Hello Vidya, I don't know why I discover this message only today. Maybe you get an answer already, otherwise this is mine...
Le 17/12/2013 08:46, Vidya Sagar Saripalli a écrit : > > In my project we are using Net-SNMP agent. I need some clarifications > regarding table with MAC address as Index. > > While setting/getting a value from table with MAC address as one of > its index, Does I need to specify the length of MAC address(6) also > in OID? > > While getting Net-SNMP will put length (6) in the PDU? > > In MIB the definition of MAC address is like this > > MacAddress ::= TEXTUAL-CONVENTION > [...] > SYNTAX OCTET STRING (SIZE (6)) The answer is here : <cit. http://tools.ietf.org/search/rfc2578#section-7.7> (2) string-valued, fixed-length strings (or variable-length preceded by the IMPLIED keyword): `n' sub-identifiers, where `n' is the length of the string (each octet of the string is encoded in a separate sub-identifier); (3) string-valued, variable-length strings (not preceded by the IMPLIED keyword): `n+1' sub-identifiers, where `n' is the length of the string (the first sub-identifier is `n' itself, following this, each octet of the string is encoded in a separate sub-identifier); </cit.> Because it is a fixed-length string, 'SIZE(6)' and not 'SIZE(0..6)', we are in the case number (2) and not in the case number (3) : you don't have to (and you mustn't) specify the length in the sub-identifiers. Regards, -- Olivier Miakinen ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ Net-snmp-users mailing list Net-snmp-users@lists.sourceforge.net Please see the following page to unsubscribe or change other options: https://lists.sourceforge.net/lists/listinfo/net-snmp-users
