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snmpm_mpd(3erl) [linux man page]

snmpm_mpd(3erl) 					     Erlang Module Definition						   snmpm_mpd(3erl)

NAME

       snmpm_mpd - Message Processing and Dispatch module for the SNMP manager

DESCRIPTION

       The  module  snmpm_mpd implements the version independent Message Processing and Dispatch functionality in SNMP for the manager. It is sup-
       posed to be used from a Network Interface process ( Definition of Manager Net if ).

EXPORTS

       init_mpd(Vsns) -> mpd_state()

	      Types  Vsns = [Vsn]
		     Vsn = v1 | v2 | v3

	      This function can be called from the net_if process at start-up. The options list defines which versions to use.

	      It also initializes some SNMP counters.

       process_msg(Msg, TDomain, Addr, Port, State, NoteStore, Logger) -> {ok, Vsn, Pdu, PduMS, MsgData} | {discarded, Reason}

	      Types  Msg = binary()
		     TDomain = snmpUDPDomain
		     Addr = {integer(), integer(), integer(), integer()}
		     Port = integer()
		     State = mpd_state()
		     NoteStore = pid()
		     Logger = function()
		     Vsn = 'version-1' | 'version-2' | 'version-3'
		     Pdu = #pdu
		     PduMs = integer()
		     MsgData = term()

	      Processes an incoming message. Performs authentication and decryption as necessary. The return values should be passed  the  manager
	      server.

	      NoteStore is the pid() of the note-store process.

	      Logger is the function used for audit trail logging.

	      In the case when the pdu type is report , MsgData is either ok or {error, ReqId, Reason} .

       generate_msg(Vsn, NoteStore, Pdu, MsgData, Logger) -> {ok, Packet} | {discarded, Reason}

	      Types  Vsn = 'version-1' | 'version-2' | 'version-3'
		     NoteStore = pid()
		     Pdu = #pdu
		     MsgData = term()
		     Logger = function()
		     Packet = binary()
		     Reason = term()

	      Generates a possibly encrypted packet to be sent to the network.

	      NoteStore is the pid() of the note-store process.

	      MsgData  is the message specific data used in the SNMP message. In SNMPv1 and SNMPv2c, this message data is the community string. In
	      SNMPv3, it is the context information.

	      Logger is the function used for audit trail logging.

       generate_response_msg(Vsn, Pdu, MsgData, Logger) -> {ok, Packet} | {discarded, Reason}

	      Types  Vsn = 'version-1' | 'version-2' | 'version-3'
		     Pdu = #pdu
		     MsgData = term()
		     Logger = function()
		     Packet = binary()
		     Reason = term()

	      Generates a possibly encrypted response packet to be sent to the network.

	      MsgData is the message specific data used in the SNMP message. This value is received from the process_msg function.

Ericsson AB							     snmp 4.19							   snmpm_mpd(3erl)

Check Out this Related Man Page

snmpa_network_interface(3erl)				     Erlang Module Definition				     snmpa_network_interface(3erl)

NAME

       snmpa_network_interface - Behaviour module for the SNMP agent network interface.

DESCRIPTION

       This  module  defines  the  behaviour  of the agent network interface. A snmpa_network_interface compliant module must export the following
       functions:

	 * start_link/4

	 * info/1

	 * get_log_type/1

	 * set_log_type/2

	 * verbosity/2

       The semantics of them and their exact signatures are explained below.

       But this is not enough. There is also a set of mandatory messages which the network interface entity must be able to receive and be able to
       send. This is described in chapter snmp_agent_netif .

EXPORTS

       start_link(Prio, NoteStore, MasterAgent, Opts) -> {ok, Pid} | {error, Reason}

	      Types  Prio = priority()
		     NoteStore = pid()
		     MasterAgent = pid()
		     Opts = [opt()]
		     opt() = {verbosity, verbosity()} | {versions, versions()} | term()
		     versions() = [version()]
		     version() = v1 | v2 | v3

	      Start-link the network interface process.

	      NoteStore is the pid of the note-store process and MasterAgent is the pid of the master-agent process.

	      Opts  is	an  (basically)  implementation  dependent list of options to the network interface process. There are however a number of
	      options which must be handled: versions and verbosity .

       info(Pid) -> [{Key, Value}]

	      Types  Pid = pid()

	      The info returned is basically up to the implementer to decide. This implementation provided by the application provides info  about
	      memory allocation and various socket information.

	      The  info  returned  by  this  function is returned together with other info collected by the agent when the info function is called
	      (tagged with with the key net_if ).

       verbosity(Pid, Verbosity) -> void()

	      Types  Pid = pid()
		     Verbosity = verbosity()

	      Change the verbosity of a running network interface process.

       get_log_type(Pid) -> {ok, LogType} | {error, Reason}

	      Types  Pid = pid()
		     LogType = atl_type()
		     Reason = term()

	      The Audit Trail Log is managed by the network interface process. So, it is this process that has to retrieve the actual log-type.

       set_log_type(Pid, NewType) -> {ok, OldType} | {error, Reason}

	      Types  Pid = pid()
		     NewType = OldType = atl_type()
		     Reason = term()

	      The Audit Trail Log is managed by the network interface process. So, it is this process that has to do the actual  changing  of  the
	      type.

	      See set_log_type for more info.

Ericsson AB							     snmp 4.19					     snmpa_network_interface(3erl)
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