Re: VPNv4 next-hop-self

I spent some time on this last week... One of the documents I read through
was this:
http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fsiaseb.html

Might help shed some further "Cisco-centric" light on the matter.

On Mon, Jun 29, 2009 at 5:37 PM, Splinter <splinter330_at_gmail.com> wrote:

> Thank all for your inputs it has helped to put things into perspective.
>
>
>
> On Mon, Jun 29, 2009 at 5:06 PM, Scott Morris <smorris_at_ine.com> wrote:
>
> > That's going to very much depend on how you have/are building your LSPs.
> > The next-hop-self in the wrong place will very definitely affect the MPLS
> > traffic flow through your network.
> >
> > VPNv4 isn't techncially different than "regular" IPv4 routes. So your
> > thought process for why you'd need to or not need to do that is the same.
> > But presumably you've built your ISP with having reachability to/from all
> PE
> > routers' loopbacks.
> >
> > Monitor your routes... Look at your next-hop information and see if it's
> > what you expect it to be! If it's not... Change it to something else!
> > Just be aware of whether it messes with your perceived traffic
> engineering.
> > :)
> >
> >
> >
> >
> > *Scott Morris*, CCIE*x4* (R&S/ISP-Dial/Security/Service Provider) #4713,
> >
> > JNCIE-M #153, JNCIS-ER, CISSP, et al.
> >
> > JNCI-M, JNCI-ER
> >
> > evil_at_ine.com
> >
> >
> > Internetwork Expert, Inc.
> >
> > http://www.InternetworkExpert.com <http://www.internetworkexpert.com/>
> >
> > Toll Free: 877-224-8987
> >
> > Outside US: 775-826-4344
> >
> >
> > Knowledge is power.
> >
> > Power corrupts.
> >
> > Study hard and be Eeeeviiiil......
> >
> >
> >
> >
> > Splinter wrote:
> >
> > Hi All,
> >
> > please can anyone help me understand when to use the next-hop-self under
> the
> > vpnv4 process and why this is needed.
> > any good examples are welcome to get a better understanding.
> >
> > thank you
> >
> > Splinter
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
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Received on Tue Jun 30 2009 - 11:52:27 ART