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SNMP ( Simple Network Management Protocol )

Home > Protocols > SNMP Update: 2005-11-10 16:02:29    I have words to say about this protocol
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SUMMARY
Protocol : Simple Network Management Protocol
Protocol suite : TCP/IP
Layer : Application Layer
Type : Network management protocol
EtherType : 0x814C
Latest Version : SNMPv1, SNMPv2, SNMPv3
SNMP MIBs : iso.org.dod.internet.mgmt.mib-2.snmp (1.3.6.1.2.1.11)
iso.org.dod.internet.mgmt.mib-2.snmpParties (1.3.6.1.2.1.20)
iso.org.dod.internet.mgmt.mib-2.snmpSecrets (1.3.6.1.2.1.21)
iso.org.dod.internet.snmpv2 (1.3.6.1.6)
iso.org.dod.internet.snmpv2.snmpModules (1.3.6.1.6.3)
Ports : 161 (TCP, UDP) server
162 (TCP, UDP) traps
Related protocols : SNMPv1,
SNMPv2,
SNMPv3,
SMI
Working groups : ADSLMIB, ADSL MIB.
APPLMIB, Application MIB.
ATOMMIB, AToM MIB.
DISMAN, Distributed Management.
ENTMIB, Entity MIB.
EOS, Evolution of SNMP.
Hubmib, Ethernet Interfaces and Hub MIB.
IFMIB, Interfaces MIB.
ISMS, Integrated Security Model for SNMP.
PRINTMIB, Printer MIB.
PTOPOMIB, Physical Topology MIB.
SMING, Next Generation Structure of Management Information.
SNMPCONG, Configuration Management with SNMP.
SNMPV3, SNMP Version 3.
TRUNKMIB, DS1/DS3 MIB.
DESCRIPTION
The Simple Network Management Protocol (SNMP) is an application layer protocol that facilitates the exchange of management information between network devices. SNMP enables network administrators to manage network performance, find and solve network problems, and plan for network growth.

SNMP is essentially a request-reply protocol running over UDP, though TCP operation is possible. SNMP is an asymmetric protocol, operating between a management station (smart) and an agent (dumb).

SNMP Basic Components
An SNMP-managed network consists of three key components: managed devices, agents, and network-management systems (NMSs).

A managed device is a network node that contains an SNMP agent and that resides on a managed network. Managed devices collect and store management information and make this information available to NMSs using SNMP. Managed devices, sometimes called network elements, can be routers and access servers, switches and bridges, hubs, computer hosts, or printers.

An agent is a network-management software module that resides in a managed device. An agent has local knowledge of management information and translates that information into a form compatible with SNMP.

An NMS executes applications that monitor and control managed devices. NMSs provide the bulk of the processing and memory resources required for network management. One or more NMSs must exist on any managed network.

Two versions of SNMP exist: SNMP version 1 (SNMPv1) and SNMP version 2 (SNMPv2). Both versions have a number of features in common, but SNMPv2 offers enhancements, such as additional protocol operations. Standardization of yet another version of SNMP¡ªSNMP Version 3 (SNMPv3)¡ªis pending. This chapter provides descriptions of the SNMPv1 and SNMPv2 protocol operations. Figure 56-1 illustrates a basic network managed by SNMP.

SNMP Management
SNMP is a distributed-management protocol. A system can operate exclusively as either an NMS or an agent, or it can perform the functions of both. When a system operates as both an NMS and an agent, another NMS might require that the system query manage devices and provide a summary of the information learned, or that it report locally stored management information.

SNMP Message Format
SNMP is a session protocol which is encapsulated in UDP. The SNMP message format is shown below:

Version

Community

PDU


  • Version

    • SNMP version number. Both the manager and agent must use the same version of SNMP. Messages containing different version numbers are discarded without further processing.

  • Community

    • Community name used for authenticating the manager before allowing access to the agent.

  • PDU

    • PDU Format

      • GetRequest, GetNext Request, GetResponse and SetRequest PDUs format.

      PDU type

      Request ID

      Error status

      Error index

      Object 1, value 1

      Object 2, value 2


      • PDU type

        • Specifies the type of PDU:

        0

        GetRequest.

        1

        GetNextRequest.

        2

        GetResponse.

        3

        SetRequest.


        • GetRequest

          • The GetRequest-PDU is generated by a protocol entity only at the request of its SNMP application entity.

        • GetNextRequest

          • The form of the GetNextRequest-PDU is identical to that of the GetRequest-PDU except for the indication of the PDU type. The GetNextRequest-PDU is generated by a protocol entity only at the request of its SNMP application entity.

        • GetResponse

          • The form of the GetResponse-PDU is identical to that of the GetRequest-PDU except for the indication of the PDU type. The GetResponse-PDU is generated by a protocol entity only upon receipt of the GetRequest-PDU, GetNextRequest-PDU, or SetRequest-PDU, as described elsewhere in this document.

          Upon receipt of the GetResponse-PDU, the receiving protocol entity presents its contents to its SNMP application entity.

        • SetRequest

          • The form of the SetRequest-PDU is identical to that of the GetRequest-PDU except for the indication of the PDU type. The SetRequest-PDU is generated by a protocol entity only at the request of its SNMP application entity.

        • Trap

          • The Trap-PDU is generated by a protocol entity only at the request of the SNMP application entity. The means by which an SNMP application entity selects the destination addresses of the SNMP application entities is implementation-specific.

      • Request ID

        • Integer field which correlates the manager¡¯s request to the agent¡¯s response.

      • Error status

        • Enumerated integer type that indicates normal operation or one of five error conditions. The possible values are:

        0

        noError: Proper manager/agent operation.

        1

        tooBig: Size of the required GetResponse PDU exceeds a local limitation.

        2

        noSuchName: The requested object name does not match the names available in the relevant MIB View.

        3

        badValue: A SetRequest contains an inconsistent type, length and value for the variable.

        4

        readOnly.

        5

        genErr: Other errors, which are not explicitly defined, have occurred.


      • Error index

        • Identifies the entry within the variable bindings list that caused the error.

      • Object/value

        • Variable binding pair of a variable name with its value.

    • Trap PDU Format

      • PDU type

      Enterprise

      Agent address

      Gen trap type

      Spec trap type

      Time stamp

      Object/value


      • PDU type

        • Specifies the type of PDU (4=Trap).

      • Enterprise

        • Identifies the management enterprise under whose registration authority the trap was defined.

      • Agent address

        • IP address of the agent, used for further identification.

      • Generic trap type

        • Field describing the event being reported. The following seven values are defined:
        0coldStart: Sending protocol entity has reinitialized, indicating that the agent"s configuration or entity implementation may be altered.
        1warmStart: Sending protocol has reinitialized, but neither the agent"s configuration nor the protocol entity implementation has been altered.
        2linkDown: A communication link has failed.
        3linkUp: A communication link has come up.
        4authenticationFailure: The agent has received an improperly authenticated SNMP message from the manager, i.e., community name was incorrect.
        5egpNeighborLoss: An EGP peer neighbor is down.
        6enterpriseSpecific: A non-generic trap has occurred which is further identified by the Specific Trap Type and Enterprise fields.

