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RFC 1214

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OSI internet management: Management Information Base

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Network Working Group                                 L. Labarre, Editor
Request for Comments: 1214                                         MITRE
                                                              April 1991


          OSI Internet Management: Management Information Base

Status of this Memo

   This RFC specifies an IAB standards track protocol for the Internet
   community, and requests discussion and suggestions for improvements.
   Please refer to the current edition of the "IAB Official Protocol
   Standards" for the standardization state and status of this protocol.
   Distribution of this memo is unlimited.

Abstract

   This RFC documents a MIB for use with CMIP, either over pure OSI
   stacks or with the CMIP over TCP specification.  It redefines objects
   comprised by the second revision of the Management Information Base
   for Network Management of TCP/IP-based internets: MIB-II so as to
   conform to the OSI structure of management information.  This
   document is a product of the IETF OIM working group.

Table of Contents

   1. Introduction................................................    2
   2. Additions to MIB-II.........................................    3
   2.1 Structure of the OIM Subtree...............................    3
   2.2 Supporting ISO Definitions.................................    3
   2.3 Additions for Object Instance Identification...............    4
   2.3.1 Distinguished Names......................................    4
   2.4 Events.....................................................    5
   2.5 Containment (Naming) Tree Definition.......................    5
   2.6 Changes from RFC 1158......................................    6
   3. Format of OSI Templates.....................................    7
   4. Object Class Definitions....................................    7
   5. Attribute Definitions.......................................   16
   6. Notifications...............................................   44
   7. The Containment Hierarchy...................................   45
   8. ASN.1 Definitions...........................................   49
   9. Acknowledgements............................................   54
   References.....................................................   55
   Appendix 1: Notational Tools for Managed Object Definition.....   57
   A1.1 Overview of Notational Tools..............................   57
   A1.2 Conventions Used in Template Definitions..................   58
   A1.3  Managed Object Class Template............................   60
   A1.4  Package Template.........................................   63

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   A1.5 Parameter Template........................................   67
   A1.6  Name Binding Template....................................   67
   A1.7 Attribute Template........................................   70
   A1.8  Notification Template....................................   73
   Appendix 2: New Objects: Internet SMI Object Type Macros.......   76
   Appendix 3: Supporting Definitions.............................   81
   Security Considerations........................................   82
   Author's Address...............................................   83

1. Introduction

   This memo defines the management information base (MIB) for use with
   the OSI network management protocol in TCP/IP based internets.  It
   formats the Management Information Base (MIB-II) in OSI templates and
   adds variables necessary for use with the OSI management protocol.
   Together with internet memos that define agreements for using the OSI
   management protocol to manage TCP/IP internets (RFC 1189) [3], the
   management information base: MIB-II, and OSI standards defining the
   structure of management information (ISO/IEC DIS 10165) [4,5,6],
   these documents provide an OSI compatible architecture and system for
   managing TCP/IP based internets and in particular the Internet
   community.

   This OSI version of the MIB specification is an incremental
   refinement of MIB-II.  It has been designed according to the
   following policy:  first, maintain compatibility with MIB-II by
   including objects in MIB-II without changes to their registered
   identifiers, syntax, and behaviour;   second, format the MIB-II using
   the OSI structure of information defined templates;  third, add
   attributes necessary for identification using the OSI management
   protocol;  fourth, identify object instances in a manner which is
   compatible with development of a common application programming
   interface for both CMIP and SNMP;  and finally, define notifications
   (events), including those defined by SNMP (RFC 1157) [14], deemed
   necessary for management.

   It is expected that the MIB will grow over time to accommodate the
   changing needs of the Internet.

   As reported in RFC 1109, Report of the Second Ad Hoc Network
   Management Review Group [13], the requirements for SNMP and OSI
   frameworks were more different than anticipated.  Therefore, the
   requirement for compatibility between the SMI/MIB for both frameworks
   was suspended.  This action allowed both frameworks to independently
   define the MIB according to their SMI requirements and views of
   management.   The SNMP response included development of MIB-II.  The
   OSI response is this document which builds on the excellent work done
   in MIB-II, and adds to it attributes necessary to map into the OSI

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   SMI.

