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High CPU usage on 2960-X

cerickson
Level 1
Level 1

Hello, 

 

We are finding a very high CPU usage on one of our main switches and not seeming to find a reason to explain it.  It is likely the source of our network issues.  We have many of these switches in use, but only this one in particular is giving us problems.  I was directed not to reboot the switch as a troubleshooting measure, but I am not seeing any improvement on the two schools it is affecting otherwise.

 

Switch is a Cisco Catalyst 2960-X 48FPD-L running software version 15.0(2a)EX5 with the CPU processes to follow:

 

JB_MDF#show  proc  cpu
CPU  utilization  for  five  seconds:  98%/21%;  one  minute:  99%;  five  minutes:  98%
  PID  Runtime(ms)  Invoked  uSecs  5Sec  1Min  5Min  TTY  Process  
  1  691  10713  64  0.00%  0.00%  0.00%  0  Chunk  Manager  
  2  1018151  2729226  373  0.00%  0.00%  0.00%  0  Load  Meter  
  3  774  4940  156  0.00%  0.00%  0.00%  0  hulc_entropy_thr  
  4  5416  117499  46  0.00%  0.00%  0.00%  0  DHCPD  Timer  
  5  0  1  0  0.00%  0.00%  0.00%  0  Retransmission  o  
  6  0  1  0  0.00%  0.00%  0.00%  0  IPC  ISSU  Dispatc  
  7  31895940  2849631  11193  0.00%  0.24%  0.20%  0  Check  heaps  
  8  3610  4027  896  0.00%  0.00%  0.00%  0  Pool  Manager  
  9  0  1  0  0.00%  0.00%  0.00%  0  DiscardQ  Backgro  
  10  0  2  0  0.00%  0.00%  0.00%  0  Timers  
  11  340  15505  21  0.00%  0.00%  0.00%  0  WATCH_AFS  
  12  1061376  54352732  19  0.00%  0.00%  0.00%  0  HUSB  Console  
  13  0  1  0  0.00%  0.00%  0.00%  0  License  Client  N  
  14  3483  227159  15  0.00%  0.00%  0.00%  0  IPC  Dynamic  Cach  
  15  0  1  0  0.00%  0.00%  0.00%  0  Image  License  br  
  16  7112500  227033  31328  0.00%  0.03%  0.00%  0  Licensing  Auto  U  
  17  16610252  27434048  605  0.12%  0.23%  0.27%  0  ARP  Input  
  18  1500530  14126131  106  0.00%  0.00%  0.00%  0  ARP  Background  
  19  0  1  0  0.00%  0.00%  0.00%  0  AAA_SERVER_DEADT  
  20  0  1  0  0.00%  0.00%  0.00%  0  Policy  Manager  
  21  31  15  2066  0.00%  0.00%  0.00%  0  Entity  MIB  API  
  22  0  1  0  0.00%  0.00%  0.00%  0  IFS  Agent  Manage  
  23  42214  2714973  15  0.00%  0.00%  0.00%  0  IPC  Event  Notifi  
  24  277563  13246366  20  0.00%  0.00%  0.00%  0  IPC  Mcast  Pendin  
  25  0  1  0  0.00%  0.00%  0.00%  0  IPC  Session  Serv  
  26  1059  691  1532  0.36%  0.13%  0.09%  1  SSH  Process  
  27  311623  13246369  23  0.00%  0.00%  0.00%  0  IPC  Periodic  Tim  
  28  251585  13246384  18  0.00%  0.00%  0.00%  0  IPC  Deferred  Por  
  29  0  1  0  0.00%  0.00%  0.00%  0  IPC  Process  leve  
  30  0  5  0  0.00%  0.00%  0.00%  0  IPC  Seat  Manager  
  31  9187  779372  11  0.00%  0.00%  0.00%  0  IPC  Check  Queue  
  32  14  29  482  0.00%  0.00%  0.00%  0  IPC  Seat  RX  Cont  
  33  0  1  0  0.00%  0.00%  0.00%  0  IPC  Seat  TX  Cont  
  34  30043  1364623  22  0.00%  0.00%  0.00%  0  IPC  Keep  Alive  M  
  35  178889  2722675  65  0.00%  0.00%  0.00%  0  IPC  Loadometer  
  36  49  4  12250  0.00%  0.00%  0.00%  0  PrstVbl  
  37  0  1  0  0.00%  0.00%  0.00%  0  Crash  writer  
  38  0  1  0  0.00%  0.00%  0.00%  0  Exception  contro  
  39  2717  5786  469  0.00%  0.00%  0.00%  0  crypto  sw  pk  pro  
  40  0  3  0  0.00%  0.00%  0.00%  0  License  IPC  stat  
  41  0  1  0  0.00%  0.00%  0.00%  0  License  IPC  serv  
  42  256532  13636411  18  0.00%  0.00%  0.00%  0  GraphIt  
  43  0  1  0  0.00%  0.00%  0.00%  0  client_entity_se  
  44  0  2  0  0.00%  0.00%  0.00%  0  SMART  
  45  0  2  0  0.00%  0.00%  0.00%  0  XML  Proxy  Client  
  46  0  1  0  0.00%  0.00%  0.00%  0  ARP  Snoop  
  47  147794  13550163  10  0.00%  0.00%  0.00%  0  Dynamic  ARP  Insp  
  PID  Runtime(ms)  Invoked  uSecs  5Sec  1Min  5Min  TTY  Process
  48  0  1  0  0.00%  0.00%  0.00%  0  Critical  Bkgnd  
  49  3011401  14548056  206  0.05%  0.03%  0.05%  0  Net  Background  
  50  0  1  0  0.00%  0.00%  0.00%  0  IDB  Work  
  51  6738  31001  217  0.00%  0.00%  0.00%  0  Logger  
  52  172213  13550090  12  0.00%  0.00%  0.00%  0  TTY  Background  
