[c-nsp] CPU load on 7206 with 1200 DSL users

[Charles Hardin]

Just for an FYI, I've got 8k active PPPoE sessions terminating on a Cisco 
NPE-G1. We generally terminate ATM OC3 into these devices while running 
OSPF as the primary IGP for route propagation. I'm seeing around 40% max 
CPU usage on this box currently running under this load for PPPoE. In 
comparison, I've seen one of our Cisco NPE VXR400's running at 3500 active 
PPPoE sessions at about 48% max CPU utilization.

Thanks,
Charles

At 01:06 PM 4/20/2007, Paul Stewart wrote:
>hi there.. on a NPE-1G it should sit around 20-30% range no problem.. if you
>run 12.4.x it might be much higher, not sure if that has been resolved or
>not yet....
>
>Thanks,
>
>Paul
>
>
>-----Original Message-----
>From: cisco-nsp-bounces at puck.nether.net
>[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Antonio Querubin
>Sent: Friday, April 20, 2007 1:56 PM
>To: cisco-nsp at puck.nether.net
>Subject: [c-nsp] CPU load on 7206 with 1200 DSL users
>
>We're considering moving approximately 1200 DSL and a handful of Frame Relay
>users provisioned over 2 DS3s on an aging Redback SMS-500 onto another
>router.  One of the devices under consideration is a Cisco 7206 VXR using
>ATM RBE for the DSL provisioning.  The 7206 VXR currently has a NPE-300
>which we might need to upgrade if we use it for this purpose.
>
>I'm interested in the CPU average and peak loads I can expect with
>approximately that number of users in that configuration or with other
>still-supported NPEs.  We also poll all our devices every 5 minutes via SNMP
>for bandwidth usage data so that can drive the CPU load up a notch.
>Each end-site would be provisioned on a separate subnet/interface with uRPF
>enabled.
>
>Antonio Querubin
>whois:  AQ7-ARIN
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