redistribute IGP routes to BGP

Thu Nov 1 17:54:25 UTC 2001

I didn't get how this helps to make this redistribution useful.
Could you give me more hints?

> -----Original Message-----
> From: Brian [mailto:bri at sonicboom.org]
> Sent: Thursday, November 01, 2001 11:45 AM
> To: Zhao, Xingguo; nanog at merit.edu
> Subject: Re: 
> 
> 
> I would much rather define my neighbors individually and 
> control them that
> way, and use either no sync or a hi metric null route to 
> satisfy bgp's must
> be in igp requirement.
> 
>         Brian
> 
> ----- Original Message -----
> From: "Zhao, Xingguo" <xzhao at celoxnetworks.com>
> To: <nanog at merit.edu>
> Sent: Thursday, November 01, 2001 9:33 AM
> 
> 
> >
> > Hi, all
> >
> > I have a question regarding to redistribute IGR routes into 
> BGP. Currently
> > both Cisco
> > and Juniper support it.
> >
> > Here I don't understand what is the advantage of this 
> redistribution?
> > Because BGP is
> > potentially injecting information into the IGP and then sending such
> > information back into BGP.
> >
> > Could anybody provide more description regarding the 
> advantage and the
> > disadvantage
> > of redistribuing IGP routes into BGP?
> >
> > Do people use this in real life?
> >
> > Thanks a lot,
> > Xingguo
> >
> 