[GTER] Processamento em 100% - Roteador Cisco 3660

[Danilo Mendonça Cabreira]

Boa tarde, alguém já teve algum problema com o Roteador Cisco 3660
utilizando 100% do processamento onde o processo "Virtual Exec" consome
cerca de 80%?

A própria Cisco tem um material de troubleshooting sobre "High Processor
with Virtual Exec" porém o problema acontece em horários desconexos e dura
aproximadamente 10 minutos, fora do horário de pico da rede.

Atualmente este roteador possui 14 links seriais ponto-a-ponto (2mbps),
OSPF, QoS para Voz e um link Intranet de 45Mbps da Telefônica cuja as
conexões saintes são NATeadas.

Eu acredito que por este equipamento ser antigo, possa existir algum BUG
neste IOS ou mesmo este problema seria o limite de processamento mesmo :(

Em condições normais de uso a média de processamento fica em 60% - 65% e
processo Virtual Exec fica em 0.40% - 2%.


Segue os show's.

*Router>sh proc *
CPU utilization for five seconds: 91%/100%; one minute: 78%; five minutes:
57%
PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
   1 Cwe 6002FADC      4357032    8217253     530 5452/6000   0 Chunk
Manager
   2 Csp 60796168      1219208    1717979     709  924/3000   0 Load Meter
   3 Mwe 63022520            0          1       0 5532/6000   0 chkpt
message ha
   4 Mwe 62BABEFC            0          1       023384/24000  0 EDDRI_MAIN
[.....]
* 241 M*         0         6220       1927    3227 9388/12000  2 Virtual
Exec*

*Router>sh proc cpu sorted 1min*
CPU utilization for five seconds: 94%/100%; one minute: 82%; five minutes:
59%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
  71    30616252  44286352        691  0.52% 20.87% 12.88%   0 IP Input
  44    10230880   8636700       1184  0.26% 11.94%  6.09%   0 Per-Second
Jobs
  50     3987012    156671      25448  0.00%  8.71%  2.84%   0 Per-minute
Jobs
* 241        5160      1590       3245 80.11%  7.13%  1.78%   2 Virtual
Exec     ********** Aqui está o problema
 109      902860  17485524         51  0.00%  5.49%  1.57%   0 DHCPD
Receive
   1     4355524   8216894        530  0.08%  4.51%  1.59%   0 Chunk Manager


*Router>sh proc cpu history
*[......]*
*
                                  1111
    698677655766666676666767666756000023446777677648776777776778
    192520098044843468856181542026000098205199851882693268519133
100  *                            ****
 90  *                            ****
 80  **             *             *#**      ** *   ***  ***    *
 70  #**#*   *  *   ##*****#*  * *##**    *###*#** *#* **##****#
 60 *####**#*################### *###*    *####### #############
 50 ######*######################*###*    ########*#############
 40 ################################## ***########*#############
 30 ##################################*#########################
 20 ############################################################
 10 ############################################################
   0....5....1....1....2....2....3....3....4....4....5....5....6
             0    5    0    5    0    5    0    5    0    5    0
               CPU% per minute (last 60 minutes)
              * = maximum CPU%   # = average CPU%

*Router#sh ver *
Cisco IOS Software, 7200 Software (C7200-ADVENTERPRISEK9-M), Version
12.4(11)T, RELEASE SOFTWARE (fc2)


[ ]'s

Danilo Mendonça Cabreira
RJ Network - Tecnologia Integrada