  53  15  142  105  0.00%  0.00%  0.00%  0  SXP  CORE  
  54  0  1  0  0.00%  0.00%  0.00%  0  Cat6k  NTI  ICC  pr  
  55  4  9  444  0.00%  0.00%  0.00%  0  IF-MGR  control  p  
  56  10  1101  9  0.00%  0.00%  0.00%  0  IF-MGR  event  pro  
  57  0  1  0  0.00%  0.00%  0.00%  0  ICC  Nego  
  58  0  1  0  0.00%  0.00%  0.00%  0  Inode  Table  Dest  
  59  0  3  0  0.00%  0.00%  0.00%  0  IP  Admission  HA  
  60  45892  826387  55  0.00%  0.00%  0.00%  0  Net  Input  
  61  1702020  2729384  623  0.05%  0.02%  0.00%  0  Compute  load  avg  
  62  2543386  230238  11046  0.12%  0.01%  0.00%  0  Per-minute  Jobs  
  63  8391490  13637294  615  0.12%  0.12%  0.11%  0  Per-Second  Jobs  
  64  0  1  0  0.00%  0.00%  0.00%  0  AggMgr  Process  
  65  1711  38903  43  0.00%  0.00%  0.00%  0  Transport  Port  A  
  66  1219459  3997648  305  0.05%  0.00%  0.00%  0  HC  Counter  Timer  
  67  43052202  117608  366090  0.00%  0.07%  0.28%  0  SFF8472  
  68  0  132  0  0.00%  0.00%  0.00%  0  EEM  ED  Identity  
  69  0  76  0  0.00%  0.00%  0.00%  0  EEM  ED  MAT  
  70  291544  7003447  41  0.00%  0.00%  0.00%  0  EEM  ED  ND  
  71  1145  13  88076  0.00%  0.00%  0.00%  0  USB  Startup  
  72  0  2  0  0.00%  0.00%  0.00%  0  APM  86392  RTC  
  73  4139465  251343727  16  0.00%  0.02%  0.00%  0  DownWhenLooped  
  74  0  1  0  0.00%  0.00%  0.00%  0  HRPC  power_mgmt  
  75  0  2  0  0.00%  0.00%  0.00%  0  Porter  Power  Man  
  76  0  1  0  0.00%  0.00%  0.00%  0  HULC  ACL  Tcam  Me  
  77  0  1  0  0.00%  0.00%  0.00%  0  Hulc  EEM  Process  
  78  0  3  0  0.00%  0.00%  0.00%  0  HRPC  lpip  reques  
  79  0  2  0  0.00%  0.00%  0.00%  0  HLPIP  Sync  Proce  
  80  0  1  0  0.00%  0.00%  0.00%  0  HRPC  hnetwpol  re  
  81  0  1  0  0.00%  0.00%  0.00%  0  HRPC  EnergyWise  
  82  0  1  0  0.00%  0.00%  0.00%  0  HRPC  actual  powe  
  83  0  1  0  0.00%  0.00%  0.00%  0  HRPC  ipadm  reque  
  84  8577013  453889098  18  0.00%  0.06%  0.05%  0  Draught  link  sta  
  85  14282  454177  31  0.00%  0.00%  0.00%  0  PSP  Timer  
  86  0  1  0  0.00%  0.00%  0.00%  0  HULC  QM  Tcam  Mem  
  87  4  8  500  0.00%  0.00%  0.00%  0  Stack  DI  Update  
  88  2345  45513  51  0.00%  0.00%  0.00%  0  OBFL  TEMP  obfl0  
  89  0  1  0  0.00%  0.00%  0.00%  0  HRPC  asic-stats  
  90  527777  5427025  97  0.00%  0.00%  0.00%  0  Adjust  Regions  
  91  522923  27197797  19  0.00%  0.00%  0.00%  0  FlexStack  Hotswa  
  92  33931916  592996257  57  0.60%  0.24%  0.23%  0  RedEarth  Tx  Mana  
  93  38844973  595252448  65  0.24%  0.23%  0.23%  0  RedEarth  Rx  Mana  
  94  279569  2729226  102  0.00%  0.00%  0.00%  0  HULC  Thermal  Pro  
  95  0  1  0  0.00%  0.00%  0.00%  0  HRPC  hsm  request  
  96  0  23  0  0.00%  0.00%  0.00%  0  Stack  Mgr  
  PID  Runtime(ms)  Invoked  uSecs  5Sec  1Min  5Min  TTY  Process
  97  671  63  10650  0.00%  0.00%  0.00%  0  Stack  Mgr  Notifi  
  98  674170  6803846  99  0.00%  0.00%  0.00%  0  hrpc  ->  response  
  99  262555  19324108  13  0.00%  0.00%  0.00%  0  hrpc  ->  request  
  100  2460176  19228959  127  0.00%  0.00%  0.00%  0  hrpc  <-  response  
  101  0  3  0  0.00%  0.00%  0.00%  0  HRPC  hcomp  reque  
  102  1038091  67929508  15  0.00%  0.00%  0.00%  0  apm86xxx_enet_pr  
  103  0  19  0  0.00%  0.00%  0.00%  0  HULC  Device  Mana  
  104  26250  96727  271  0.00%  0.00%  0.00%  0  HRPC  hdm  non  blo  
  105  0  7  0  0.00%  0.00%  0.00%  0  HRPC  hdm  blockin  
  106  754  22  34272  0.00%  0.00%  0.00%  0  HRPC  cfg_backup  
  107  80843  2714963  29  0.00%  0.00%  0.00%  0  HIPC  bkgrd  proce  
  108  0  1  0  0.00%  0.00%  0.00%  0  IPC  RTTYC  Messag  
  109  0  1  0  0.00%  0.00%  0.00%  0  RTTYC  Flush  
  110  254  1982  128  0.00%  0.00%  0.00%  0  Hulc  Port-Securi  
  111  18  241  74  0.00%  0.00%  0.00%  0  HRPC  hpsecure  re  
  112  0  1  0  0.00%  0.00%  0.00%  0  HRPC  hrcmd  reque  
  113  3  24  125  0.00%  0.00%  0.00%  0  HRPC  emac  reques  
  114  538  4013  134  0.00%  0.00%  0.00%  0  HRPC  hulc  misc  r  
  115  69407  4538008  15  0.00%  0.00%  0.00%  0  HVLAN  main  bkgrd  
