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MonitorTools.com » Technical documentation » SNMP » MIB » RFC » UDP-MIB

UDP-MIB device MIB details by RFC

UDP-MIB file content

The SNMP protocol is used to for conveying information and commands between agents and managing entities. SNMP uses the User Datagram Protocol (UDP) as the transport protocol for passing data between managers and agents. The reasons for using UDP for SNMP are, firstly it has low overheads in comparison to TCP, which uses a 3-way hand shake for connection. Secondly, in congested networks, SNMP over TCP is a bad idea because TCP in order to maintain reliability will flood the network with retransmissions.

Management information (MIB) is represented as a collection of managed objects. These objects together form a virtual information base called MIB. An agent may implement many MIBs, but all agents must implement a particular MIB called MIB-II [16]. This standard defines variables for things such as interface statistics (interface speeds, MTU, octets sent, octets received, etc.) as well as various other things pertaining to the system itself (system location, system contact, etc.). The main goal of MIB-II is to provide general TCP/IP management information.

Use ActiveXperts Network Monitor 2024 to import vendor-specific MIB files, inclusing UDP-MIB.


Vendor: RFC
Mib: UDP-MIB  [download]  [view objects]
Tool: ActiveXperts Network Monitor 2024 [download]    (ships with advanced SNMP/MIB tools)
-- WinAgents MIB Extraction Wizard
-- Extracted from rfc2013.txt 16.03.2005 20:21:44

UDP-MIB DEFINITIONS ::= BEGIN

IMPORTS
    MODULE-IDENTITY, OBJECT-TYPE, Counter32,
    IpAddress, mib-2                   FROM SNMPv2-SMI
    MODULE-COMPLIANCE, OBJECT-GROUP    FROM SNMPv2-CONF;


udpMIB MODULE-IDENTITY
    LAST-UPDATED "9411010000Z"
    ORGANIZATION "IETF SNMPv2 Working Group"
    CONTACT-INFO
            "        Keith McCloghrie

             Postal: Cisco Systems, Inc.
                     170 West Tasman Drive
                     San Jose, CA  95134-1706
                     US

             Phone:  +1 408 526 5260
             Email:  kzm@cisco.com"







    DESCRIPTION
            "The MIB module for managing UDP implementations."
    REVISION      "9103310000Z"
    DESCRIPTION
            "The initial revision of this MIB module was part of MIB-
            II."
    ::= { mib-2 50 }

-- the UDP group

udp      OBJECT IDENTIFIER ::= { mib-2 7 }

udpInDatagrams OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The total number of UDP datagrams delivered to UDP users."
    ::= { udp 1 }

udpNoPorts OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The total number of received UDP datagrams for which there
            was no application at the destination port."
    ::= { udp 2 }

udpInErrors OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of received UDP datagrams that could not be
            delivered for reasons other than the lack of an application
            at the destination port."
    ::= { udp 3 }

udpOutDatagrams OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The total number of UDP datagrams sent from this entity."
    ::= { udp 4 }



-- the UDP Listener table

-- The UDP listener table contains information about this
-- entity's UDP end-points on which a local application is
-- currently accepting datagrams.

udpTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF UdpEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "A table containing UDP listener information."
    ::= { udp 5 }

udpEntry OBJECT-TYPE
    SYNTAX      UdpEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "Information about a particular current UDP listener."
    INDEX   { udpLocalAddress, udpLocalPort }
    ::= { udpTable 1 }

UdpEntry ::= SEQUENCE {
        udpLocalAddress  IpAddress,
        udpLocalPort     INTEGER
    }

udpLocalAddress OBJECT-TYPE
    SYNTAX      IpAddress
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The local IP address for this UDP listener.  In the case of
            a UDP listener which is willing to accept datagrams for any
            IP interface associated with the node, the value 0.0.0.0 is
            used."
    ::= { udpEntry 1 }

udpLocalPort OBJECT-TYPE
    SYNTAX      INTEGER (0..65535)
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The local port number for this UDP listener."
    ::= { udpEntry 2 }



-- conformance information

udpMIBConformance OBJECT IDENTIFIER ::= { udpMIB 2 }

udpMIBCompliances OBJECT IDENTIFIER ::= { udpMIBConformance 1 }
udpMIBGroups      OBJECT IDENTIFIER ::= { udpMIBConformance 2 }

-- compliance statements

udpMIBCompliance MODULE-COMPLIANCE
    STATUS  current
    DESCRIPTION
            "The compliance statement for SNMPv2 entities which
            implement UDP."
    MODULE  -- this module
        MANDATORY-GROUPS { udpGroup
                           }
    ::= { udpMIBCompliances 1 }

-- units of conformance

udpGroup OBJECT-GROUP
    OBJECTS   { udpInDatagrams, udpNoPorts,
                udpInErrors, udpOutDatagrams,
                udpLocalAddress, udpLocalPort }
    STATUS    current
    DESCRIPTION
            "The udp group of objects providing for management of UDP
            entities."
    ::= { udpMIBGroups 1 }

END