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Ethernet Switches & Routers

New Member
Posts: 1
Registered: ‎04-25-2014

High CPU load caused by snmp process

I have a high cpu usage when SNMP is running. If I kill the SNMP process all is working properlly.

Does anybody give me any clue about what will be wrong with this BROCADE 300?


Fabric OS:  v6.4.1a


top - 16:27:03 up 980 days,  6:11,  1 user,  load average: 0.29, 0.15, 0.13

Tasks:  80 total,   1 running,  79 sleeping,   0 stopped,   0 zombie

Cpu(s): 64.0%us, 25.4%sy,  0.0%ni,  9.9%id,  0.0%wa,  0.0%hi,  0.7%si,  0.0%st

Mem:    504344k total,   299708k used,   204636k free,    21184k buffers

Swap:        0k total,        0k used,        0k free,   124004k cached

New Contributor
Posts: 4
Registered: ‎06-05-2013

Re: High CPU load caused by snmp process

[ Edited ]



i am also having this problem on three VDX 6720 switches running 4.1.2a. i currently have a support case open to see if there is a bug or what is causing this process to hang like that...



Switch# show process cpu
Realtime Statistics:
Load Average: One minute: 2.33; Five minutes: 2.34; Fifteen minutes: 2.36
Total CPU Utilization:
Current:   100.00% (user procs:25.00%, system-kernel:75.00%, iowait:0.00%)

Active Processes Lifetime Statistic:
Legend(State): D - uninterruptible sleep R - running S - interruptible sleep
               T - stopped W - paging X - dead Z - defunct zombie

  PID   Process           CPU%   State      Started
 3473   snmpd             72.80    S       03:30:58 Jul 13, 2014
 5600   sshd              1.30    S       11:25:11 Sep 16, 2014
 4752   EAN_RX_43008080   1.20    S       03:32:25 Jul 13, 2014
 3551   HSLK_TH_PKT       0.60    S       03:31:08 Jul 13, 2014
 4750   EAN_TM_43008080   0.50    S       03:32:25 Jul 13, 2014

New Contributor
Posts: 4
Registered: ‎06-05-2013

Re: High CPU load caused by snmp process

i just wanted to post this so others know both what causes the issue and how to kill the proccess. There is a known bug in the current version 4.1.2a that if UDP ports 8000 and 50000 are scanned with a tool such as nmap it can lock up the snmp process. this goes for any ip address / layer 3 address on the device. to kill the process simply log in as root using ssh, telnet, or console cable and run "kill -9 <pid>" to kill the process and free up the CPU. hope this helps others out there.

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