      • Specific trap type

        • Used to identify a non-generic trap when the Generic Trap Type is enterpriseSpecific.

      • Timestamp

        • Value of the sysUpTime object, representing the amount of time elapsed between the last (re-)initialization and the generation of that Trap.

      • Object/value

        • Variable binding pair of a variable name with its value.


SNMP Architecture
Implicit in the SNMP architectural model is a collection of network management stations and network elements. Network management stations execute management applications which monitor and control network elements. Network elements are devices such as hosts, gateways, terminal servers, and the like, which have management agents responsible for performing the network management functions requested by the network management stations. The Simple Network Management Protocol (SNMP) is used to communicate management information between the network management stations and the agents in the network elements.

  • Goals of the Architecture

    • The SNMP explicitly minimizes the number and complexity of management functions realized by the management agent itself. This goal is attractive in at least four respects:
    • The development cost for management agent software necessary to support the protocol is accordingly reduced.


    • The degree of management function that is remotely supported is accordingly increased, thereby admitting fullest use of internet resources in the management task.


    • The degree of management function that is remotely supported is accordingly increased, thereby imposing the fewest possible restrictions on the form and sophistication of management tools.


    • Simplified sets of management functions are easily understood and used by developers of network management tools.

    A second goal of the protocol is that the functional paradigm for monitoring and control be sufficiently extensible to accommodate additional, possibly unanticipated aspects of network operation and management.

    A third goal is that the architecture be, as much as possible, independent of the architecture and mechanisms of particular hosts or particular gateways.

  • Elements of the Architecture

    • The SNMP architecture articulates a solution to the network management problem in terms of:
    • The scope of the management information

      • The scope of the management information communicated by operation of the SNMP is exactly that represented by instances of all non-aggregate object types either defined in Internet-standard MIB or defined elsewhere according to the conventions set forth in Internet-standard SMI.

    • The representation of the management information

      • Management information communicated by operation of the SNMP is represented according to the subset of the ASN.1 language that is specified for the definition of non-aggregate types in the SMI.

    • Operations on management information

      • The SNMP models all management agent functions as alterations or inspections of variables. Thus, a protocol entity on a logically remote host (possibly the network element itself) interacts with the management agent resident on the network element in order to retrieve (get) or alter (set) variables. This strategy has at least two positive consequences:
        It has the effect of limiting the number of essential management functions realized by the management agent to two: one operation to assign a value to a specified configuration or other parameter and another to retrieve such a value.

        A second effect of this decision is to avoid introducing into the protocol definition support for imperative management commands: the number of such commands is in practice ever-increasing, and the semantics of such commands are in general arbitrarily complex.

    • Form and Meaning of Protocol Exchanges

      • The communication of management information among management entities is realized in the SNMP through the exchange of protocol messages.

    • Definition of Administrative Relationships

      • The SNMP architecture admits a variety of administrative relationships among entities that participate in the protocol. The entities residing at management stations and network elements which communicate with one another using the SNMP are termed SNMP application entities. The peer processes which implement the SNMP, and thus support the SNMP application entities, are termed protocol entities.

    • Form and Meaning of References to Managed Objects.

      • The SMI requires that the definition of a conformant management protocol address:
      • Resolution of ambiguous MIB references.

        • Because the scope of any SNMP operation is conceptually confined to objects relevant to a single network element, and because all SNMP references to MIB objects are (implicitly or explicitly) by unique variable names, there is no possibility that any SNMP reference to any object type defined in the MIB could resolve to multiple instances of that type.

      • Resolution of References across MIB Versions.

        • The object instance referred to by any SNMP operation is exactly that specified as part of the operation request or (in the case of a get-next operation) its immediate successor in the MIB as a whole.

      • Identification of Object Instances.

        • The names for all object types in the MIB are defined explicitly either in the Internet-standard MIB or in other documents which conform to the naming conventions of the SMI. The SMI requires that conformant management protocols define mechanisms for identifying individual instances of those object types for a particular network element.

        The type-specific naming of object instances is defined below for a number of classes of object types. Instances of an object type to which none of the following naming conventions are applicable are named by OBJECT IDENTIFIERs of the form x.0, where x is the name of said object type in the MIB definition.

        For example, suppose one wanted to identify an instance of the variable sysDescr The object class for sysDescr is:
        iso org dod internet mgmt mib system sysDescr
        1 3 6 1 2 1 1 1

        Hence, the object type, x, would be 1.3.6.1.2.1.1.1 to which is appended an instance sub-identifier of 0. That is, 1.3.6.1.2.1.1.1.0 identifies the one and only instance of sysDescr.
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EXAMPLES 
Example 1: Table Traversal



By the SNMP exchange sketched below, an SNMP application entity might extract the 

destination address and next hop gateway for each entry in the routing table of a 

particular network element. Suppose that this routing table has three entries:



          Destination           NextHop            Metric

          10.0.0.99             89.1.1.42          5

          9.1.2.3               99.0.0.3           3

          10.0.0.51             89.1.1.42          5



The management station sends to the SNMP agent a GetNextRequest-PDU containing 

the indicated OBJECT IDENTIFIER values as the requested variable names:



GetNextRequest ( ipRouteDest, ipRouteNextHop, ipRouteMetric1 )



The SNMP agent responds with a GetResponse-PDU:



              GetResponse (( ipRouteDest.9.1.2.3 =  "9.1.2.3" ),

                      ( ipRouteNextHop.9.1.2.3 = "99.0.0.3" ),

                      ( ipRouteMetric1.9.1.2.3 = 3 ))



The management station continues with:



              GetNextRequest ( ipRouteDest.9.1.2.3,

                      ipRouteNextHop.9.1.2.3,



                      ipRouteMetric1.9.1.2.3 )



The SNMP agent responds:



              GetResponse (( ipRouteDest.10.0.0.51 = "10.0.0.51" ),

                      ( ipRouteNextHop.10.0.0.51 = "89.1.1.42" ),

                      ( ipRouteMetric1.10.0.0.51 = 5 ))



The management station continues with:



              GetNextRequest ( ipRouteDest.10.0.0.51,

                      ipRouteNextHop.10.0.0.51,

                      ipRouteMetric1.10.0.0.51 )



The SNMP agent responds:



              GetResponse (( ipRouteDest.10.0.0.99 = "10.0.0.99" ),

                      ( ipRouteNextHop.10.0.0.99 = "89.1.1.42" ),

                      ( ipRouteMetric1.10.0.0.99 = 5 ))



The management station continues with:



              GetNextRequest ( ipRouteDest.10.0.0.99,

                      ipRouteNextHop.10.0.0.99,

                      ipRouteMetric1.10.0.0.99 )



As there are no further entries in the table, the SNMP agent returns those objects that 

are next in the lexicographical ordering of the known object names.  This response 

signals the end of the routing table to the management station.
Example 2: Network Management Configuration