   The OIM network management framework consists of: Open Systems
   Interconnection - Structure of Management Information: Parts 1-4,
   ISO/IEC DIS 10165 [4,5,6], with slight modifications to maintain
   compatibility with RFC 1155 [11];  OSI Internet Management:
   Management Information Base, this memo; and the OSI Common Management
   Information Service (CMIS) [7] and  Common Management Information
   Protocol (CMIP) [8].

2. Additions to MIB-II

   Additions to MIB-II fall into the following categories: the addition
   of the managed object class "top" from which all object classes are
   derived; additions for object instance identification purposes
   according to the OSI SMI;  additions for generation of asynchronous
   events; the addition of name bindings which  define the binding
   between objects in the containment (naming) hierarchy; and the
   addition of proposed changes to RFC 1158 that are expected to be
   accepted by the IETF [16].

2.1 Structure of the OIM Subtree

   The oim subtree structure is defined below.  Note that the "cmot"
   subtree has been relabeled to "oim".

        cmot            OBJECT IDENTIFIER ::= {mib 9}
        oim             OBJECT IDENTIFIER ::= {cmot}
        cmotVersion     OBJECT IDENTIFIER ::= {oim 1}
        cmotACSEInfo    OBJECT IDENTIFIER ::= {oim 2}
        cmotSystemId    OBJECT IDENTIFIER ::= {oim 3}
        misc            OBJECT IDENTIFIER ::= {oim 4}
        objects         OBJECT IDENTIFIER ::= {oim 5}
        attributes      OBJECT IDENTIFIER ::= {oim 6}
        events          OBJECT IDENTIFIER ::= {oim 7}
        nameforms       OBJECT IDENTIFIER ::= {oim 8}
        actions         OBJECT IDENTIFIER ::= {oim 9}

2.2 Supporting ISO Definitions

   The OSI defined managed object class "top" [5], as defined by OSI,
   has been added to the MIB.  This managed object class is the root of
   the inheritance hierarchy.  The class "top" contains attributes that
   are inherited by all objects in the MIB.  Pending the progression of
   ISO/IEC DIS 10165 to an International Standard status, "top" and its
   associated attributes are registered in Appendix 3.

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2.3 Additions for Object Instance Identification

   The conventions for identifying objects in the OIM MIB-II for use
   with CMIP are defined below.

2.3.1 Distinguished Names

   The distinguished name of an object shall consist of a sequence of
   relative distinguished names, one for each object on the containment
   path from the root to the object.  Each relative distinguished name
   shall contain exactly one attribute, the "naming" attribute for the
   corresponding class, as specified by a NAME BINDING template.  The
   CMIP ObjectInstance shall be encoded using the distinguishedName
   choice.

   Object classes for which there is only a single instance normally
   implemented in a managed system, other than the "system" managed
   object class, shall use an empty string for their naming attribute
   value, i.e., a string of length zero.

   The format of the naming attribute for the "system" managed object
   class and object classes which normally have multiple instances,
   e.g., table entries, are defined in the attribute templates for the
   naming attributes of those classes.  The formats for naming
   attributes of table entries are compatible with instance
   identification conventions used by SNMP, thereby facilitating the
   development of a common application programming interface that may
   interface to either protocol.

   For example, a distinguished name designating a particular routing
   table entry (of class ipRouteEntry) might be

        {
                { sysName  = "troi.mitre.org"}
                { ipId = ""}
                { ipRoutingTableId = "" }
                { ipRouteEntryId = "129.83.2.17" }
        }.

   The naming attributes for each OIM MIB-II managed object class listed
   in section 5 may be determined by reference to the NAME BINDING
   templates listed in section 8.  The naming attribute definitions can
   be found in the alphabetical listing of all attributes in section 6.

