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SNMP Timeout and Retries

  • 1.  SNMP Timeout and Retries

    Posted 03-13-2012 05:29 PM

    Hi all,


    May I have a question regarding SNMP timeout and retries setting in interface_traffic, cisco_monitor, etc.? Do we know if SNMP timeout value is doubled for every retry?


    For example:


    Timeout: 1 seconds

    Retries: 5


    1st retry - 1 seconds, 2nd retry - 2 seconds, 3rd retry - 4 seconds, 4th retry - 8 seconds, 5th retry - 16 seconds


    Thanks a lot,

  • 2.  Re: SNMP Timeout and Retries

    Posted 03-13-2012 05:44 PM

    I am not completely certain, but I do not think that is how it works. I think the timeout is the same with each request. If I recall correctly, it is not called the "initial timeout" or anything like that, so I would expect the value to be used as the timeout each time.


    It should be fairly easy to test this and confirm the behavior (if it is important to know exactly what is happening). Just point the probe to an IP address that is not in use and use a packet analyzer like Wireshark to see when the retries happen.