          +------------------+       +----------------+      +----------------+

          |  Region #1 INOC  |       |Region #2 INOC  |      |PC in Region #3 |

          |                  |       |                |      |                |

          |Domain=Region #1  |       |Domain=Region #2|      |Domain=Region #3|

          |CPU=super-mini-1  |       |CPU=super-mini-1|      |CPU=Clone-1     |

          |PCommunity=pub    |       |PCommunity=pub  |      |PCommunity=slate|

          |                  |       |                |      |                |

          +------------------+       +----------------+      +----------------+

                 /|                        /|                     /|

                  |                          |                       |

                  |                          |                       |

                  |                         |/                      |

                  |               +----------------+                 |

                  +-------------->| Region #3 INOC  |<---------------+

                                  |                 |

                                  |Domain=Region #3 |

                                  |CPU=super-mini-2 |

                                  |PCommunity=pub,  |

                                  |         slate   |

                                  |DCommunity=secret|

                  +-------------->|                 |<---------------+

                  |               +-----------------+                |

                  |                         /|                      |

                  |                          |                       |

                  |                          |                       |

                 |/                        |/                     |/

          +-----------------+     +-----------------+       +-----------------+

          |Domain=Region#3  |     |Domain=Region#3  |       |Domain=Region#3  |

          |CPU=router-1     |     |CPU=mainframe-1  |       |CPU=modem-1      |

          |DCommunity=secret|     |DCommunity=secret|       |DCommunity=secret|

          +-----------------+     +-----------------+       +-----------------+



Domain:  the administrative domain of the element

PCommunity:  the name of a community utilizing a proxy agent

DCommunity:  the name of a direct community

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PROTOCOL RELATIONS
■ Parent layer
■ Child layer
UDP
AppleTalk DDP
SNMP
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GLOSSARY
MIB
MIB (Management Information Base) is database of objects that can be monitored by a network management system. Both SNMP and RMON use standardized MIB formats that allows any SNMP and RMON tools to monitor any device defined by a MIB.

NMSs
NMSs (network-management systems) is an NMS executes applications that monitor and control managed devices.


SMI
SMI(Structure of Management Information) is a component of network management systems that defines the structure of management information as a tree with objects as leaves.

SNMP Architecture
SNMP architectural model is a collection of network management stations and network elements.


