> If people are downloading stuff to you 99% of time, then you 
> really DO NOT need
> full routes at all. Just get a default route

In Anthony's case he has 3xT1s to two providers.  In the event that one T1
should fail, or two T1s to the same provider, he would most certainly like
at a minimum partial routes to avoid crushing the remaining T1 (through
various BGP TE methods).

Kris


> On Thu, Jul 31, 2003 at 08:43:13AM -0700, Anthony Guida wrote:
> > Hello,
> > 
> > I work for a smaller ISP in Chicago and we are running
> > a multi-homed BGP environment with 2 backbone
> > providers. Our edge router is a 7206VXR (NPE300) with
> > 256MB of RAM. We have 6 T1s plugged into this router,
> > 3 to each backbone provider. We are also currently
> > taking full BGP feeds from both providers.
> > 
> > I have been noticing somewhat of an increase in CPU
> > and memory usage on the edge router in the past few
> > months and would like to get some assistance on
> > whether or not we should be taking full BGP feeds
> > since I understand this takes up a lot of CPU and
> > memory. Another reason for this performance/latency
> > throughout our network.
> > 
> > According to our MRTG graphs, I can say 99 percent of
> > our traffic is inbound. Since we are an ISP, everyone
> > is downloading images and files more than uploading
> > like a web hosting provider would. What I mean is
> > taking full BGP feeds for outbound traffic really
> > shouldn't matter. We should just take partial or
> > default routes and let our backbone providers decide
> > where to send the outbound traffic. Our inbound
> > traffic is determined through our AS prepending &
> > advertisements config.
> > 
> > I would like to know what is recommended. Should we be
> > accepting full BGP feeds and deal with the CPU & Mem
> > usage? Or should we be taking only partial with a
> > default?
> > What is best practice or what are other network
> > engineers doing with similar environments?
> > 
> > Any information is greatly appreciated.
> > 
> > Thanks,
> > Anthony
> > 
> > 
> > 
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> > 
> ------------------------ANNOUNCEMENT---------------------------------
> > 
> ---------------------------------------------------------------------
> >            ISPCON FALL 2003 - Santa Clara Convention Center
> >      October 20-22 - The Definitive Event Wired and Wireless ISPs
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> > 
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> > 




> 
> 
> ------------------------ANNOUNCEMENT---------------------------------
> ---------------------------------------------------------------------
>            ISPCON FALL 2003 - Santa Clara Convention Center
>      October 20-22 - The Definitive Event Wired and Wireless ISPs
>                             www.ispcon.com
> ----------------------------------------------------------------------
> ----------------------------------------------------------------------
> 
> 




> 
> 


------------------------ANNOUNCEMENT---------------------------------
---------------------------------------------------------------------
           ISPCON FALL 2003 - Santa Clara Convention Center
     October 20-22 - The Definitive Event Wired and Wireless ISPs
                            www.ispcon.com
----------------------------------------------------------------------
----------------------------------------------------------------------

Replies

[isp-bgp] Re: Smaller ISP, do we need full BGP routes?, Haesu