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Maximum SNMP VarBind/PDU length

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  • Maximum SNMP VarBind/PDU length

    Hi,

    I'm developing an SNMP agent for our product, which implements the Windows SNMP Extension Agent API.

    Some of our product's traps may contain a trap VarBind of type OCTET STRING.
    From what I read in the web, I understood that this variable can be 65536 octets long.

    Therefore, it is clear that a trap with a "large" string variable should be fragmented to several SNMP (UDP) messages.

    My question:

    Does Windows SNMP service can handle such a trap and does fragment it correctly, or it limits the maximum variable/PDU length?

    Thanks!

  • #2
    Re: Maximum SNMP VarBind/PDU length

    to my knowledge and experience, windows SNMP does not have any limitations of that kind. but windows does not parse SNMP messeges at all, it can only display then and transport them to an application that will handle the parsing so you will have to plan you application to parse the messages properly.

    Yaniv.
    Yaniv Feldman
    Microsoft Security Regional Director
    Microsoft Management Expert
    MCSA, MCSE, MCT

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