Hi!
"cost" includes bandwidth... ;)
--------------------------------------------------------
Basil (Vasily) Dolmatov, CCIE #5347, CCNP-Security, CCDA
LightCom Corp. http://www.lightcom.ru
> -----Original Message-----
> From: Yu Ning [mailto:yuning@cndata.com]
> Sent: Tuesday, September 26, 2000 9:30 AM
> To: Basil Dolmatov; cisco-nsp@puck.nether.net
> Cc: Chinanet-vt
> Subject: Re: [nsp] How to adjust the "traffic share count/ratio"
> of equal cost IGP path ?
>
>
> Hi Basil,
>
> In my original message, I didn't mean "non-equal paths load
> balance" via IGRP/EIGRP.
> These two Cisco proprietary protocol add a parameter called
> "variance" to allow load
> balance happen on several slightly different cost IGP path. What
> I mean is strictly
> equal cost IGP paths, but different bandwidth, then I want a
> different load share ratio
> among them.
>
> thanks!
>
> ------------------------------------------
> (Mr.) Yu(2) Ning(2)
> Support Engineer, Int'l/Domestic Routing
> ChinaNET (AS4134) Backbone Operation
> Beijing, P.R.C. +86-10-66418105/8121/8122
> ------------------------------------------
> ----- Original Message -----
> From: "Basil Dolmatov" <dol@east.ru>
> To: "Yu Ning" <yuning@cndata.com>; <cisco-nsp@puck.nether.net>
> Cc: "Chinanet-vt" <Chinanet-vt@cisco.com>
> Sent: Monday, September 25, 2000 5:16 PM
> Subject: RE: [nsp] How to adjust the "traffic share count/ratio"
> of equal cost IGP path ?
>
>
> >
> >
> > --------------------------------------------------------
> > Basil (Vasily) Dolmatov, CCIE #5347, CCNP-Security, CCDA
> > LightCom Corp. http://www.lightcom.ru
> >
> > >
> > > Hi All,
> > >
> > > We know that if we see equal cost IGP routes, the Cisco box will
> > > load balance between
> > > the different output interfaces. For example:
> > >
> > >
> > > The "*" sign indicate the current route used. But normally the
> > > traffic load will evenly
> > > shared in all the parallel paths, no matter how different BW they
> > > are. Then I wonder if
> > > there is any method to adjust the "traffic share count" of the
> > > different output interface,
> > > so that I can get an uneven load share?
> > >
> > > The possibility of this idea comes to me when I dig some document
> > > on cisco MPLS-TE, it says
> > > that if two MPLS tunnels have different BW, the "traffic share
> > > count" will be adjusted according
> > > to the bandwidth ratio automatically. Because the load share is
> > > based on the CEF, and is generic
> > > to all kinds of IGP, then I think it maybe possible in ISIS.
> > >
> > > Our environment is: GSR with dCEF enable, IOS 12.0 train. IGP=ISIS.
> > >
> > > Any input? Thanks!
> > The only IGP which can load balance over non-equal paths is EIGRP.
> >
> >
> >
> >
>
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