  116  81  3171  25  0.00%  0.00%  0.00%  0  SSH  Event  handle  
  117  0  2  0  0.00%  0.00%  0.00%  0  Vlan  shutdown  Pr  
  118  13  89  146  0.00%  0.00%  0.00%  0  HRPC  vlan  reques  
  119  0  1  0  0.00%  0.00%  0.00%  0  HULC  VLAN  REF  Ba  
  120  712251  9257285  76  0.00%  0.00%  0.00%  0  HRPC  ilp  request  
  121  313535  13550098  23  0.00%  0.00%  0.00%  0  Hulc  ILP  Alchemy  
  122  1237134  908063  1362  0.00%  0.01%  0.00%  0  Strider  Tcam  Mem  
  123  424638  2293830  185  0.00%  0.00%  0.00%  0  HRPC  hlfm  reques  
  124  65580059  350891197  186  0.90%  0.65%  0.70%  0  HLFM  address  lea  
  125  443779  13550066  32  0.00%  0.00%  0.00%  0  HLFM  aging  proce  
  126  33949  3731425  9  0.00%  0.00%  0.00%  0  HLFM  address  ret  
  127  0  1  0  0.00%  0.00%  0.00%  0  HULC  PM  Vector  P  
  128  0  1  0  0.00%  0.00%  0.00%  0  HPM  Msg  Retry  Pr  
  129  0  3  0  0.00%  0.00%  0.00%  0  OBFL  Cfg  Dispatc  
  130  48014236  292091497  164  0.30%  0.30%  0.30%  0  hpm  main  process  
  131  1115  3386  329  0.00%  0.00%  0.00%  0  HPM  Stack  Sync  P  
  132  451  1061  425  0.00%  0.00%  0.00%  0  HRPC  pm  request  
  133  0  3  0  0.00%  0.00%  0.00%  0  HPM  if_num  mappi  
  134  106143083  13636394  7783  0.66%  0.74%  0.72%  0  hpm  counter  proc  
  135  2829101  17797213  158  0.00%  0.02%  0.00%  0  HRPC  pm-counters  
  136  11  21  523  0.00%  0.00%  0.00%  0  hpm  vp  events  ca  
  137  2161  46952  46  0.00%  0.00%  0.00%  0  HRPC  hcmp  reques  
  138  3293  5441  605  0.00%  0.00%  0.00%  0  HCEF  ADJ  Refresh  
  139  0  1  0  0.00%  0.00%  0.00%  0  HACL  Queue  Proce  
  140  0  5  0  0.00%  0.00%  0.00%  0  HRPC  acl  request  
  141  7  100  70  0.00%  0.00%  0.00%  0  HACL  Acl  Manager  
  142  0  1  0  0.00%  0.00%  0.00%  0  HRPC  aim  request  
  143  0  1  0  0.00%  0.00%  0.00%  0  HRPC  backup  inte  
  144  3  3  1000  0.00%  0.00%  0.00%  0  HRPC  cdp  request  
  145  10  31  322  0.00%  0.00%  0.00%  0  HULC  CISP  Proces  
  PID  Runtime(ms)  Invoked  uSecs  5Sec  1Min  5Min  TTY  Process
  146  24596  297251  82  0.00%  0.00%  0.00%  0  HRPC  dot1x  reque  
  147  3  37  81  0.00%  0.00%  0.00%  0  Dot1X  Msg  Retry  
  148  44952  213131  210  0.00%  0.00%  0.00%  0  HULC  DOT1X  Proce  
  149  0  3  0  0.00%  0.00%  0.00%  0  HRPC  lldp  reques  
  150  0  3  0  0.00%  0.00%  0.00%  0  HRPC  system  mtu  
  151  0  4  0  0.00%  0.00%  0.00%  0  HRPC  rep  request  
  152  4  9  444  0.00%  0.00%  0.00%  0  REP  Helper  Proc  
  153  0  1  0  0.00%  0.00%  0.00%  0  HRPC  sdm  request  
  154  0  1  0  0.00%  0.00%  0.00%  0  SMI  MSG  Retry  Pr  
  155  0  5  0  0.00%  0.00%  0.00%  0  HRPC  Smart  Insta  
  156  4108112  66807374  61  0.05%  0.08%  0.06%  0  Hulc  Storm  Contr  
  157  0  2  0  0.00%  0.00%  0.00%  0  HSTP  Sync  Proces  
  158  378058  1930043  195  0.00%  0.00%  0.00%  0  HRPC  stp_cli  req  
  159  30518  246315  123  0.00%  0.00%  0.00%  0  HRPC  stp_state_s  
  160  0  2  0  0.00%  0.00%  0.00%  0  S/W  Bridge  Proce  
  161  0  30  0  0.00%  0.00%  0.00%  0  HRPC  hudld  reque  
  162  0  1  0  0.00%  0.00%  0.00%  0  HRPC  vqpc  reques  
  163  51  259  196  0.00%  0.00%  0.00%  0  HRPC  hled  reques  
  164  2845488462  335832663  8472  18.73%  18.08%  19.58%  0  Hulc  LED  Process  
  165  26783215  10001726  2677  0.24%  0.32%  0.34%  0  HL3U  bkgrd  proce  
  166  598089  5480412  109  0.00%  0.00%  0.00%  0  HRPC  hl3u  reques  
  167  492282  3113518  158  0.00%  0.00%  0.00%  0  HIPV6  bkgrd  proc  
  168  594411  5452997  109  0.00%  0.00%  0.00%  0  HRPC  IPv6  Unicas  
  169  0  1  0  0.00%  0.00%  0.00%  0  HRPC  obfl  reques  
  170  0  1  0  0.00%  0.00%  0.00%  0  IPC  Zone  Manager  
  171  0  1  0  0.00%  0.00%  0.00%  0  HRPC  dtp  request  
  172  0  1  0  0.00%  0.00%  0.00%  0  HRPC  show_forwar  
  173  0  5  0  0.00%  0.00%  0.00%  0  HRPC  snmp  reques  
  174  0  1  0  0.00%  0.00%  0.00%  0  HULC  SNMP  Proces  
  175  50953392  2714324  18772  0.42%  0.36%  0.36%  0  HQM  Stack  Proces  
  176  15326271  10835141  1414  0.12%  0.10%  0.12%  0  HRPC  qos  request  
