Re: OT-How many IPV4 routes Cisco 3900 can handle?

It's not really necessary to run the full table in my scenario, but I'm also
using this connection to pass on the full table to our lab where engineers can
play around with the table and practice filtering and get a better feeling
when working with BGP implementations at large ISP customers.

--
Regards,
Rick Mur
CCIE2 #21946 (R&S / Service Provider)
Sr. Support Engineer  IPexpert, Inc.
URL: http://www.IPexpert.com
On 23 dec 2009, at 12:55, <Keegan.Holley_at_sungard.com>
<Keegan.Holley_at_sungard.com> wrote:
>
> Well that's different.  For one your traffic pattern's probably won't grow
that large.  I'm still not sure I understand exactly why you need full tables
though.  For example your other ISP could only advertise you the routes you
need. You could also allow them to send you the full table and filter so if
you want more all you have to do is update your filters.  I wonder if any
carriers are willing to do ORF?  I guess it's moot though.  When I referred to
bw and throughput running out I was talking about growth.  There is enough
memory to support the full table and growth so the ceiling the original poster
should be worried about is the circuit or LAN throughput since the 3800/3900
are mainly DS3 routers.
>
>
>
>
> From:	Rick Mur <rmur_at_ipexpert.com>
> To:	"<Keegan.Holley_at_sungard.com>" <Keegan.Holley_at_sungard.com>
> Cc:	"ccielab_at_groupstudy.com" <ccielab_at_groupstudy.com>, "mzsaeed_at_gmail.com"
<mzsaeed_at_gmail.com>, nobody_at_groupstudy.com, Ryan West <rwest_at_zyedge.com>
> Date:	12/23/2009 03:04 AM
> Subject: 	Re: OT-How many IPV4 routes Cisco 3900 can handle?
> Sent by:	<nobody_at_groupstudy.com>
>
>
>
>
> Redundant ISP connection and I want to route traffic to a couple specific
AS
> numbers out the other link (for remote management purposes).
>
>
> --
> Regards,
>
> Rick Mur
> CCIE2 #21946 (R&S / Service Provider)
> Sr. Support Engineer  IPexpert, Inc.
> URL: http://www.IPexpert.com
>
> On 23 dec 2009, at 03:58, <Keegan.Holley_at_sungard.com>
> <Keegan.Holley_at_sungard.com> wrote:
>
> >
> > What are you using it for?  More importantly why does it have the full
> table?   I worked at a company that did this on a 2600XM with a single T1
just
> to keep an ISP from reclaiming routes.
> >
> >
> >
> > From:                 Rick Mur <rmur_at_ipexpert.com>
> > To:                 <Keegan.Holley_at_sungard.com>
> > Cc:                 Ryan West <rwest_at_zyedge.com>,
"ccielab_at_groupstudy.com"
> <ccielab_at_groupstudy.com>, "mzsaeed_at_gmail.com" <mzsaeed_at_gmail.com>,
> nobody_at_groupstudy.com
> > Date:                 12/22/2009 02:44 AM
> > Subject:                  Re: OT-How many IPV4 routes Cisco 3900 can
handle?
> > Sent by:                 <nobody_at_groupstudy.com>
> >
> >
> >
> >
> > Why's that? I'm running a 2811 here with full BGP table and I still have
all
> the forwarding I need. The CPU would not be affected that much by enabling
> BGP, only during convergence it is (for a couple minutes that is :-)
> >
> >
> > --
> > Regards,
> >
> > Rick Mur
> > CCIE2 #21946 (R&S / Service Provider)
> > Sr. Support Engineer  IPexpert, Inc.
> > URL: http://www.IPexpert.com
> >
> > On 22 dec 2009, at 03:43, <Keegan.Holley_at_sungard.com>
> <Keegan.Holley_at_sungard.com> wrote:
> >
> > > You probably would hit forwarding/bandwidth limits before you hit
routing
> > > table limits.
> > >
> > >
> > >
> > >
> > > From:
> > > Ryan West <rwest_at_zyedge.com>
> > > To:
> > > "mzsaeed_at_gmail.com" <mzsaeed_at_gmail.com>, "ccielab_at_groupstudy.com"
> > > <ccielab_at_groupstudy.com>
> > > Date:
> > > 12/21/2009 05:24 PM
> > > Subject:
> > > RE: OT-How many IPV4 routes Cisco 3900 can handle?
> > > Sent by:
> > > <nobody_at_groupstudy.com>
> > >
> > >
> > >
> > > This a memory consideration.  Since the default memory for the 39xx is
> > > 1GB, it will handle a full Internet feed of 300,000+ routes.
> > >
> > > -ryan
> > >
> > >> -----Original Message-----
> > >> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf
Of
> > >> mzsaeed_at_gmail.com
> > >> Sent: Monday, December 21, 2009 5:07 PM
> > >> To: ccielab_at_groupstudy.com
> > >> Subject: OT-How many IPV4 routes Cisco 3900 can handle?
> > >>
> > >> Hi,
> > >>
> > >> Need help to verify if Cisco 3900 can handle more that 40,000 IPV4
> > >> routes in
> > >> its BGP table?
> > >>
> > >>
> > >> Thanks,
> > >>
> > >> Mohammad Saeed
> > >>
> > >>
> > >> Blogs and organic groups at http://www.ccie.net
> > >>
> > >>