Several routers running 5.21-5.24 (RB450G) here. After adding the device to The Dude via SNMP, the CPU usage on all of these routers goes to 99-100%. The profiler tool on the routers says the usage is attributed to the “Management” process which I am assuming is SNMP.
Has anyone noticed this? Any fix?
Thanks.
On devices with large routing tables you need to tell the device to not respond to SNMP queries for routing tables.
I am on Cisco so I can’t give you the command and I don’t know if one exists. The commands for Cisco are like…
snmp-server view cutdown iso included
snmp-server view cutdown at excluded
snmp-server view cutdown internet.6.3.15 excluded
snmp-server view cutdown internet.6.3.16 excluded
snmp-server view cutdown internet.6.3.18 excluded
snmp-server view cutdown ip.21 excluded
snmp-server view cutdown ip.22 excluded
I have put these on my BGP internet connected routers to lower SNMP walk CPU.
HTH,
Lebowski
That does make sense, but these routers do not have large routing tables.