[cisco-bba] 7200 - LNS -> cpu question

[Tassos Chatzithomaoglou]

7200 (NPE-G1)
-------------

Input data
----------
2000 L2TP sessions terminated
netflow running on all input/output interfaces
ospf running
MQC (policy-map) per-user
no fragmentation problem
compression disabled
cef enabled
multicast (sparse) enabled on 5% of sessions
80 mbps input/30 mbps output traffic per interface (x2 for total)

Output data
-----------
CPU Usage = 45-50%

  PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
    5     1604688    119709      13404  0.39%  0.17%  0.15%   0 Check heaps
   29      866208    501989       1725  0.15%  0.07%  0.07%   0 Net Background
   32     4594580    652547       7041  0.71%  0.52%  0.47%   0 Per-Second Jobs
   50     3365384  34128894         98  0.47%  0.45%  0.44%   0 IP Input
   77     3831104   1458694       2626  0.47%  0.48%  0.46%   0 CEF process
  113         264       608        434  0.31%  0.04%  0.01%   2 Virtual Exec
  126     2474188    130138      19012  0.39%  0.31%  0.27%   0 Compute load avg
  138      967284  42665344         22  0.15%  0.12%  0.13%   0 L2X Data Daemon
  140      858168   2895925        296  0.07%  0.08%  0.08%   0 L2TP mgmt daemon
  143     3473816    759334       4574  0.31%  0.35%  0.37%   0 IGMP Input
  145     3866468   2002333       1930  0.31%  0.44%  0.48%   0 PIM Process
  150      485300  20908277         23  0.15%  0.08%  0.07%   0 PPP manager
  151     1042856  25471233         40  0.15%  0.10%  0.11%   0 PPP Events
  161      829188   3242855        255  0.07%  0.06%  0.08%   0 OSPF Router


Question
--------
Is the 45-50% cpu usage normal/expected in our setup?

If yes, what would be the next step? 10000?

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