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Cisco 3750G - загрузка 100% Как пофиксить?

Доброго дня. Имеется коммутатор Cisco 3750G, вроде как работает нормально, по графикам в Cacti обычная загрузка от 10% до 50% (в ЧНН). Однако иногда поднимается до максимума (в любое время, не обязательно в ЧНН), подскажите, куда копать, где искать проблему?

 

c3750g#show process cpu sorted
CPU utilization for five seconds: 99%/27%; one minute: 99%; five minutes: 99%
PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
  71     3797276 132416520         28 43.74% 34.26% 32.75%   0 HLFM address lea
180   781684476 985089659        793  9.42% 14.44% 16.78%   0 IP Input
   9    63737447 164957887        386  7.57% 12.42% 11.85%   0 ARP Input
124    10563113 106145109         99  3.55%  3.95%  3.92%   0 Hulc LED Process
   4     7212863    581029      12413  0.77%  0.25%  0.19%   0 Check heaps
  91     1163415   4444482        261  0.30%  0.31%  0.31%   0 hpm counter proc
279     1433405   6937966        206  0.30%  0.17%  0.16%   0 CEF: IPv4 proces
216    28453733  78484561        362  0.30%  0.16%  0.20%   0 HULC DHCP Snoopi
186     3118668  21110960        147  0.30%  0.29%  0.30%   0 Spanning Tree
  57     3093428 237215835         13  0.30%  0.66%  0.72%   0 Fifo Error Detec
  34       89017   4444724         20  0.30%  0.15%  0.12%   0 TTY Background
  66       16467    893895         18  0.15%  0.01%  0.00%   0 HIPC bkgrd proce
219     1616290   4572659        353  0.15%  0.04%  0.05%   0 IGMPSN
144      499849   4444673        112  0.15%  0.07%  0.06%   0 PI MATM Aging Pr
  33       24913    932542         26  0.15%  0.11%  0.10%   0 Logger
132     2132927    893889       2386  0.15%  0.14%  0.15%   0 HQM Stack Proces
  87      817011  42235577         19  0.15%  0.15%  0.19%   0 hpm main process
257       19984    475245         42  0.15%  0.09%  0.07%   0 Syslog
  18           0         1          0  0.00%  0.00%  0.00%   0 IPC Zone Manager
  17          84     74610          1  0.00%  0.00%  0.00%   0 IPC Dynamic Cach
  16           0         1          0  0.00%  0.00%  0.00%   0 IFS Agent Manage
  19       17536   4444762          3  0.00%  0.00%  0.00%   0 IPC Periodic Tim
  15       13197    578644         22  0.00%  0.02%  0.00%   0 EEM ED Syslog
  24       23424   4444755          5  0.00%  0.00%  0.00%   0 Dynamic ARP Insp
  14          35       147        238  0.00%  0.00%  0.00%   0 Entity MIB API
  20           0         1          0  0.00%  0.00%  0.00%   0 IPC Managed Time
  21       17557   4444749          3  0.00%  0.00%  0.00%   0 IPC Deferred Por
  28       16681   4444731          3  0.00%  0.00%  0.00%   0 GraphIt
  22        1495    298307          5  0.00%  0.00%  0.00%   0 IPC Seat Manager
  30           0         1          0  0.00%  0.00%  0.00%   0 Critical Bkgnd
  23           0         1          0  0.00%  0.00%  0.00%   0 IPC Session Serv
  32           0        29          0  0.00%  0.00%  0.00%   0 IDB Work
  25           0         1          0  0.00%  0.00%  0.00%   0 ARP Snoop

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