[c-nsp] Traffic Engineering Internet links automatically

[Kim Onnel]

Hi Gert,

Our Gateway is a 7600 and their routers are Junipers, i think OER is
properit.

For moving networks between links, is there like an easy, organized method ?


the PoS links are to Newyork and London, while the giga is to the co-located
router, so we cant loose the PoS because it gives better delay for voice,...

Thanks

On 3/27/06, Gert Doering <gert at greenie.muc.de> wrote:
>
> Hi,
>
> On Mon, Mar 27, 2006 at 03:09:11PM +0200, Kim Onnel wrote:
> > I am sure someone has been in my place before and there is something
> that
> > can be done on this matter, i'll try to explain again in more details,
> maybe
> > i missed something, i hope i can get suggestions on Best practices for
> this
> >
> > upstream \
> > upstream ---- multiple links ----- GW-INTERNET---
> > upstream /
> >
> > the multiple links are all terminated on our side at 1 router
> (GW-INTERNET)
> > and the upstream isnt 1 router, but same AS
>
> Ah, now I understand.  So this is *one* Upstream, but multiple links
> to multiple routers of the same Upstream?
>
> Yes, in this case, "prepending" and "communities" will not work very well
> (this works better for "multiple ustreams").
>
> > Lets say i have 3 PoS and 2 Giga
> >
> > My manager wakes up each day, checks MRTG, finds that the Giga has some
> room
> > and that PoS is full, so he tells me to move some networks around to
> achieve
> > this, as Gert said above, it is time consuming, specially when moving 1
> /24
> > doesnt do it and half of my day is spent in excel sheets and updating
> > everyone ?
> >
> > What is the correct thing to be done here ?
>
> Can you change the 3 PoS into an additional GigEth?  Depending on the
> local environment, this might cost less - and it's more bandwidth, and
> easier to balance.
>
> Another approach is what you already do: move around more-specific BGP
> announcements (hopefully with "no-export", so that your upstream gets
> them, but not everybody else).  But this gains you only so much.
>
> For outgoing traffic, OER might *really* work :-)
>
> gert
>
> --
> USENET is *not* the non-clickable part of WWW!
>
> //www.muc.de/~gert/
> Gert Doering - Munich, Germany
> gert at greenie.muc.de
> fax: +49-89-35655025
> gert at net.informatik.tu-muenchen.de
>