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REFERENCES
Related links:
                SMI numbers
                SMI private enterprise numbers
RFCs:
[RFC 1089] SNMP over Ethernet.
                Defines SNMP ethertype (0x814C).
[RFC 1155] Structure and Identification of Management Information for TCP/IP-based Internets.
                Obsoletes: RFC 1065.
[RFC 1156] Management Information Base for Network Management of TCP/IP-based internets.
                Obsoletes: RFC 1066.
[RFC 1157] A Simple Network Management Protocol (SNMP).
                Obsoletes: RFC 1098.
[RFC 1187] Bulk Table Retrieval with the SNMP.
[RFC 1212] Concise MIB Definitions.
[RFC 1213] Management Information Base for Network Management of TCP/IP-based internets: MIB-II.
                Obsoletes: RFC 1158.
[RFC 1214] OSI Internet Management: Management Information Base.
[RFC 1215] A Convention for Defining Traps for use with the SNMP.
[RFC 1224] Techniques for Managing Asynchronously Generated Alerts.
[RFC 1227] SNMP MUX Protocol and MIB.
[RFC 1230] IEEE 802.4 Token Bus MIB.
[RFC 1233] Definitions of Managed Objects for the DS3 Interface Type.
[RFC 1238] CLNS MIB for use with Connectionless Network Protocol (ISO 8473) and End System to Intermediate System (ISO 9542).
                Obsoletes: RFC 1162.
[RFC 1239] Reassignment of Experimental MIBs to Standard MIBs.
                Updates: RFC 1229, RFC 1230, RFC 1231, RFC 1232, RFC 1233.
[RFC 1269] Definitions of Managed Objects for the Border Gateway Protocol (Version 3).
[RFC 1270] SNMP Communications Services.
[RFC 1285] FDDI Management Information Base.
[RFC 1303] A Convention for Describing SNMP-based Agents.
[RFC 1351] SNMP Administrative Model.
[RFC 1352] SNMP Security Protocols.
[RFC 1353] Definitions of Managed Objects for Administration of SNMP Parties.
[RFC 1369] Implementation Notes and Experience for The Internet Ethernet MIB.
[RFC 1381] SNMP MIB Extension for X.25 LAPB.
[RFC 1382] SNMP MIB Extension for the X.25 Packet Layer.
[RFC 1404] A Model for Common Operational Statistics.
[RFC 1414] Identification MIB.
[RFC 1418] SNMP over OSI.
                Obsoletes: RFC 1161, RFC 1283.
[RFC 1419] SNMP over AppleTalk.
[RFC 1420] SNMP over IPX.
                Obsoletes: RFC 1298.
[RFC 1441] Introduction to version 2 of the Internet-standard Network Management Framework.
[RFC 1445] Administrative Model for version 2 of the Simple Network Management Protocol (SNMPv2).
[RFC 1446] Security Protocols for version 2 of the Simple Network Management Protocol (SNMPv2).
[RFC 1447] Party MIB for version 2 of the Simple Network Management Protocol (SNMPv2).
[RFC 1451] Manager-to-Manager Management Information Base.
[RFC 1461] SNMP MIB extension for Multiprotocol Interconnect over X.25.
[RFC 1471] The Definitions of Managed Objects for the Link Control Protocol of the Point-to-Point Protocol.
[RFC 1472] The Definitions of Managed Objects for the Security Protocols of the Point-to-Point Protocol.
[RFC 1473] The Definitions of Managed Objects for the IP Network Control Protocol of the Point-to-Point Protocol.
[RFC 1474] The Definitions of Managed Objects for the Bridge Network Control Protocol of the Point-to-Point Protocol.
[RFC 1493] Definitions of Managed Objects for Bridges.
                Obsoletes: RFC 1286.
[RFC 1503] Algorithms for Automating Administration in SNMPv2 Managers.
[RFC 1512] FDDI Management Information Base
                Updates: RFC 1285.
[RFC 1513] Token Ring Extensions to the Remote Network Monitoring MIB.
                Updates: RFC 1271.
[RFC 1525] Definitions of Managed Objects for Source Routing Bridges.
                Obsoletes: RFC 1286.
[RFC 1559] DECnet Phase IV MIB Extensions.
                Obsoletes: RFC 1289.
[RFC 1592] Simple Network Management Protocol Distributed Protocol Interface Version 2.0.
                Obsoletes: RFC 1228.
[RFC 1593] SNA APPN Node MIB.
[RFC 1611] DNS Server MIB Extensions.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.dns (1.3.6.1.2.1.32).
[RFC 1612] DNS Resolver MIB Extensions.
[RFC 1628] UPS Management Information Base.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.upsMIB (1.3.6.1.2.1.33).
[RFC 1657] Definitions of Managed Objects for the Fourth Version of the Border Gateway Protocol (BGP-4) using SMIv2.
[RFC 1658] Definitions of Managed Objects for Character Stream Devices using SMIv2.
                Obsoletes: RFC 1316.
[RFC 1659] Definitions of Managed Objects for RS-232-like Hardware Devices using SMIv2.
                Obsoletes: RFC 1317.
[RFC 1660] Definitions of Managed Objects for Parallel-printer-like Hardware Devices using SMIv2.
                Obsoletes: RFC 1318.
[RFC 1666] Definitions of Managed Objects for SNA NAUs using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.snanauMIB (1.3.6.1.2.1.34).
                Obsoletes: RFC 1665.
[RFC 1694] Definitions of Managed Objects for SMDS Interfaces using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.sipMIB (1.3.6.1.2.1.36).
                Obsoletes: RFC 1304.
[RFC 1696] Modem Management Information Base (MIB) using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.mdmMIB (1.3.6.1.2.1.38).
[RFC 1697] Relational Database Management System (RDBMS) Management Information Base (MIB) using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.rdbmsMIB (1.3.6.1.2.1.39).
[RFC 1724] RIP Version 2 MIB Extension.
                Obsoletes: RFC 1389.
[RFC 1742] AppleTalk Management Information Base II.
                Obsoletes: RFC 1243.
[RFC 1747] Definitions of Managed Objects for SNA Data Link Control (SDLC) using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.snaDLC (1.3.6.1.2.1.41).
[RFC 1748] IEEE 802.5 MIB using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.dot5SrMIB (1.3.6.1.2.1.42).
                Obsoletes: RFC 1231, RFC 1743.
[RFC 1749] IEEE 802.5 Station Source Routing MIB using SMIv2.
                Updates: RFC 1748.
[RFC 1792] TCP/IPX Connection Mib Specification.
[RFC 1812] Requirements for IP Version 4 Routers.
[RFC 1850] OSPF Version 2 Management Information Base.
                Obsoletes: RFC 1253.
[RFC 1901] Introduction to Community-based SNMPv2.
[RFC 1909] An Administrative Infrastructure for SNMPv2.
[RFC 1910] User-based Security Model for SNMPv2.
[RFC 2006] The Definitions of Managed Objects for IP Mobility Support using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.mipMIB (1.3.6.1.2.1.44).
[RFC 2011] SNMPv2 Management Information Base for the Internet Protocol using SMIv2.
                Updates SNMP MIB iso.org.dod.internet.mgmt.mib-2.icmp (1.3.6.1.2.1.5).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ipMIB (1.3.6.1.2.1.48).
[RFC 2012] SNMPv2 Management Information Base for the Transmission Control Protocol using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.tcpMIB (1.3.6.1.2.1.49).
                Updates: RFC 1213.
[RFC 2013] SNMPv2 Management Information Base for the User Datagram Protocol using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.udpMIB (1.3.6.1.2.1.50).
                Updates: RFC 1213.
[RFC 2020] Definitions of Managed Objects for IEEE 802.12 Interfaces.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.dot12MIB (1.3.6.1.2.1.45).
[RFC 2021] Remote Network Monitoring Management Information Base Version 2 using SMIv2.
[RFC 2024] Definitions of Managed Objects for Data Link Switching using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.dlswMIB (1.3.6.1.2.1.46).
[RFC 2039] Applicablity of Standards Track MIBs to Management of World Wide Web Servers.
[RFC 2051] Definitions of Managed Objects for APPC using SMIv2.
