Re: Internet Traffic load balancing

From: Shawn Zandi <szmetal_at_gmail.com>
Date: Mon, 2 May 2011 18:55:51 -0700

Marko,
Did you get "show ip cef 0.0.0.0 0.0.0.0 internal" and check the output per
hash
just FYI, I used this trick before and it works...

--
Sincerely,
Shawn Zandi - CCIE x3 (R&S/Security/SP)
On Mon, May 2, 2011 at 4:06 PM, Marko Milivojevic <markom_at_ipexpert.com>wrote:
> To make my argument further:
>
> R2#sh ip cef 0.0.0.0 0.0.0.0 detail
> 0.0.0.0/0, epoch 0, per-destination sharing
>  DefNet source: 0.0.0.0/0
>  recursive via 169.254.1.1
>    recursive via 10.0.0.1
>      attached to GigabitEthernet0/0
>  recursive via 169.254.1.2
>    recursive via 10.0.0.1
>      attached to GigabitEthernet0/0
>  recursive via 169.254.1.3
>    recursive via 10.0.0.1
>      attached to GigabitEthernet0/0
>  recursive via 169.254.1.4
>    recursive via 10.0.0.1
>      attached to GigabitEthernet0/0
>  recursive via 169.254.1.5
>    recursive via 10.0.0.1
>      attached to GigabitEthernet0/0
>  recursive via 169.254.2.1
>    recursive via 20.0.0.2
>      attached to GigabitEthernet0/1
>  recursive via 169.254.2.2
>    recursive via 20.0.0.2
>      attached to GigabitEthernet0/1
>
> As you can see, CEF resolves this in the manner I described.
>
> --
> Marko Milivojevic - CCIE #18427
> Senior Technical Instructor - IPexpert
>
> FREE CCIE training: http://bit.ly/vLecture
>
> Mailto: markom_at_ipexpert.com
> Telephone: +1.810.326.1444
> Web: http://www.ipexpert.com/
>
> On Mon, May 2, 2011 at 15:55, Marko Milivojevic <markom_at_ipexpert.com>
> wrote:
> > On Mon, May 2, 2011 at 15:52, Brian McGahan <bmcgahan_at_ine.com> wrote:
> >> Yes each route is equal, but more point to one exit point vs. another.
> Try it, it works.
> >
> > Just to make it clear - I'm not arguing. I like the solution, but I'm
> > not sure if it's going to solve the problem for the reasons below.
> >
> > I'm sure they will show in the routing table as 7 different routes.
> > However, when CEF resolves adjacencies, there will still be only two
> > exits. While we may have the impression that we have 5:2 ratio by
> > looking into the RIB, are we _actually_ going to have it with the
> > traffic.
> >
> > Without generating the traffic and measuring the output, I'm not quite
> > sure how to test this...
> >
> > --
> > Marko Milivojevic - CCIE #18427
> > Senior Technical Instructor - IPexpert
> >
> > FREE CCIE training: http://bit.ly/vLecture
> >
> > Mailto: markom_at_ipexpert.com
> > Telephone: +1.810.326.1444
> > Web: http://www.ipexpert.com/
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
Received on Mon May 02 2011 - 18:55:51 ART

This archive was generated by hypermail 2.2.0 : Wed Jun 01 2011 - 09:01:11 ART