[cisco-bba] L2TP sessions on 7200

[Anastassios Chatzithomaoglou]

I have read a lot of conversations about 7200 and the max number of l2tp sessions it can 
support, but all the answers are making me think that there is something wrong with my 
case. My router doesn't even seem capable of reaching 1000 sessions.

I have a 7206 (NPE-300) and with 550 sessions it reaches 50% - 60% cpu load.
Is there anything i can do in order to decrease it?
"ip cef" doesn't seem to do anything...



IOS (tm) 7200 Software (C7200-IS-M), Version 12.2(15)T5,  RELEASE SOFTWARE (fc1)
....
cisco 7206VXR (NPE300) processor (revision D) with 229376K/65536K bytes of memory.
Processor board ID 21275620
R7000 CPU at 262Mhz, Implementation 39, Rev 2.1, 256KB L2, 2048KB L3 Cache
6 slot VXR midplane, Version 2.1
....

router#sh proc cpu
CPU utilization for five seconds: 51%/14%; one minute: 56%; five minutes: 56%
...
   45     3673508  23757648        154 13.81% 14.27% 14.10%   0 IP Input
...
  119     5703560  21918620        260 17.22% 20.33% 20.45%   0 L2X Data Daemon
...
  143      610208     28956      21073  1.79%  1.76%  1.76%   0 VTEMPLATE Backgr
...

This is what worries me most:

router#sh interfaces stat
FastEthernet0/0
           Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                Processor     180987   70971343     189373   75804748
              Route cache      70067   34190251      88442   35201066
                    Total     251054  105161594     277815  111005814

-- 
***********************************
    Chatzithomaoglou Anastasios
Network Design & Operations Center
           FORTHnet S.A.
       <achatz at forthnet.gr>
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