   The following attributes have been defined for MIB-II object classes
   for purposes of object instance identification.

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         Attribute           Identifier              Object

   ifTableId               {attributes 1}         ifTable
   atTableId               {attributes 2}         atTable
   atEntryId               {attributes 3}         atEntry
   ipId                    {attributes 4}         ip
   ipAddrTableId           {attributes 5}         ipAddrTable
   ipRoutingTableId        {attributes 6}         ipRoutingtable
   ipNetToMediaTableId     {attributes 7}         ipNetToMediaTable
   ipNetToMediaEntryId     (attributes 8}         ipNetToMediaEntry
   icmpId                  {attributes 9}         icmp
   tcpId                   {attributes 10}        tcp
   tcpConnTableId          {attributes 11}        tcpConnTable
   tcpConnId               {attributes 12}        tcpConnEntry
   udpId                   {attributes 13}        udp
   udpTable
   udpEntryId              {attributes 15}        udpEntry
   egpId                   {attributes 16}        egp
   egpNeighTableId         {attributes 17}        egpneighTable
   snmpId                  {attributes 18}        snmp
   ipAdEntryId             {attributes 19}        ipAddrEntry
   ipRouteEntryId          {attributes 20}        ipRouteEntry
   ifEntryId               {attributes 21}        ifEntry
   egpNeighEntryId         {attributes 22}        egpNeighEntry
   ifId                    {attributes 23}        interfaces

2.4 Events

   Events have been defined in accordance with the OSI SMI.  These
   events include those defined for SNMP.  The OSI SMI requires that
   events (notifications) are part of a specific managed object class
   definition.  Accordingly the SNMP defined events have been assigned
   to specific objects within the MIB.

           Event                   Identifier              Object

   coldStartEvent                  {events 0}              system
   warmStartEvent                  {events 1}              system
   linkDownEvent                   {events 2}              ifEntry
   linkUpEvent                     {events 3}              ifEntry
   snmpAuthentFailureEvent         {events 4}              snmp
   egpNeighborLossEvent            {events 5}              egpNeighEntry
   entSpecificEvent                {events 6}              system

2.5 Containment (Naming) Tree Definition

   The OSI SMI requires that object classes be bound into the
   containment hierarchy for purposes of naming.  The binding must

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   specify for the managed object class: a) the object which is superior
   to it in the containment hierarchy; and b) an attribute in the
   managed object class that is used to distinguish instances of the
   object at a given level in the containment hierarchy.  The
   containment tree begins with "root".  Agents in managed systems will
   consider root to be immediately above the "system" object in the
   containment hierarchy.  They may ignore any relative distinguished
   names that precede the relative distinguished name for "system".

   The name bindings for objects in the OIM MIB-II are specified in
   section 8.

2.6  Changes from RFC 1158

   The proposed successor to RFC 1158 [16] contains several minor
   additions that have been incorporated into this document.

      o  The sysLocation attribute of the system managed object
         class is changed to GET-REPLACE.

      o  The ipRouteMetric5 and ipRouteInfo attributes are
         added to the ipRouteEntry managed object class.

      o  The textual descriptor of the snmpEnableAuthTraps is
         changed to snmpEnableAuthenTraps.

      o  The PhysAddress textual convention is introduced to
         represent media addresses.

      o  The definition of sysServices is clarified.

      o  New ifType values (29-32) are defined.  In
         addition, the textual-descriptor for the DS1 and E1
         interface types is corrected.

      o  The definition of ipForwarding is clarified.

      o  The definition of ipRouteType is clarified.

      o  The tcpConnState attribute is now GET-REPLACE, to
         support deletion of the TCB associated with a TCP
         connection.  The definition of this object is
         clarified to explain this usage.

      o  The definition of egpNeighEventTrigger is clarified.

      o  The definition of several of the variables in the new
         snmp group are clarified.  In addition, the

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         snmpInBadTypes and snmpOutReadOnlys objects are no
         longer present.  (However, the object identifiers associated
         with those objects are reserved to prevent future use.)

      o  The definition of snmpInReadOnlys is clarified.

      o  The ipRoutingDiscards attribute is added to the ip object.

      o  The optional use of an implementation-dependent, small
         positive integer is disallowed when identifying
         instances of the IP address and routing tables.

