c# - Dealing with an incrementing SNMP OID? -

i'm trying use snmp data printer. if turn printer off , on, oid need get .1.3.6.1.2.1.43.18.1.1.8.1.1. each time printer has "event", such getting paused, running out of paper or having paper jam, oidfor data want increments.

for example, turn printer on , query .1.3.6.1.2.1.43.18.1.1.8.1.1. , "paused" value. unpause printer , remove of paper printer, , "add paper" message have query .1.3.6.1.2.1.43.18.1.1.8.1.2.

i don't know if normal snmp behavior wonder people suggest in these cases able programatically printer state?

yes it's normal retreiving rows alert table :

just have mib :

the corresponding text part of mib (from rfc 1759):

prtalerttable object-type     syntax     sequence of prtalertentry     max-access not-accessible     status     current     description         ""     ::= { prtalert 1 }  prtalertentry object-type     syntax     prtalertentry     max-access not-accessible     status     current     description         "entries may exist in table each device         index who's device type `printer'."     index  { hrdeviceindex, prtalertindex }     ::= { prtalerttable 1 }  prtalertentry ::= sequence {     prtalertindex               integer32,     prtalertseveritylevel       integer,     prtalerttraininglevel       integer,     prtalertgroup               integer,     prtalertgroupindex          integer32,     prtalertlocation            integer32,     prtalertcode                integer,     prtalertdescription         octet string,     prtalerttime                timeticks } 

so way snmp works is suffix oid entry of mib index of row. can whole table get-bulk, think first thing understand how retreive snmp table.

in exact case : 1.3.6.1.2.1.43.18.1.1.8.1.1 have read :

1.3.6.1.2.1.43.18.1.1.8 : prtalertdescription followed by

1 : hrdeviceindex followed

1 : prtalertindex row.

an advice can find assembly called snmpsharpnet helpful play snmp on top of .net.