[RFC 2074] Remote Network Monitoring MIB Protocol Identifiers.
[RFC 2096] IP Forwarding Table MIB.
                Obsoletes: RFC 1354.
[RFC 2108] Definitions of Managed Objects for IEEE 802.3 Repeater Devices using SMIv2.
                Obsoletes: RFC 1516.
[RFC 2115] Management Information Base for Frame Relay DTEs Using SMIv2.
                Obsoletes: RFC 1315.
[RFC 2127] ISDN Management Information Base using SMIv2.
[RFC 2128] Dial Control Management Information Base using SMIv2.
[RFC 2206] RSVP Management Information Base using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.rsvp (1.3.6.1.2.1.51).
[RFC 2213] Integrated Services Management Information Base using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.intSrv (1.3.6.1.2.1.52).
[RFC 2214] Integrated Services Management Information Base Guaranteed Service Extensions using SMIv2.
[RFC 2232] Definitions of Managed Objects for DLUR using SMIv2.
[RFC 2238] Definitions of Managed Objects for HPR using SMIv2.
[RFC 2239] Definitions of Managed Objects for IEEE 802.3 Medium Attachment Units (MAUs) using SMIv2.
[RFC 2262] Message Processing and Dispatching for the Simple Network Management Protocol (SNMP).
[RFC 2263] SNMPv3 Applications.
[RFC 2264] User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3).
[RFC 2266] Definitions of Managed Objects for IEEE 802.12 Repeater Devices.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.vgRptrMIB (1.3.6.1.2.1.53).
[RFC 2287] Definitions of System-Level Managed Objects for Applications.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.sysApplMIB (1.3.6.1.2.1.54).
[RFC 2320] Definitions of Managed Objects for Classical IP and ARP Over ATM Using SMIv2 (IPOA-MIB).
[RFC 2417] Definitions of Managed Objects for Multicast over UNI 3.0/3.1 based ATM Networks.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.marsMIB (1.3.6.1.2.1.57).
                Obsoletes: RFC 2366.
[RFC 2438] Advancement of MIB specifications on the IETF Standards Track.
[RFC 2452] IP Version 6 Management Information Base for the Transmission Control Protocol.
[RFC 2454] IP Version 6 Management Information Base for the User Datagram Protocol.
[RFC 2455] Definitions of Managed Objects for APPN.
                Obsoletes: RFC 2155.
[RFC 2456] Definitions of Managed Objects for APPN TRAPS.
[RFC 2457] Definitions of Managed Objects for Extended Border Node.
[RFC 2465] Management Information Base for IP Version 6: Textual Conventions and General Group.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ipv6MIB (1.3.6.1.2.1.55).
[RFC 2466] Management Information Base for IP Version 6: ICMPv6 Group.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ipv6IcmpMIB (1.3.6.1.2.1.56).
[RFC 2494] Definitions of Managed Objects for the DS0 and DS0 Bundle Interface Type.
[RFC 2512] Accounting Information for ATM Networks.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.atmAccountingInformationMIB (1.3.6.1.2.1.59).
[RFC 2513] Managed Objects for Controlling the Collection and Storage of Accounting Information for Connection-Oriented Networks.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.accountingControlMIB (1.3.6.1.2.1.60).
[RFC 2514] Definitions of Textual Conventions and OBJECT-IDENTITIES for ATM Management.
[RFC 2515] Definitions of Managed Objects for ATM Management.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.atmMIB (1.3.6.1.2.1.37).
                Obsoletes: RFC 1695.
[RFC 2561] Base Definitions of Managed Objects for TN3270E Using SMIv2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.IANATn3270eTCMIB (1.3.6.1.2.1.61).
[RFC 2562] Definitions of Protocol and Managed Objects for TN3270E Response Time Collection Using SMIv2 (TN3270E-RT-MIB).
[RFC 2564] Application Management MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.applicationMib (1.3.6.1.2.1.62).
[RFC 2578] Structure of Management Information Version 2 (SMIv2).
                Obsoletes: RFC 1442, RFC 1902.
[RFC 2579] Textual Conventions for SMIv2.
                Obsoletes: RFC 1443, RFC 1903.
[RFC 2580] Conformance Statements for SMIv2.
                Obsoletes: RFC 1444, RFC 1904.
[RFC 2584] Definitions of Managed Objects for APPN/HPR in IP Networks.
[RFC 2594] Definitions of Managed Objects for WWW Services.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.wwwMIB (1.3.6.1.2.1.65).
[RFC 2601] ILMI-Based Server Discovery for ATMARP.
[RFC 2602] ILMI-Based Server Discovery for MARS.
[RFC 2603] ILMI-Based Server Discovery for NHRP.
[RFC 2605] Directory Server Monitoring MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.dsMIB (1.3.6.1.2.1.66).
                Obsoletes: RFC 1567.
[RFC 2613] Remote Network Monitoring MIB Extensions for Switched Networks Version 1.0.
[RFC 2618] RADIUS Authentication Client MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.radiusMIB (1.3.6.1.2.1.67).
[RFC 2619] RADIUS Authentication Server MIB.
[RFC 2620] RADIUS Accounting Client MIB.
[RFC 2621] RADIUS Accounting Server MIB.
[RFC 2662] Definitions of Managed Objects for the ADSL Lines.
[RFC 2666] Definitions of Object Identifiers for Identifying Ethernet Chip Sets.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.etherChipsetMIB (1.3.6.1.2.1.70).
[RFC 2667] IP Tunnel MIB.
[RFC 2669] DOCSIS Cable Device MIB Cable Device Management Information Base for DOCSIS compliant Cable Modems and Cable Modem Termination Systems.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.docsDev (1.3.6.1.2.1.69).
[RFC 2670] Radio Frequency (RF) Interface Management Information Base for MCNS/DOCSIS compliant RF interfaces.
[RFC 2674] Definitions of Managed Objects for Bridges with Traffic Classes, Multicast Filtering and Virtual LAN Extensions.
[RFC 2677] Definitions of Managed Objects for the NBMA Next Hop Resolution Protocol (NHRP).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.nhrpMIB (1.3.6.1.2.1.71).
[RFC 2707] Job Monitoring MIB - V1.0.
[RFC 2708] Job Submission Protocol Mapping Recommendations for the Job Monitoring MIB.
[RFC 2720] Traffic Flow Measurement: Meter MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.flowMIB (1.3.6.1.2.1.40).
                Obsoletes: RFC 2064.
[RFC 2721] RTFM: Applicability Statement.
[RFC 2722] Traffic Flow Measurement: Architecture.
                Obsoletes: RFC 2063.
[RFC 2723] SRL: A Language for Describing Traffic Flows and Specifying Actions for Flow Groups.
[RFC 2724] RTFM: New Attributes for Traffic Flow Measurement.
[RFC 2737] Entity MIB (Version 2).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.entityMIB (1.3.6.1.2.1.47).
                Obsoletes: RFC 2037.
[RFC 2741] Agent Extensibility (AgentX) Protocol Version 1.
                Obsoletes: RFC 2257.
[RFC 2742] Definitions of Managed Objects for Extensible SNMP Agents.
[RFC 2758] Definitions of Managed Objects for Service Level Agreements Performance Monitoring.
[RFC 2786] Diffie-Helman USM Key Management Information Base and Textual Convention.
[RFC 2787] Definitions of Managed Objects for the Virtual Router Redundancy Protocol.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.vrrpMIB (1.3.6.1.2.1.68).
[RFC 2788] Network Services Monitoring MIB.
                Obsoletes: RFC 2248.
[RFC 2789] Mail Monitoring MIB.
                Obsoletes: RFC 1566, RFC 2249.
[RFC 2790] Host Resources MIB.
                Obsoletes: RFC 1514.
[RFC 2819] Remote Network Monitoring Management Information Base.
                Obsoletes: RFC 1757.
[RFC 2837] Definitions of Managed Objects for the Fabric Element in Fibre Channel Standard.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.fcFeMIB (1.3.6.1.2.1.75).
