Ethernet Switches & Routers

Reply
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?

 

Version:
Kernel:     2.6.14.2  
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 ]

Greetings,

 

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.

Join the Community

Get quick and easy access to valuable resource designed to help you manage your Brocade Network.

vADC is now Pulse Secure
Download FREE NVMe eBook