  177  3  3  1000  0.00%  0.00%  0.00%  0  HRPC  span  reques  
  178  53  270  196  0.00%  0.00%  0.00%  0  HRPC  system  post  
  179  0  9  0  0.00%  0.00%  0.00%  0  Hulc  Reload  Mana  
  180  0  1  0  0.00%  0.00%  0.00%  0  Hulc  Blue  Beacon  
  181  5681  16701  340  0.00%  0.00%  0.00%  0  HRPC  hrcli-event  
  182  226  1232  183  0.00%  0.00%  0.00%  0  HRPC  rfs  request  
  183  0  1  0  0.00%  0.00%  0.00%  0  HRFS  OIR  Proc  
  184  166778  4548710  36  0.00%  0.00%  0.00%  0  Power  RPS  Proces  
  185  53260  138651  384  0.00%  0.00%  0.00%  0  HL2MCM  
  186  28  19  1473  0.00%  0.00%  0.00%  0  HL2MCM  
  187  465  12382  37  0.00%  0.00%  0.00%  0  AAA  Server  
  188  0  1  0  0.00%  0.00%  0.00%  0  AAA  ACCT  Proc  
  189  0  1  0  0.00%  0.00%  0.00%  0  ACCT  Periodic  Pr  
  190  0  1  0  0.00%  0.00%  0.00%  0  AAA  System  Acct  
  191  0  1  0  0.00%  0.00%  0.00%  0  AUTH  POLICY  Fram  
  192  617550  13628427  45  0.00%  0.00%  0.00%  0  Auth  Manager  
  193  0  1  0  0.00%  0.00%  0.00%  0  Auth-proxy  AAA  B  
  194  1256  45487  27  0.00%  0.00%  0.00%  0  IP  Admin  SM  Proc  
  PID  Runtime(ms)  Invoked  uSecs  5Sec  1Min  5Min  TTY  Process
  195  16952084  23434516  723  0.12%  0.13%  0.12%  0  CDP  Protocol  
  197  3913191  31518681  124  0.00%  0.07%  0.10%  0  DHCPD  Receive  
  198  0  2  0  0.00%  0.00%  0.00%  0  CMD  HANDLER  
  199  0  2  0  0.00%  0.00%  0.00%  0  AAA  Dictionary  R  
  200  4679  113718  41  0.00%  0.00%  0.00%  0  DHCP  Snooping  
  201  0  1  0  0.00%  0.00%  0.00%  0  DHCP  Snooping  db  
  202  0  2  0  0.00%  0.00%  0.00%  0  Dot1x  Mgr  Proces  
  203  0  1  0  0.00%  0.00%  0.00%  0  EAP  Framework  
  204  0  1  0  0.00%  0.00%  0.00%  0  EAP  Test  
  205  0  2  0  0.00%  0.00%  0.00%  0  CEF  switching  ba  
  206  116459  97374  1195  0.05%  0.00%  0.00%  0  IP  ARP  Adjacency  
  207  15115037  350889367  43  0.00%  0.01%  0.00%  0  IP  ARP  Retry  Age  
  208  692212549  441330784  1568  38.42%  38.80%  37.78%  0  IP  Input  
  209  0  1  0  0.00%  0.00%  0.00%  0  ICMP  event  handl  
  210  1524620  26116726  58  0.00%  0.00%  0.00%  0  IP  ARP  Track  
  211  0  2  0  0.00%  0.00%  0.00%  0  ADJ  NSF  process  
  212  0  1  0  0.00%  0.00%  0.00%  0  IPv6  ping  proces  
  214  0  2  0  0.00%  0.00%  0.00%  0  REP  Topology  cha  
  215  0  17  0  0.00%  0.00%  0.00%  0  SMI  Director  DB  
  216  17460  781296  22  0.00%  0.00%  0.00%  0  SMI  CDP  Update  H  
  217  0  1  0  0.00%  0.00%  0.00%  0  SMI  Backup  Proce  
  218  0  2  0  0.00%  0.00%  0.00%  0  SMI  IBC  server  p  
  219  0  1  0  0.00%  0.00%  0.00%  0  SMI  IBC  client  p  
  220  0  2  0  0.00%  0.00%  0.00%  0  SMI  IBC  Download  
  221  66849898  155685605  429  0.60%  0.71%  0.74%  0  Spanning  Tree  
  222  62158  227429  273  0.00%  0.00%  0.00%  0  Spanning  Tree  St  
  223  5751  1123  5121  0.00%  0.00%  0.00%  0  802.1x  switch  
  224  0  1  0  0.00%  0.00%  0.00%  0  802.1x  Webauth  F  
  225  1812769  1568187  1155  0.00%  0.00%  0.00%  0  DTP  Protocol  
  226  0  5  0  0.00%  0.00%  0.00%  0  HRPC  IPv6  Host  r  
  227  0  3  0  0.00%  0.00%  0.00%  0  IPv6  Platform  Ho  
  228  0  1  0  0.00%  0.00%  0.00%  0  HRPC  dai  request  
  229  0  1  0  0.00%  0.00%  0.00%  0  HULC  DAI  Process  
  230  0  1  0  0.00%  0.00%  0.00%  0  HRPC  power  down  
  231  0  1  0  0.00%  0.00%  0.00%  0  HRPC  ip  device  t  
  232  0  1  0  0.00%  0.00%  0.00%  0  HRPC  ip  source  g  
  233  0  1  0  0.00%  0.00%  0.00%  0  HULC  IP  Source  g  
  234  3  4  750  0.00%  0.00%  0.00%  0  HRPC  sisf  reques  
  235  0  3  0  0.00%  0.00%  0.00%  0  HULC  SISF  Proces  
  236  0  1  0  0.00%  0.00%  0.00%  0  HULC  SISF  Source  
  237  5485400  13549643  404  0.12%  0.10%  0.11%  0  PI  MATM  Aging  Pr  
  238  24114943  135914355  177  0.05%  0.16%  0.12%  0  UDLD  
  239  13763  454874  30  0.00%  0.00%  0.00%  0  Port-Security  
  240  0  3  0  0.00%  0.00%  0.00%  0  Switch  Backup  In  
  241  0  2  0  0.00%  0.00%  0.00%  0  IP  Host  Track  Pr  