[RFC 2856] Textual Conventions for Additional High Capacity Data Types.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.hcnumTC (1.3.6.1.2.1.78).
[RFC 2863] The Interfaces Group MIB.
                Obsoletes: RFC 2233.
[RFC 2864] The Inverted Stack Table Extension to the Interfaces Group MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ifInvertedStackMIB (1.3.6.1.2.1.77).
[RFC 2895] Remote Network Monitoring MIB Protocol Identifier Reference.
                Updated by: RFC 3395.
                Obsoletes: RFC 2074.
[RFC 2896] Remote Network Monitoring MIB Protocol Identifier Macros.
[RFC 2922] Physical Topology MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ptopoMIB (1.3.6.1.2.1.79).
[RFC 2925] Definitions of Managed Objects for Remote Ping, Traceroute, and Lookup Operations.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.pingMIB (1.3.6.1.2.1.80).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.traceRouteMIB (1.3.6.1.2.1.81).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.lookupMIB (1.3.6.1.2.1.82).
[RFC 2932] IPv4 Multicast Routing MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ipMRouteStdMIB (1.3.6.1.2.1.83).
[RFC 2933] Internet Group Management Protocol MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.igmpStdMIB (1.3.6.1.2.1.85).
[RFC 2934] Protocol Independent Multicast MIB for IPv4.
[RFC 2940] Definitions of Managed Objects for Common Open Policy Service (COPS) Protocol Clients.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.copsClientMIB (1.3.6.1.2.1.89).
[RFC 2954] Definitions of Managed Objects for Frame Relay Service.
                Obsoletes: RFC 1604.
[RFC 2955] Definitions of Managed Objects for Monitoring and Controlling the Frame Relay/ATM PVC Service Interworking Function.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.frAtmIwfMIB (1.3.6.1.2.1.10.86).
[RFC 2959] Real-Time Transport Protocol Management Information Base.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.rtpMIB (1.3.6.1.2.1.10.87).
[RFC 2962] An SNMP Application Level Gateway for Payload Address Translation.
[RFC 2975] Introduction to Accounting Management.
[RFC 2981] Event MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.dismanEventMIB (1.3.6.1.2.1.88).
[RFC 2982] Distributed Management Expression MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.dismanExpressionMIB (1.3.6.1.2.1.90).
[RFC 3014] Notification Log MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.notificationLogMIB (1.3.6.1.2.1.92).
[RFC 3019] IP Version 6 Management Information Base for The Multicast Listener Discovery Protocol.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.mldMIB (1.3.6.1.2.1.91).
[RFC 3020] Definitions of Managed Objects for Monitoring and Controlling the UNI/NNI Multilink Frame Relay Function.
[RFC 3027] Protocol Complications with the IP Network Address Translator.
[RFC 3055] Management Information Base for the PINT Services Architecture.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.pintMIB (1.3.6.1.2.1.93).
[RFC 3083] Baseline Privacy Interface Management Information Base for DOCSIS Compliant Cable Modems and Cable Modem Termination Systems.
[RFC 3127] Authentication, Authorization, and Accounting: Protocol Evaluation.
[RFC 3144] Remote Monitoring MIB Extensions for Interface Parameters Monitoring.
[RFC 3165] Definitions of Managed Objects for the Delegation of Management Scripts.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.scriptMIB (1.3.6.1.2.1.64).
                Obsoletes: RFC 2592.
[RFC 3179] Script MIB Extensibility Protocol Version 1.1.
                Obsoletes: RFC 2593.
[RFC 3201] Definitions of Managed Objects for Circuit to Interface Translation.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.circuitIfMIB (1.3.6.1.2.1.94).
[RFC 3202] Definitions of Managed Objects for Frame Relay Service Level Definitions.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.frsldMIB (1.3.6.1.2.1.95).
[RFC 3216] SMIng Objectives.
[RFC 3231] Definitions of Managed Objects for Scheduling Management Operations.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.schedMIB (1.3.6.1.2.1.63).
                Obsoletes: RFC 2591.
[RFC 3273] Remote Network Monitoring Management Information Base for High Capacity Networks.
[RFC 3276] Definitions of Managed Objects for High Bit-Rate DSL - 2nd generation (HDSL2) and Single-Pair High-Speed Digital Subscriber Line (SHDSL) Lines.
[RFC 3287] Remote Monitoring MIB Extensions for Differentiated Services.
[RFC 3289] Management Information Base for the Differentiated Services Architecture.
[RFC 3291] Textual Conventions for Internet Network Addresses.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.inetAddressMIB (1.3.6.1.2.1.76).
                Obsoletes: RFC 2851.
[RFC 3295] Definitions of Managed Objects for the General Switch Management Protocol (GSMP).
[RFC 3317] Differentiated Services Quality of Service Policy Information Base.
[RFC 3318] Framework Policy Information Base.
[RFC 3371] Layer Two Tunneling Protocol "L2TP" Management Information Base.
[RFC 3395] Remote Network Monitoring MIB Protocol Identifier Reference Extensions.
                Updates: RFC 2895.
[RFC 3410] Introduction and Applicability Statements for Internet Standard Management Framework.
                Obsoletes: RFC 2570.
[RFC 3411] An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks.
                STD: 62.
                Obsoletes: RFC 2571.
[RFC 3412] Message Processing and Dispatching for the Simple Network Management Protocol (SNMP).
                STD: 62.
                Obsoletes: RFC 2572.
[RFC 3413] Simple Network Management Protocol (SNMP) Applications.
                STD: 62.
                Obsoletes: RFC 2573.
[RFC 3414] User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3).
                STD: 62.
                Obsoletes: RFC 2574.
[RFC 3415] View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP).
                STD: 62.
                Obsoletes: RFC 2575.
[RFC 3416] Version 2 of the Protocol Operations for the Simple Network Management Protocol (SNMP).
                STD: 62.
                Obsoletes: RFC 1905.
[RFC 3417] Transport Mappings for the Simple Network Management Protocol (SNMP).
                STD: 62.
                Obsoletes: RFC 1906.
[RFC 3418] Management Information Base (MIB) for the Simple Network Management Protocol (SNMP).
                STD: 62.
                Obsoletes: RFC 1907.
[RFC 3419] Textual Conventions for Transport Addresses.
                Defines the transport address MIB.
[RFC 3430] Simple Network Management Protocol (SNMP) over Transmission Control Protocol (TCP) Transport Mapping.
                Defines the use of TCP as a transport protocol for SNMP.
[RFC 3433] Entity Sensor Management Information Base.
                Defines the Entity sensor MIB.
[RFC 3434] Remote Monitoring MIB Extensions for High Capacity Alarms.
[RFC 3440] Definitions of Extension Managed Objects for Asymmetric Digital Subscriber Lines.
[RFC 3498] Definitions of Managed Objects for Synchronous Optical Network (SONET) Linear Automatic Protection Switching (APS) Architectures.
[RFC 3512] Configuring Networks and Devices with Simple Network Management Protocol (SNMP).
[RFC 3535] Overview of the 2002 IAB Network Management Workshop.
[RFC 3559] Multicast Address Allocation MIB.
[RFC 3584] Coexistence between Version 1, Version 2, and Version 3 of the Internet-standard Network Management Framework.
                BCP: 74.
                Obsoletes: RFC 2576.
[RFC 3591] Definitions of Managed Objects for the Optical Interface Type.