3. Format of OSI Templates

   The format of OSI templates is defined in ISO/IEC DIS 10165-4 [6],
   Open Systems Interconnection - Structure of Management Information -
   Part 4: Guidelines for Managed Object Definition.

   The template definitions relevant to this document are included in
   Appendix 1.

4. Object Class Definitions

   The Internet SMI objects are recast into OSI template form using the
   following conventions:

      o MIB II groups become OSI object classes,
        except for the "at" group which has no attributes.

      o Tables become OSI object classes.

      o Table entries become OSI object classes.

      o All other object types become OSI attributes and are
        assigned to object classes according to their association
        in MIB II.

   The templates for the OIM MIB-II object classes are listed in
   alphabetical order below.


   atEntry  MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               atEntryPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                            atEntryId              GET,

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                               atIfIndex           GET-REPLACE,
                               atPhysAddress       GET-REPLACE,
                               atNetAddress        GET-REPLACE;;;
               REGISTERED AS  { atTable 1};

   atTable  MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               atTablePkg PACKAGE
                           -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                    atTableId                      GET;;;
               REGISTERED AS  { at 1};

   egp MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               egpPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               egpId               GET,
                               egpInMsgs           GET,
                               egpInErrors         GET,
                               egpOutMsgs          GET,
                               egpOutErrors        GET,
                            egpAs                  GET;;;
               REGISTERED AS  { mib 8};

   egpNeighEntry MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               egpNeighEntryPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                            egpNeighEntryId        GET,
                            egpNeighState          GET,
                            egpNeighAddr           GET,
                            egpNeighAs             GET,
                            egpNeighInMsgs         GET,
                            egpNeighInErrs         GET,
                            egpNeighOutMsgs        GET,
                            egpNeighOutErrs        GET,
                            egpNeighInErrMsgs      GET,
                            egpNeighOutErrMsgs     GET,
                            egpNeighStateUps       GET,
                            egpNeighStateDowns     GET,
                            egpNeighIntervalHello  GET,
                            egpNeighIntervalPoll   GET,

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                            egpNeighMode           GET,
                            egpNeighEventTrigger   GET-REPLACE;
              NOTIFICATIONS
                            egpNeighborLossEvent;;;
            REGISTERED AS  { egpNeighTable 1};

   egpNeighTable MANAGED OBJECT CLASS
            DERIVED FROM   top;
            CHARACTERIZED BY
               egpNeighTablePkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               egpNeighTableId     GET;;;
               REGISTERED AS  { egp 5};

   icmp MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               icmpPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               icmpId GET,
                               icmpInMsgs          GET,
                               icmpInErrors        GET,
                               icmpInDestUnreachs  GET,
                               icmpInTimeExcds     GET,
                               icmpInParmProbs     GET,
                               icmpInSrcQuenchs    GET,
                               icmpInRedirects     GET,
                               icmpInEchos         GET,
                               icmpInEchoReps      GET,
                               icmpInTimestamps    GET,
                               icmpInTimestampReps GET,
                               icmpInAddrMasks     GET,
                               icmpInAddrMaskReps  GET,
                               icmpOutMsgs         GET,
                               icmpOutErrors       GET,
                               icmpOutDestUnreachs GET,
                               icmpOutTimeExcds    GET,
                               icmpOutParmProbs    GET,
                               icmpOutSrcQuenchs   GET,
                               icmpOutRedirects    GET,
                               icmpOutEchos        GET,
                               icmpOutEchoReps     GET,
                               icmpOutTimestamps   GET,
                               icmpOutTimestampReps GET,
                               icmpOutAddrMasks    GET,
                               icmpOutAddrMaskReps GET;;;