  242  0  1  0  0.00%  0.00%  0.00%  0  Link  State  Group  
  243  2892  227156  12  0.00%  0.00%  0.00%  0  MMN  bkgrd  proces  
  244  15739  1362089  11  0.00%  0.00%  0.00%  0  Ethchnl  
  245  106359  20241  5254  0.00%  0.00%  0.00%  0  VMATM  Callback  
  PID  Runtime(ms)  Invoked  uSecs  5Sec  1Min  5Min  TTY  Process
  246  18085  252764  71  0.00%  0.00%  0.00%  0  CEF  background  p  
  247  0  1  0  0.00%  0.00%  0.00%  0  fib_fib_bfd_sb  e  
  248  0  1  0  0.00%  0.00%  0.00%  0  IP  IRDP  
  249  21  4  5250  0.00%  0.00%  0.00%  0  CEF  RF  HULC  Conv  
  250  0  2  0  0.00%  0.00%  0.00%  0  XDR  background  p  
  251  130318  473551  275  0.00%  0.00%  0.00%  0  XDR  mcast  
  257  27021  1362103  19  0.00%  0.00%  0.00%  0  IP  ACL  XDR  LC  Ba  
  258  0  1  0  0.00%  0.00%  0.00%  0  Critical  Auth  
  259  3292  40241  81  0.00%  0.00%  0.00%  0  TCP  Timer  
  260  4625  27335  169  0.00%  0.00%  0.00%  0  TCP  Protocols  
  261  125007  15359995  8  0.00%  0.00%  0.00%  0  Socket  Timers  
  262  308290  452668  681  0.00%  0.00%  0.00%  0  HTTP  CORE  
  263  3449  170562  20  0.00%  0.00%  0.00%  0  Cluster  L2  
  264  17215  1362087  12  0.00%  0.00%  0.00%  0  Cluster  RARP  
  265  103468  2310799  44  0.00%  0.00%  0.00%  0  Cluster  Base  
  266  0  2  0  0.00%  0.00%  0.00%  0  Dot1x  Supplicant  
  267  0  2  0  0.00%  0.00%  0.00%  0  Dot1x  Supplicant  
  268  0  2  0  0.00%  0.00%  0.00%  0  Dot1x  Supplicant  
  269  0  2  0  0.00%  0.00%  0.00%  0  Routing  Topology  
  270  3  3  1000  0.00%  0.00%  0.00%  0  Flow  Exporter  Ti  
  272  0  1  0  0.00%  0.00%  0.00%  0  RARP  Input  
  273  16  15  1066  0.00%  0.00%  0.00%  0  IP  RIB  Update  
  274  5439  26167  207  0.00%  0.00%  0.00%  0  HRPC  hl2mcm  igmp  
  275  10  127  78  0.00%  0.00%  0.00%  0  HRPC  hl2mcm  mlds  
  276  3  18  166  0.00%  0.00%  0.00%  0  static  
  277  0  1  0  0.00%  0.00%  0.00%  0  IPv6  RIB  Event  H  
  278  0  1  0  0.00%  0.00%  0.00%  0  MAB  Framework  
  279  364548  1362112  267  0.00%  0.00%  0.00%  0  QoS  stats  proces  
  280  2999  227157  13  0.00%  0.00%  0.00%  0  DHCPD  Database  
  281  0  2  0  0.00%  0.00%  0.00%  0  REP  LSL  Proc  
  282  0  2  0  0.00%  0.00%  0.00%  0  REP  BPA/EPA  Proc  
  283  0  3  0  0.00%  0.00%  0.00%  0  SNMP  Timers  
  284  0  4  0  0.00%  0.00%  0.00%  0  HRPC  dhcp  snoopi  
  285  4  5  800  0.00%  0.00%  0.00%  0  HULC  DHCP  Snoopi  
  286  814  2355  345  0.00%  0.00%  0.00%  0  IGMPSN  L2MCM  
  287  23342  455025  51  0.00%  0.00%  0.00%  0  IGMPSN  MRD  
  288  215730  1248522  172  0.00%  0.00%  0.00%  0  IGMPSN  
  289  0  1  0  0.00%  0.00%  0.00%  0  IGMPQR  
  290  0  3  0  0.00%  0.00%  0.00%  0  L2TRACE  SERVER  
  291  2042569  21609142  94  0.00%  0.01%  0.00%  0  Inline  Power  
  292  11837386  29903640  395  0.00%  0.05%  0.05%  0  Marvell  wk-a  Pow  
  293  639  2355  271  0.00%  0.00%  0.00%  0  MLDSN  L2MCM  
  294  0  1  0  0.00%  0.00%  0.00%  0  MRD  
  295  0  1  0  0.00%  0.00%  0.00%  0  MLD_SNOOP  
  296  0  2  0  0.00%  0.00%  0.00%  0  AAA  Cached  Serve  
  297  2017  7584  265  0.00%  0.00%  0.00%  0  NIST  rng  proc  
  298  0  2  0  0.00%  0.00%  0.00%  0  ENABLE  AAA  
  299  0  3  0  0.00%  0.00%  0.00%  0  LDAP  process  
  300  0  2  0  0.00%  0.00%  0.00%  0  LINE  AAA  
  PID  Runtime(ms)  Invoked  uSecs  5Sec  1Min  5Min  TTY  Process
  301  23857  402352  59  0.00%  0.00%  0.00%  0  LOCAL  AAA  
  302  0  2  0  0.00%  0.00%  0.00%  0  EPM  MAIN  PROCESS  
  303  7313454  20253558  361  0.12%  0.13%  0.12%  0  CEF:  IPv4  proces  
  304  0  2  0  0.00%  0.00%  0.00%  0  TPLUS  
  306  0  2  0  0.00%  0.00%  0.00%  0  crypto  engine  pr  
  307  0  1  0  0.00%  0.00%  0.00%  0  encrypt  proc  
  308  454  11772  38  0.00%  0.00%  0.00%  0  Crypto  CA  
  309  0  1  0  0.00%  0.00%  0.00%  0  Crypto  PKI-CRL  
  310  98  10  9800  0.00%  0.00%  0.00%  0  HRPC  x_setup  req  
  311  0  2  0  0.00%  0.00%  0.00%  0  REP  Switch  Helpe  
  312  0  1  0  0.00%  0.00%  0.00%  0  Licensing  MIB  pr  
  313  0  58  0  0.00%  0.00%  0.00%  0  VTP  Trap  Process  
