RE: Hardware for 50Mbs BGP feed.WAS Rate Limiting on Cisco Router

[Matthew Huff <mhuff () ox com>]

We have something very similar. We have 2 x 7204VXR/NPE-G1 with 1GB RAM  each with a 50Mb connection to an upstream 
provider with full routes. No cpu or other problems at all.



-----Original Message-----
From: Chris Gotstein [mailto:chris () uplogon com] 
Sent: Friday, July 09, 2010 1:36 PM
To: nanog () nanog org
Subject: Re: Hardware for 50Mbs BGP feed.WAS Rate Limiting on Cisco Router

I think a 7200VXR with NPE-G1 that has 1Gb of ram would work just fine
for you.  We are running a very similar setup, passing about 70Mbs, full
BGP routes, 2 providers and ACLs, only seeing about 20% usage on the CPU
at peak times.

---- ---- ---- ----
Chris Gotstein, Network Engineer, U.P. Logon/Computer Connection U.P.
http://uplogon.com | +1 906 774 4847 | chris () uplogon com

On 7/9/2010 11:43 AM, Dylan Ebner wrote:
> Yesterday we took possession of a free 50Mb connection upgrade from one of our ISPs. The previous connection was 
> 30Mbps with a partial route table via BGP. Other than BGP, the only other complex functions the router performs is 
> access listing the CRYMU Team Bogon table and traffic shaping. We terminate this into a 2811 running 12.4 with 512MB 
> of memory. When the Access lists were applied we peaked the connection at 39Mbps and when the access list was removed 
> we peaked at 43.5Mbps. The CPU was pegged at 65% with the acl and 50% without. Given the recent discussion about 
> 80Mbps and a 7200, what would members here recommend for a 50Mb connection that we expect to grow to 100Mb in the 
> next 18 months. We are also planning on adding netflow collection in the next year as well.
>
> We were think of upgrading to a 3900 series, but it sounds like maybe we should be thinking bigger?
>
> Also, how do members determine if their routers are overloaded. Besides looking at memory and CPU usage are their 
> other statistics they look at? Are their third party tools that provide some insight into the routers condition?
>
>
>
> Dylan Ebner
>
> -----Original Message-----
> From: Alan Bryant [mailto:alan () gtekcommunications com] 
> Sent: Thursday, July 08, 2010 8:33 PM
> To: gordslater () ieee org
> Cc: Murphy, Jay, DOH; nanog () nanog org
> Subject: Re: Rate Limiting on Cisco Router
>
> So you guys would not recommend the traffic shaping route on a 7206
> with a NPE-G1? Is it the processor or memory that would not be able to
> handle it?
>
> I don't necessarily plan on doing anything other than limiting it at
> 80Mbps or whatever it is that we are capping ourselves at at the time.
>
> On Thu, Jul 8, 2010 at 7:13 PM, gordon b slater <gordslater () ieee org> wrote:
> > On Thu, 2010-07-08 at 18:54 -0500, Jack Bates wrote:
> > > underpowered router or poor code
> >
> > Agreed. So which is it?  :)
> >
> > To be fair, some IOS versions were better than others at it in my
> > limited experience of that chassis.
> >
> > Gord
> > --
> > I hold you XAP