[cisco-bba] Real life experience with NPE-G1 aggregation numbers

[Dennis Peng]

Heiner Lante [hl at kamp.de] wrote:
> Hi,
> 
> could you please give me a idea, how much traffic you have on that boxes?
> 
> Our experience is, that the npe1g can handle up 
> to 120 Mbit in/and 70 Mbit on the interface to 
> the customers with up to 1500 sessions. With that 
> traffic the cpu load goes up to 60 - 70%.

How many packets per second is this? PPS is generally a more
comparable measure then bit/sec since the average packet size varies
across networks.

Dennis

> The higher the traffic, the higher the load of 
> the boxes. If there is very less traffic, you can 
> handle much more of l2tp sessions.
> 
> We have decided to add a new npe1g for every 100 
> - 120 Mbit outboundtraffic per Box.
> 
> Regards Heiner
> 
> At 13:47 Uhr +0200 03.08.2004, Raymond Huber wrote:
> >
> >Hi,
> >
> >We have 2 NPE-G1 in 7204 VXR which terminating pppoe and l2tp. 512MB Memory
> >At the moment they are handle around 4000 PPPoE Session on 290 L2TP Tunnels
> >at around 17% CPU load.
> >
> >The same amount of sessions are on the second stack of 7301 which also have
> >the same Processor and a Memory of 1GB.
> >The CPU load is 6% higher.
> >
> >So the CPU load is hardly related to the IOS Image which is running.
> >
> >Ok. To your question:
> >
> >Once we testet at around 7000 PPPoE Sessions 250 L2TP Tunnels with a load 
> >of
> >58% , this was a 7301 Router. So it seams, that the 16k Sessions are not
> >possible for our environment.
> >
> >Cheers
> >Raymond
> >
> >-----Urspr?ngliche Nachricht-----
> >Von: cisco-bba-bounces at puck.nether.net
> >[mailto:cisco-bba-bounces at puck.nether.net] Im Auftrag von Paul Grehan
> >Gesendet: Dienstag, 3. August 2004 13:03
> >An: cisco-bba at puck.nether.net
> >Betreff: [cisco-bba] Real life experience with NPE-G1 aggregation numbers
> >
> >Hi All,
> >
> >Just wondering if anyone's got some first hand experience with large
> >termination numbers for the NPE-G1 processor ??
> >
> >16K seems to be an idylic number of PPP sessions (PPPoVPDN, PPPoE &
> >PPPoA)...
> >
> >Thks,
> >
> >-Paul
> >
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