on both of them may really not be
> > required, but it basically
> > compares if prefixes are recd. in groups of AS's
> > (say same prefix from AS
> > 200, via 2 neighbors, and same prefix from AS 100
> > via 1 neighbor).
> >
> > rgds
> > Nick
> > ----- Original Message -----
> > From: "Jon O'Nan" <jononan@columbus.rr.com>
> > To: <ccielab@groupstudy.com>
> > Sent: Thursday, August 29, 2002 8:58 AM
> > Subject: deterministic med
> >
> >
> > > Am I correct that:
> > >
> > > bgp deterministic med - compares med within AS
> > >
> > > VS.
> > >
> > > bgp always-compare-med - compares med from another
> > AS
> > >
> > >
> > > Thanks
> > > Jon
> > >
> >
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