Network Working Group K. McCloghrie, Editor Request for Comments: 2013 Cisco Systems Updates: 1213 November 1996 Category: Standards Track
SNMPv2 Management Information Base
for the User Datagram Protocol using SMIv2
Status of this Memo
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
IESG Note:
The IP, UDP, and TCP MIB modules currently support only IPv4. These three modules use the IpAddress type defined as an OCTET STRING of length 4 to represent the IPv4 32-bit internet addresses. (See RFC 1902, SMI for SNMPv2.) They do not support the new 128-bit IPv6 internet addresses.
Table of Contents
1. Introduction ................................................. 1 2. Definitions .................................................. 2 2.1 The UDP Group ............................................... 3 2.2 Conformance Information ..................................... 5 2.2.1 Compliance Statements ..................................... 5 2.2.2 Units of Conformance ...................................... 5 3. Acknowledgements ............................................. 6 4. References ................................................... 6 5. Security Considerations ...................................... 6 6. Editor's Address ............................................. 6
1. Introduction
A management system contains: several (potentially many) nodes, each with a processing entity, termed an agent, which has access to management instrumentation; at least one management station; and, a management protocol, used to convey management information between the agents and management stations. Operations of the protocol are carried out under an administrative framework which defines authentication, authorization, access control, and privacy policies.
McCloghrie Standards Track [Page 1] RFC 2013 SNMPv2 MIB for UDP November 1996
Management stations execute management applications which monitor and control managed elements. Managed elements are devices such as hosts, routers, terminal servers, etc., which are monitored and controlled via access to their management information.
Management information is viewed as a collection of managed objects, residing in a virtual information store, termed the Management Information Base (MIB). Collections of related objects are defined in MIB modules. These modules are written using a subset of OSI's Abstract Syntax Notation One (ASN.1) [1], termed the Structure of Management Information (SMI) [2].
This document is the MIB module which defines managed objects for managing implementations of the User Datagram Protocol (UDP) [3].
The managed objects in this MIB module were originally defined using the SNMPv1 framework as a part of MIB-II [4]. This document defines the same objects for UDP using the SNMPv2 framework.
2. Definitions
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"
McCloghrie Standards Track [Page 2] RFC 2013 SNMPv2 MIB for UDP November 1996
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 }
McCloghrie Standards Track [Page 3] RFC 2013 SNMPv2 MIB for UDP November 1996
– 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 }
McCloghrie Standards Track [Page 4] RFC 2013 SNMPv2 MIB for UDP November 1996
– 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
McCloghrie Standards Track [Page 5] RFC 2013 SNMPv2 MIB for UDP November 1996
3. Acknowledgements
This document contains a modified subset of RFC 1213.
4. References
[1] Information processing systems - Open Systems Interconnection Specification of Abstract Syntax Notation One (ASN.1), International Organization for Standardization. International Standard 8824, (December, 1987).
[2] McCloghrie, K., Editor, "Structure of Management Information
for version 2 of the Simple Network Management Protocol
(SNMPv2)", RFC 1902, Cisco Systems, January 1996.
[3] Postel, J., "User Datagram Protocol", STD 6, RFC 768, USC-ISI,
August 1980.
[4] McCloghrie, K., and Rose, M., "Management Information Base for
Network Management of TCP/IP-based internets: MIB-II", STD 17,
RFC 1213, March 1991.
5. Security Considerations
Security issues are not discussed in this memo.
6. Editor's Address
Keith McCloghrie
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
US
Phone: +1 408 526 5260 EMail: kzm@cisco.com
McCloghrie Standards Track [Page 6]