[RFC 3592] Definitions of Managed Objects for the Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) Interface Type.
                Obsoletes: RFC 2558.
[RFC 3593] Textual Conventions for MIB Modules Using Performance History Based on 15 Minute Intervals.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.perfHistTCMIB (1.3.6.1.2.1.58).
                Obsoletes: RFC 2493.
[RFC 3595] Textual Conventions for IPv6 Flow Label.
[RFC 3606] Definitions of Supplemental Managed Objects for ATM Interface.
[RFC 3621] Power Ethernet MIB.
[RFC 3635] Definitions of Managed Objects for the Ethernet-like Interface Types.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.etherMIB (1.3.6.1.2.1.35).
                Obsoletes: RFC 2665.
[RFC 3636] Definitions of Managed Objects for IEEE 802.3 Medium Attachment Units (MAUs).
                Obsoletes: RFC 1515, RFC 2668.
[RFC 3637] Definitions of Managed Objects for the Ethernet WAN Interface Sublayer.
[RFC 3638] Applicability Statement for Reclassification of RFC 1643 to Historic Status.
                Obsoletes: RFC 1643.
[RFC 3703] Policy Core Lightweight Directory Access Protocol (LDAP) Schema.
[RFC 3705] High Capacity Textual Conventions for MIB Modules Using Performance History Based on 15 Minute Intervals.
[RFC 3728] Definitions of Managed Objects for Very High Speed Digital Subscriber Lines (VDSL).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.transmission.vdsl (1.3.6.1.2.1.10.97).
[RFC 3729] Application Performance Measurement MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.rmon.apm (1.3.6.1.2.1.16.23).
[RFC 3737] IANA Guidelines for the Registry of Remote Monitoring (RMON) MIB modules.
[RFC 3747] The Differentiated Services Configuration MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.diffServConfigMib (1.3.6.1.2.1.108).
[RFC 3780] SMIng - Next Generation Structure of Management Information.
[RFC 3781] Next Generation Structure of Management Information (SMIng) Mappings to the Simple Network Management Protocol (SNMP).
[RFC 3805] Printer MIB v2.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.printMIB (1.3.6.1.2.1.43).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ianaPrinterMIB (1.3.6.1.2.1.109).
                Obsoletes: RFC 1759.
[RFC 3806] Printer Finishing MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ianafinisherMIB (1.3.6.1.2.1.110).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.finisherMIB (1.3.6.1.2.1.111).
[RFC 3808] IANA Charset MIB.
                iso.org.dod.internet.mgmt.mib-2.ianaCharsetMIB (1.3.6.1.2.1.106).
[RFC 3811] Definitions of Textual Conventions (TCs) for Multiprotocol Label Switching (MPLS) Management.
                iso.org.dod.internet.mgmt.mib-2.transmission.mplsStdMIB (1.3.6.1.2.1.10.166).
[RFC 3812] Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Management Information Base (MIB).
                iso.org.dod.internet.mgmt.mib-2.transmission.mplsStdMIB.MPLS-TE-STD-MIB (1.3.6.1.2.1.10.166.3).
[RFC 3813] Multiprotocol Label Switching (MPLS) Label Switching Router (LSR) Management Information Base (MIB).
                iso.org.dod.internet.mgmt.mib-2.transmission.mplsStdMIB.MPLS-LSR-STD-MIB (1.3.6.1.2.1.10.166.2).
[RFC 3814] Multiprotocol Label Switching (MPLS) Forwarding Equivalence Class To Next Hop Label Forwarding Entry (FEC-To-NHLFE) Management Information Base (MIB).
                iso.org.dod.internet.mgmt.mib-2.transmission.mplsStdMIB.MPLS-FTN-STD-MIB (1.3.6.1.2.1.10.166.8).
[RFC 3815] Definitions of Managed Objects for the Multiprotocol Label Switching (MPLS), Label Distribution Protocol (LDP).
                iso.org.dod.internet.mgmt.mib-2.transmission.mplsStdMIB.MPLS-LDP-STD-MIB (1.3.6.1.2.1.10.166.4).
                iso.org.dod.internet.mgmt.mib-2.transmission.mplsStdMIB.MPLS-LDP-ATM-STD-MIB (1.3.6.1.2.1.10.166.5).
                iso.org.dod.internet.mgmt.mib-2.transmission.mplsStdMIB.MPLS-LDP-FRAME-RELAY-STD-MIB (1.3.6.1.2.1.10.166.6).
                iso.org.dod.internet.mgmt.mib-2.transmission.mplsStdMIB.MPLS-LDP-GENERIC-STD-MIB (1.3.6.1.2.1.10.166.7).
[RFC 3816] Definitions of Managed Objects for RObust Header Compression (ROHC).
                iso.org.dod.internet.mgmt.mib-2.rohcMIB (1.3.6.1.2.1.112).
                iso.org.dod.internet.mgmt.mib-2.rohcUncmprMIB (1.3.6.1.2.1.113).
                iso.org.dod.internet.mgmt.mib-2.rohcRtpMIB (1.3.6.1.2.1.114).
[RFC 3826] The Advanced Encryption Standard (AES) Cipher Algorithm in the SNMP User-based Security Model.
                iso.org.dod.internet.snmpv2.snmpModules.snmpUsmAesMIB (1.3.6.1.6.3.20).
[RFC 3872] Management Information Base for Telephony Routing over IP (TRIP).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.tripTC (1.3.6.1.2.1.115).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.tripMIB (1.3.6.1.2.1.116).
[RFC 3873] Stream Control Transmission Protocol (SCTP) Management Information Base (MIB).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.sctpMIB (1.3.6.1.2.1.104).
[RFC 3877] Alarm Management Information Base (MIB).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.alarmMIB (1.3.6.1.2.1.118).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ianaItuAlarmNumbers (1.3.6.1.2.1.119).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ituAlarmTc (1.3.6.1.2.1.120).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.ituAlarmMIB(1.3.6.1.2.1.121).
[RFC 3878] Alarm Reporting Control Management Information Base (MIB).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.arcMib (1.3.6.1.2.1.117).
[RFC 3895] Definitions of Managed Objects for the DS1, E1, DS2, and E2 Interface Types.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.interface.ifTable.ifEntry.ifType.ds1 (1.3.6.1.2.1.2.2.1.3.18).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.transmission.ds1 (1.3.6.1.2.1.10.18).
                Obsoletes: RFC 2495.
[RFC 3896] Definitions of Managed Objects for the DS3/E3 Interface Type.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.interface.ifTable.ifEntry.ifType.ds3 (1.3.6.1.2.1.2.2.1.3.30).
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.transmission.ds3 (1.3.6.1.2.1.10.30).
                Obsoletes: RFC 2496.
Obsolete RFCs:
[RFC 1065] Structure and Identification of Management Information for TCP/IP-based internets.
                Obsoleted by: RFC 1155.
[RFC 1066] Management Information Base for Network Management of TCP/IP-based internets.
                Obsoleted by: RFC 1156.
[RFC 1067] A Simple Network Management Protocol.
                Obsoleted by: RFC 1098.
[RFC 1098] A Simple Network Management Protocol (SNMP).
                Obsoleted by: RFC 1157.
                Obsoletes: RFC 1067.
[RFC 1158] Management Information Base for Network Management of TCP/IP-based internets: MIB-II.
                Obsoleted by: RFC 1213.
[RFC 1161] SNMP over OSI.
                Obsoleted by: RFC 1418.
[RFC 1162] Connectionless Network Protocol (ISO 8473) and End System to Intermediate System (ISO 9542) Management Information Base.
                Obsoleted by: RFC 1238.
[RFC 1228] SNMP-DPI Simple Network Management Protocol Distributed Program Interface.
                Obsoleted by: RFC 1592.
[RFC 1229] Extensions to the Generic-Interface MIB.
                Obsoleted by: RFC 1573.
[RFC 1231] IEEE 802.5 Token Ring MIB.
                Obsoleted by: RFC 1743, RFC 1748.
[RFC 1232] Definitions of Managed Objects for the DS1 Interface Type.
                Obsoleted by: RFC 1406.
[RFC 1243] AppleTalk Management Information Base.
                Obsoleted by: RFC 1742.
[RFC 1248] OSPF Version 2 Management Information Base.