  314  1549  48053  32  0.00%  0.00%  0.00%  0  ASP  Process  Crea  
  315  3080  57165  53  0.00%  0.00%  0.00%  0  AAA  SEND  STOP  EV  
  316  0  1  0  0.00%  0.00%  0.00%  0  Test  AAA  Client  
  317  0  2  0  0.00%  0.00%  0.00%  0  DHCP  Security  He  
  318  1025  19606  52  0.00%  0.00%  0.00%  0  EEM  ED  Syslog  
  319  0  1  0  0.00%  0.00%  0.00%  0  Syslog  Traps  
  320  8079  2225631  3  0.00%  0.00%  0.00%  0  FEX  Logger  Proce  
  321  0  1  0  0.00%  0.00%  0.00%  0  HCD  Process  
  322  3564164  13915  256138  0.00%  0.00%  0.00%  0  HRPC  cable  diagn  
  323  2081  42  49547  0.00%  0.00%  0.00%  0  ADJ  background  
  324  0  2  0  0.00%  0.00%  0.00%  0  DiagCard2/-1  
  325  0  1  0  0.00%  0.00%  0.00%  0  Online  Diag  EEM  
  326  6627802  100878280  65  0.00%  0.00%  0.00%  0  PM  Callback  
  327  0  1  0  0.00%  0.00%  0.00%  0  HULC  FNF  
  328  1495  130  11500  0.00%  0.00%  0.00%  0  Collection  proce  
  329  25420  1089715  23  0.00%  0.00%  0.00%  0  dhcp  snooping  sw  
  330  0  3  0  0.00%  0.00%  0.00%  0  SNMP  Traps  
  331  0  25  0  0.00%  0.00%  0.00%  0  EEM  Server  
  332  4  2  2000  0.00%  0.00%  0.00%  0  Call  Home  proces  
  333  0  2  0  0.00%  0.00%  0.00%  0  EEM  Policy  Direc  
  334  67  72  930  0.00%  0.00%  0.00%  0  OBFL  MSG  obfl0  
  335  0  2  0  0.00%  0.00%  0.00%  0  EEM  ED  Config  
  336  0  3  0  0.00%  0.00%  0.00%  0  EEM  ED  Env  
  337  0  3  0  0.00%  0.00%  0.00%  0  EM  ED  GOLD  
  338  0  3  0  0.00%  0.00%  0.00%  0  EEM  ED  OIR  
  339  0  3  0  0.00%  0.00%  0.00%  0  EEM  ED  Test  
  340  17288  395999  43  0.00%  0.00%  0.00%  0  EEM  ED  Timer  
  341  1277  15533  82  0.00%  0.00%  0.00%  0  Syslog  
  342  206  89  2314  0.00%  0.00%  0.00%  0  RBM  CORE  
  343  0  1  0  0.00%  0.00%  0.00%  0  tHUB  
  344  9694  227162  42  0.00%  0.00%  0.00%  0  Call  Home  Timer  
  345  36  203  177  0.00%  0.00%  0.00%  0  HRPC  eee  request  
  346  13250  227156  58  0.00%  0.00%  0.00%  0  hulc_eee_monitor  
  347  0  2  0  0.00%  0.00%  0.00%  0  STP  FAST  TRANSIT  
  348  0  14  0  0.00%  0.00%  0.00%  0  CSRT  RAPID  TRANS  
  349  91506  350306  261  0.00%  0.00%  0.00%  0  VLAN  Manager  
  350  1181  663  1781  0.00%  0.00%  0.00%  0  SpanTree  Helper  
  PID  Runtime(ms)  Invoked  uSecs  5Sec  1Min  5Min  TTY  Process
  351  0  1  0  0.00%  0.00%  0.00%  0  DiagCard1/-1  
  352  4968  19449  255  0.00%  0.00%  0.00%  0  SpanTree  Flush      
  353  32  2  16000  0.00%  0.00%  0.00%  0  OBFL  ENV  obfl0  
  354  0  1  0  0.00%  0.00%  0.00%  0  Connection  Mgr  
  355  3  1  3000  0.00%  0.00%  0.00%  0  LICENSE  AGENT  
  356  19627  227174  86  0.00%  0.00%  0.00%  0  OBFL  VOLT  obfl0  
  358  44051  907629  48  0.00%  0.00%  0.00%  0  OBFL  I/O  Buffer  
  359  0  1  0  0.00%  0.00%  0.00%  0  image  mgr  
  360  6093  190743  31  0.00%  0.00%  0.00%  0  IP  Background  
  361  112  1281  87  0.00%  0.00%  0.00%  0  IP  Connected  Rou  
  362  640632  2612002  245  0.00%  0.00%  0.00%  0  IP  SNMP  
  363  97575  1322200  73  0.00%  0.00%  0.00%  0  PDU  DISPATCHER  
  364  514658  1325534  388  0.00%  0.00%  0.00%  0  SNMP  ENGINE  
  365  0  2  0  0.00%  0.00%  0.00%  0  IP  SNMPV6  
  366  0  1  0  0.00%  0.00%  0.00%  0  SNMP  ConfCopyPro  
  367  1136797  11427640  99  0.05%  0.00%  0.00%  0  NTP  
  368  10  5  2000  0.00%  0.00%  0.00%  0  hulc  cfg  mgr  mas  
  369  1222  51  23960  0.00%  0.00%  0.00%  0  hulc  running  con  
  370  0  1  0  0.00%  0.00%  0.00%  0  RTTYS  Process  
  372  13863  63384  218  0.00%  0.00%  0.00%  0  HCMP  sync  proces  
  373  0  2  0  0.00%  0.00%  0.00%  0  hulc_tb_process  
  374  4  3  1333  0.00%  0.00%  0.00%  0  XDR  RP  Ping  Back  
  375  926151  2118358  437  0.05%  0.00%  0.00%  0  XDR  mcast  rcv  
  376  7112  189929  37  0.00%  0.00%  0.00%  0  XDR  RP  backgroun  
  377  3  4  750  0.00%  0.00%  0.00%  0  IPC  LC  Message  H  
  378  0  1  0  0.00%  0.00%  0.00%  0  XDR  RP  Test  Back  
  379  0  2  0  0.00%  0.00%  0.00%  0  ADJ  resolve  proc  
  381  0  3  0  0.00%  0.00%  0.00%  0  CEF  RP  IPC  Backg

