Hi,
I have two cisco device 4500X in VSS and I monitor these device with a network monitor tool.
I have many SNMP sensor for the network interfaces and System Health and I ask the device every 180 seconds on port 161.
Only for sensor "PING" I ask the device every 30 seconds.
In the past mounth I found any SNMP OID that give me any results that I can't convert in cmd line command, to show if the values are correct or not.
I found this three OID to know the result of the memory of a cisco device.
- Cisco IOS --> Available Free Processor Memory [bytes]
SNMP Object Type --> ciscoMemoryPoolFree
OID 1.3.6.1.4.1.9.9.48.1.1.1.6.1
Returns the number of bytes from the memory pool that are currently unused on the managed device for the processor.
At the moment very low and the value is going down rapidly
I can't found the cmd line command
- Free memory device [kbyte]
SNMP Object Type --> cpmCPUMemoryFree
OID 1.3.6.1.4.1.9.9.109.1.1.1.1.13.1000
Returns the overall CPU wide system memory which is currently free.
- Available Free Contiguous Processor Memory [bytes]
SNMP Object Type --> CiscoMemoryPoolLargestFree
OID 1.3.6.1.4.1.9.9.48.1.1.1.7.1
Indicates the largest number of contiguous bytes from the memory pool that are currently unused on the managed device.
At the moment very low and the value is going down rapidly.
I can't found the cmd line command
As I write above, the "ciscoMemoryPoolFree" and the "CiscoMemoryPoolLargestFree" are going down rapidly..
I don't understand why the consumption of the IOS memory is so rapidly. Maybe this SNMP OID must not stress so frequently the device? Maybe only 1 time/day? But then how can I know that the memory of the system is too low if it is not a command, and not an advertisement? I know it only when I can't reach the device on ssh or telnet.. but in this moment it's too late.
Can anybody help me?
Thanks in advance
Stefano