                Obsoleted by: RFC 1252.
[RFC 1252] OSPF Version 2 Management Information Base.
                Obsoleted by: RFC 1253.
                Obsoletes: RFC 1248.
[RFC 1253] OSPF Version 2 Management Information Base.
                Obsoleted by: RFC 1850.
                Obsoletes: RFC 1252.
[RFC 1271] Remote Network Monitoring Management Information Base.
                Obsoleted by: RFC 1757.
[RFC 1283] SNMP over OSI.
                Obsoleted by: RFC 1418.
                Obsoletes: RFC 1161.
[RFC 1284] Definitions of Managed Objects for the Ethernet-like Interface Types.
                Obsoleted by: RFC 1398.
[RFC 1286] Definitions of Managed Objects for Bridges.
                Obsoleted by: RFC 1493, RFC 1525.
[RFC 1289] DECnet Phase IV MIB Extensions.
                Obsoleted by: RFC 1559.
[RFC 1298] SNMP over IPX.
                Obsoleted by: RFC 1420.
[RFC 1304] Definitions of Managed Objects for the SIP Interface Type.
                Obsoleted by: RFC 1694.
[RFC 1315] Management Information Base for Frame Relay DTEs.
                Obsoleted by: RFC 2115.
[RFC 1316] Definitions of Managed Objects for Character Stream Devices.
                Obsoleted by: RFC 1658.
[RFC 1317] Definitions of Managed Objects for RS-232-like Hardware Devices.
                Obsoleted by: RFC 1659.
[RFC 1318] Definitions of Managed Objects for Parallel-printer-like Hardware Devices.
                Obsoleted by: RFC 1660.
[RFC 1354] IP Forwarding Table MIB.
                Obsoleted by: RFC 2096.
[RFC 1368] Definitions of Managed Objects for IEEE 802.3 Repeater Devices.
                Obsoleted by: RFC 1516.
[RFC 1389] RIP Version 2 MIB Extension.
                Obsoleted by: RFC 1724.
[RFC 1398] Definitions of Managed Objects for the Ethernet-like Interface Types.
                Obsoleted by: RFC 1623.
                Obsoletes: RFC 1284.
[RFC 1406] Definitions of Managed Objects for the DS1 and E1 Interface Types.
                Obsoleted by: RFC 2495.
                Obsoletes: RFC 1232.
[RFC 1407] Definitions of Managed Objects for the DS3/E3 Interface Type.
                Obsoleted by: RFC 2496.
[RFC 1442] Structure of Management Information for version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 1902.
[RFC 1443] Textual Conventions for version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 1903.
[RFC 1444] Conformance Statements for version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 1904.
[RFC 1448] Protocol Operations for version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 1905.
[RFC 1449] Transport Mappings for version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 1906.
[RFC 1450] Management Information Base for version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 1907.
[RFC 1452] Coexistence between version 1 and version 2 of the Internet-standard Network Management Framework.
                Obsoleted by: RFC 1908.
[RFC 1514] Host Resources MIB.
                Obsoleted by: RFC 2790.
[RFC 1515] Definitions of Managed Objects for IEEE 802.3 Medium Attachment Units (MAUs).
                Obsoleted by: RFC 3636.
[RFC 1516] Definitions of Managed Objects for IEEE 802.3 Repeater Devices.
                Obsoleted by: RFC 2108.
                Obsoletes: RFC 1368.
[RFC 1565] Network Services Monitoring MIB.
                Obsoleted by: RFC 2248.
[RFC 1566] Mail Monitoring MIB.
                Obsoleted by: RFC 2249, RFC 2789.
[RFC 1567] X.500 Directory Monitoring MIB.
                Obsoleted by: RFC 2605.
[RFC 1573] Evolution of the Interfaces Group of MIB-II.
                Obsoleted by: RFC 2233.
                Obsoletes: RFC 1229.
[RFC 1595] Definitions of Managed Objects for the SONET/SDH Interface Type.
                Obsoleted by: RFC 2558.
[RFC 1596] Definitions of Managed Objects for Frame Relay Service.
                Obsoleted by: RFC 1604.
[RFC 1604] Definitions of Managed Objects for Frame Relay Service.
                Obsoleted by: RFC 2954.
                Obsoletes: RFC 1596.
[RFC 1623] Definitions of Managed Objects for the Ethernet-like Interface Types.
                Obsoleted by: RFC 1643.
                Obsoletes: RFC 1398.
[RFC 1643] Definitions of Managed Objects for the Ethernet-like Interface Types.
                Obsoleted by: RFC 3638.
                Obsoletes: RFC 1398, RFC 1623.
[RFC 1650] Definitions of Managed Objects for the Ethernet-like Interface Types using SMIv2.
                Obsoleted by: RFC 2358.
[RFC 1665] Definitions of Managed Objects for SNA NAUs using SMIv2.
                Obsoleted by: RFC 1666.
[RFC 1695] Definitions of Managed Objects for ATM Management Version 8.0 using SMIv2.
                Obsoleted by: RFC 2515.
[RFC 1743] IEEE 802.5 MIB using SMIv2.
                Obsoleted by: RFC 1748.
                Obsoletes: RFC 1231.
[RFC 1757] Remote Network Monitoring Management Information Base.
                Obsoleted by: RFC 2819.
                Obsoletes: RFC 1271.
[RFC 1759] Printer MIB.
                Defines SNMP MIB iso.org.dod.internet.mgmt.mib-2.printMIB (1.3.6.1.2.1.43).
                Obsoleted by: RFC 3805.
[RFC 1902] Structure of Management Information for Version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 2578.
[RFC 1903] Textual Conventions for Version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 2579.
[RFC 1904] Conformance Statements for Version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 2580.
[RFC 1905] Protocol Operations for Version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 3416.
                Obsoletes: RFC 1448.
[RFC 1906] Transport Mappings for Version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 3417.
                Obsoletes: RFC 1449.
[RFC 1907] Management Information Base for Version 2 of the Simple Network Management Protocol (SNMPv2).
                Obsoleted by: RFC 3418.
                Obsoletes: RFC 1450.
[RFC 1908] Coexistence between Version 1 and Version 2 of the Internet-standard Network Management Framework.
                Obsoleted by: RFC 2576.
                Obsoletes: RFC 1452.
[RFC 2037] Entity MIB using SMIv2.
                Obsoleted by: RFC 2737.
[RFC 2063] Traffic Flow Measurement: Architecture.
                Obsoleted by: RFC 2722.
[RFC 2064] Traffic Flow Measurement: Meter MIB.
                Obsoleted by: RFC 2720.
[RFC 2089] V2ToV1 Mapping SNMPv2 onto SNMPv1 within a bi-lingual SNMP agent.
                Obsoleted by: RFC 2576.
[RFC 2155] Definitions of Managed Objects for APPN using SMIv2.
                Obsoleted by: RFC 2455.
[RFC 2233] The Interfaces Group MIB using SMIv2.
                Obsoleted by: RFC 2863.
                Obsoletes: RFC 1573.
[RFC 2248] Network Services Monitoring MIB.
                Obsoleted by: RFC 2788.
                Obsoletes: RFC 1565.
[RFC 2249] Mail Monitoring MIB.
                Obsoleted by: RFC 2789.
                Obsoletes: RFC 1566.
[RFC 2257] Agent Extensibility (AgentX) Protocol Version 1.
                Obsoleted by: RFC 2741.
[RFC 2261] An Architecture for Describing SNMP Management Frameworks.
                Obsoleted by: RFC 2271.
[RFC 2265] View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP).
                Obsoleted by: RFC 2275.
[RFC 2271] An Architecture for Describing SNMP Management Frameworks.
                Obsoleted by: RFC 2571.
[RFC 2272] Message Processing and Dispatching for the Simple Network Management Protocol (SNMP).
                Obsoleted by: RFC 2572.
[RFC 2273] SNMPv3 Applications.
                Obsoleted by: RFC 2573.
[