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snmp crash on ROS 5.17-5.18

Posted: Tue Jun 26, 2012 10:57 pm
by eugenejazz
hi,

I have a few RB751U-2HnD with similar config. On two of them snmp causes 90% cpu load after some uptime.
tested on 5.17-5.18.
> system resource pr
                   uptime: 4h51m18s
                  version: 5.18
              free-memory: 13984KiB
             total-memory: 29696KiB
                      cpu: MIPS 24Kc V7.4
                cpu-count: 1
            cpu-frequency: 400MHz
                 cpu-load: 100%
           free-hdd-space: 29528KiB
          total-hdd-space: 61440KiB
  write-sect-since-reboot: 3766
         write-sect-total: 244494
               bad-blocks: 0%
        architecture-name: mipsbe
               board-name: RB751U-2HnD
                 platform: MikroTik
> tool profile 
NAME                    CPU        USAGE
wireless                all           0%
snmp                    all        91.5%
ethernet                all           1%
console                 all           0%
firewall                all           0%
management              all         2.5%
profiling               all           5%
queuing                 all           0%
bridging                all           0%
unclassified            all           0%
> snmp print 
action timed out - try again, if error continues contact MikroTik support and send a supout file (13)
 > snmp set enabled=no
action timed out - try again, if error continues contact MikroTik support and send a supout file (13)
> snmp export 
/snmp community
set [ find default=yes ] addresses=0.0.0.0/0 authentication-password="" authentication-protocol=MD5 encryption-password="" encryption-protocol=DES name=public read-access=no security=none \   
    write-access=no                                                                                                                                                                             
add addresses=0.0.0.0/0 authentication-password="" authentication-protocol=MD5 encryption-password="" encryption-protocol=DES name=123456 read-access=yes security=none \            
    write-access=no                                                                                                                                                                             
/snmp                                                                                                                                                                                           
set contact=noc@.ru enabled=yes engine-id=123 location="Spb" trap-community=123456 trap-generators="" trap-target="" trap-version=2

Re: snmp crash on ROS 5.17-5.18

Posted: Tue Jun 26, 2012 11:28 pm
by ohara
Hi, reset configuration on your RB and change Dude > Settings > Misc > MAC Mapping Refresh Interval (set it to much higher value if you use Dude). I've gone through the same with RB751G and it solved the issue.

Re: snmp crash on ROS 5.17-5.18

Posted: Tue Jun 26, 2012 11:54 pm
by eugenejazz
Hi, reset configuration on your RB and change Dude > Settings > Misc > MAC Mapping Refresh Interval (set it to much higher value if you use Dude). I've gone through the same with RB751G and it solved the issue.
I do not use Dude

Re: snmp crash on ROS 5.17-5.18

Posted: Wed Jun 27, 2012 4:14 pm
by janisk
it would be helpful if you could create supout.rif file and send it to support@mikrotik.com at this state using RouterOS 5.18

Re: snmp crash on ROS 5.17-5.18

Posted: Wed Jun 27, 2012 8:36 pm
by eugenejazz
it would be helpful if you could create supout.rif file and send it to support@mikrotik.com at this state using RouterOS 5.18
Ticket#2012062766000927

Re: snmp crash on ROS 5.17-5.18

Posted: Wed Aug 21, 2013 3:33 pm
by temesi
This issue is resolved?
In Rb532A ( ROS v5.25 ) appears this problem.