 

Any advice the community can provide will be greatly appreciated.

If there is any information I can also provide to help, please let me know.

1 Accepted Solution

Accepted Solutions

We found a solution, although it is more of a bandage than a long term fix.  

 

In configuration mode: sdm prefer lanbase-default


By changing the template from lanbase-routing to lanbase-default, the CPU maxing out has stopped.  It now hangs out around 40% Load versus 90-100% with clockwork spikes every 4 hours (and lasting about an hour) that spikes up to 70%.

This is a bandage solution for us however as what we also found is that this switch is being a sort of pseudo-distribution switch when it was only ever intended as an access switch.  We're looking into options to get a better setup in place, but the problem was resolved.  

View solution in original post

10 Replies 10

Mark Malone
VIP Alumni
VIP Alumni

sh proc cpu sorted | ex 0.00

this will give y a better indicator of higher use processes

This is a known bug
164 2845488462 335832663 8472 18.73% 18.08% 19.58% 0 Hulc LED Process

I have seen that Hulc LED is a "feature"that is a known issue.  
Any thoughts on what may make IP Input so high?

 

JB_MDF#sh proc cpu sorted | ex 0.0.0
CPU utilization for five seconds: 99%/20%; one minute: 98%; five minutes: 98%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
208 696041491 443942492 1567 37.61% 36.72% 35.89% 0 IP Input
164 2859993238 337518591 8473 20.60% 20.15% 20.63% 0 Hulc LED Process
221 67207083 156429836 429 0.95% 0.80% 0.78% 0 Spanning Tree
124 65971849 352637396 187 0.77% 0.69% 0.67% 0 HLFM address lea
134 106664462 13704689 7783 0.65% 0.70% 0.71% 0 hpm counter proc
130 48266661 293550724 164 0.53% 0.35% 0.31% 0 hpm main process
175 51209397 2727916 18772 0.41% 0.35% 0.35% 0 HQM Stack Proces
17 16726913 27633563 605 0.29% 0.21% 0.23% 0 ARP Input
93 39057226 598209192 65 0.23% 0.27% 0.24% 0 RedEarth Rx Mana
303 7338637 20356250 360 0.23% 0.15% 0.12% 0 CEF: IPv4 proces
165 26840617 10051762 2670 0.17% 0.19% 0.18% 0 HL3U bkgrd proce

I recall there's a couple of troubleshooting guides about IP Input on Cisco's main site.

From one of the docs

IP Input

The Cisco IOS® software process called IP input takes care of process-switching IP packets. If the IP input process uses unusually high CPU resources, the router is process-switching a lot of IP traffic. Check these issues:

  • Interrupt switching is disabled on an interface (or interfaces) that has (have) a lot of traffic

    Interrupt switching refers to the use of switching algorithms other than process switching. Examples include fast switching, optimum switching, Cisco Express Forwarding switching, and so on (refer to Performance Tuning Basics for details). Examine the output of the show interfaces switching command to see which interface is burdened with traffic. You can check the show ip interface command to see which switching method(s) are used on each interface. Re-enable interrupt switching on that interface. Remember that regular fast switching is configured on output interfaces: if fast switching is configured on an interface, packets that go out of that interface are fast-switched. Cisco Express Forwarding switching is configured on input interfaces. To create Forwarding Information Base (FIB) and adjacency table entries on a particular interface, configure Cisco Express Forwarding switching on all interfaces that route to that interface.

  • Fast switching on the same interface is disabled

    If an interface has a lot of secondary addresses or subinterfaces and there is a lot of traffic sourced from the interface and destined for an address on that same interface, then all of those packets are process-switched. In this situation, you should enable ip route-cache same-interface on the interface. When Cisco Express Forwarding switching is used, you do not need to enable Cisco Express Forwarding switching on the same interface separately.

  • Fast switching on an interface providing policy routing is disabled

    If a route-map has been configured on an interface, and a lot of traffic is handled by the route-map, then the router process-switches this traffic. In this situation, you should enable ip route-cache policy on the interface. Check the restrictions mentioned in the "Enabling Fast-Switched Policy-Based Routing" section of Configuring Policy-Based Routing.

  • Traffic that cannot be interrupt-switched arrives

    This can be any of the listed types of traffic. Click on linked items for more information.

    • Packets for which there is no entry yet in the switching cache

      Even if fast, optimum, or Cisco Express Forwarding switching (CEF) is configured, a packet for which there is no match in the fast-switching cache or FIB and adjacency tables is processed. An entry is then created in the appropriate cache or table, and all subsequent packets that match the same criteria are fast, optimum, or CEF-switched. In normal circumstances, these processed packets do not cause high CPU utilization. However, if there is a device in the network which 1) generates packets at an extremely high rate for devices reachable through the router, and 2) uses different source or destination IP addresses, there is not a match for these packets in the switching cache or table, so they are processed by the IP Input process (if NetFlow switching is configured, source and destination TCP ports are checked against entries in the NetFlow cache as well). This source device can be a non-functional device or, more likely, a device attempting an attack.

      (*) Only with glean adjacencies. Refer to Cisco Express Forwarding for more information about Cisco Express Forwarding adjacencies.

    • Packets destined for the router

      These are examples of packets destined for the router:

      • Routing updates that arrive at an extremely high rate. If the router receives an enormous amount of routing updates that have to be processed, this task might overload the CPU. Normally, this cannot happen in a stable network. The way you can gather more information depends on the routing protocol you have configured. However, you can start to check the output of the show ip route summary command periodically. Values that change rapidly are a sign of an unstable network. Frequent routing table changes mean increased routing protocol processing, which results in increased CPU utilization. For further information on how to troubleshoot this issue, refer to the Troubleshooting TCP/IP section of the Internetwork Troubleshooting Guide.

      • Any other kind of traffic destined for the router. Check who is logged on to the router and user actions. If someone is logged on and issues commands that produce long output, the high CPU utilization by the "IP input" process is followed by a much higher CPU utilization by the Virtual Exec process.

      • Spoof attack. To identify the problem, issue the show ip traffic command to check the amount of IP traffic. If there is a problem, the number of received packets with a local destination is significant. Next, examine the output of the show interfaces and show interfaces switching commands to check which interface the packets are coming in. Once you have identified the receiving interface, turn on ip accounting on the outgoing interface and see if there is a pattern. If there is an attack, the source address is almost always different, but the destination address is the same. An access list can be configured to solve the issue temporarily (preferably on the device closest to the source of the packets), but the real solution is to track down the source device and stop the attack.

    • Broadcast traffic

      Check the number of broadcast packets in the show interfaces command output. If you compare the amount of broadcasts to the total amount of packets that were received on the interface, you can gain an idea of whether there is an overhead of broadcasts. If there is a LAN with several switches connected to the router, then this can indicate a problem with Spanning Tree.

    • IP packets with options

    • Packets that require protocol translation

    • Multilink Point-to-Point Protocol (supported in Cisco Express Forwarding switching)

    • Compressed traffic

      If there is no Compression Service Adapter (CSA) in the router, compressed packets must be process-switched.

    • Encrypted traffic

      If there is no Encryption Service Adapter (ESA) in the router, encrypted packets must be process-switched.

    • Packets that go through serial interfaces with X.25 encapsulation

      In the X.25 protocol suite, flow control is implemented on the second Open System Interconnection (OSI) layer.

  • A lot of packets, that arrive at an extremely high rate, for a destination in a directly attached subnet, for which there is no entry in the Address Resolution Protocol (ARP) table. This should not happen with TCP traffic because of the windowing mechanism, but can happen with User Datagram Protocol (UDP) traffic. To identify the problem, repeat the actions suggested in order to track down a spoof attack.

  • A lot of multicast traffic goes through the router. Unfortunately, there is no easy way to examine the amount of multicast traffic. The show ip traffic command only shows summary information. However, if you have configured multicast routing on the router, you can enable fast-switching of multicast packets with the ip mroute-cache interface configuration command (fast-switching of multicast packets is off by default).

  • Router is oversubscribed. If the router is over-used and cannot handle this amount of traffic, try to distribute the load among other routers or purchase a high-end router.

  • IP Network Address Translation (NAT) is configured on the router, and lots of Domain Name System (DNS) packets go through the router. UDP or TCP packets with source or destination port 53 (DNS) are always punted to process level by NAT.

  • There are other packet types that are punted to processing.

  • There is fragmentation of IP Datagram. There is a small increase in CPU and memory overhead due to fragment of an IP datagram. Refer to Resolve IP Fragmentation, MTU, MSS, and PMTUD Issues with GRE and IPSEC for more information on how to troubleshoot this issue.

Whatever the reason for high CPU utilization in the IP Input process, the source of the problem can be tracked down if you debug the IP packets. Since the CPU utilization is already high, the debug process has to be performed with extreme caution. The debug process produces lots of messages, so only logging buffered should be configured.

Logging to a console raises unnecessary interrupts to the CPU and increases the CPU utilization. Logging to a host (or monitor logging) generates additional traffic on interfaces.

The debug process can be started with the debug ip packet detail exec command. This session should not last longer than three to five seconds. Debugging messages are written in the logging buffer. A capture of a sample IP debugging session is provided in the Sample IP Packet Debugging Session section of this document. Once the source device of unwanted IP packets is found, this device can be disconnected from the network, or an access list can be created on the router to drop packets from that destination.

Thank you.  

Admittedly, I am not savvy on switches, so the familiarity with the configurations and reports are new to me, but this gives me a good place to start.  

 

I hope to find a resolution soon.  This only started last week with no known configuration changes having taken place in that time span.  

theres a free tool on cisco website caused cli analyzer where it can point out issues with devices its a powerful tool checks hardware and softwrae and even configuration issues i would also take a full show tech from the switch , you will need to save it to text file through putty and then you can run it through the toolm and see if it points anything out

 

https://supportforums.cisco.com/t5/firewalling/cisco-cli-analyzer-2-0-released-in-addition-to-asa-we-now/td-p/2866138

after you have done that it may be no harm to give it reboot clear the switch down let it start fresh again , all processes memory will be reset but take the show tech while the issues is there first

We found a solution, although it is more of a bandage than a long term fix.  

 

In configuration mode: sdm prefer lanbase-default


By changing the template from lanbase-routing to lanbase-default, the CPU maxing out has stopped.  It now hangs out around 40% Load versus 90-100% with clockwork spikes every 4 hours (and lasting about an hour) that spikes up to 70%.

This is a bandage solution for us however as what we also found is that this switch is being a sort of pseudo-distribution switch when it was only ever intended as an access switch.  We're looking into options to get a better setup in place, but the problem was resolved.  

That would imply one of your TCAM resources was being exhausted using the other SDM template. Likely accounts for you high CPU in IP Input. (On these switches, you want forwarding done on the ASIC not on the main CPU.)

I tried this before coming to the forums to seek aid. The program may be free, but it requires an account with cisco as well as a an entitlement and/or contract with them to fully perform the tools and, unfortunately, that part has a large price tag. As a school district, excess funds are not always readily available. And as a standard tech for the district, I don't have the authority to make that sort of purchase.

Currently, I'm still going through things from the list, but I'm thinking a reboot will provide a better baseline to see this information from a different angle.

Thank you again for your input on this.
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