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               REGISTERED AS  { mib 5};

   ifEntry   MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               ifEntryPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                            ifEntryId              GET,
                               ifIndex             GET,
                               ifDescr             GET,
                               ifType              GET,
                               ifMtu               GET,
                               ifSpeed             GET,
                               ifPhysAddress       GET,
                               ifAdminStatus       GET-REPLACE,
                               ifOperStatus        GET,
                               ifLastChange        GET,
                               ifInOctets          GET,
                               ifInUcastPkts       GET,
                               ifInNUcastPkts      GET,
                               ifInDiscards        GET,
                               ifInErrors          GET,
                               ifInUnknownProtos   GET,
                               ifOutOctets         GET,
                               ifOutUcastPkts      GET,
                               ifOutNUcastPkts     GET,
                               ifOutDiscards       GET,
                               ifOutErrors         GET,
                               ifOutQLen           GET,
                               ifSpecific          GET;
               NOTIFICATIONS
                                           linkUpEvent,
                                           linkDownEvent;;;
               REGISTERED AS  { ifTable 1};

   ifTable MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               ifTablePkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                           ifTableId               GET;;;
                REGISTERED AS  { interface 2};

   interfaces MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY

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               interfacesPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               ifId                GET,
                               ifNumber            GET;;;
               REGISTERED AS  { mib 2};

   ip MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               ipPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               ipId                GET,
                               ipForwarding        GET-REPLACE,
                               ipDefaultTTL        GET-REPLACE,
                               ipInReceives        GET,
                               ipInHdrErrors       GET,
                               ipInAddrErrors      GET,
                               ipForwDatagrams     GET,
                               ipInUnknownProtos   GET,
                               ipInDiscards        GET,
                               ipInDelivers        GET,
                               ipOutRequests       GET,
                               ipOutDiscards       GET,
                               ipOutNoRoutes       GET,
                               ipReasmTimeout      GET,
                               ipReasmReqds        GET,
                               ipReasmOKs          GET,
                               ipReasmFails        GET,
                               ipFragOKs           GET,
                               ipFragFails         GET,
                               ipFragCreates       GET,
                               ipRoutingDiscards   GET;;;
               REGISTERED AS  { mib 4};

   ipAddrEntry MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               ipAddrEntryPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               ipAdEntryId         GET,
                               ipAdEntAddr         GET,
                               ipAdEntIfIndex      GET,
                               ipAdEntNetMask      GET,
                               ipAdEntBcastAddr    GET,
                               ipAdEntReasmMaxSize GET;;;

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           REGISTERED AS  { ipAddrTable 1};

   ipAddrTable MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               ipAddrTablePkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                                   ipAddrTableId           GET;;;
               REGISTERED AS  { ip 20};

   ipNetToMediaEntry       MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               ipNetToMediaEntryPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               ipNetToMediaEntryId       GET,
                               ipNetToMediaIfIndex       GET-REPLACE,
                               ipNetToMediaPhysAddress   GET-REPLACE,
                               ipNetToMediaNetAddress    GET-REPLACE,
                               ipNetToMediaType          GET-REPLACE;;;
               REGISTERED AS  { ipNetToMediaTable 1};

   ipNetToMediaTable MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               ipNetToMediaTablePkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                           ipNetToMediaTableId     GET;;;
               REGISTERED AS  { ip 22};

   ipRouteEntry MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               ipRouteEntryPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               ipRouteEntryId      GET,
                               ipRouteDest         GET-REPLACE,
                               ipRouteIfIndex      GET-REPLACE,
                               ipRouteMetric1      GET-REPLACE,
                               ipRouteMetric2      GET-REPLACE,
                               ipRouteMetric3      GET-REPLACE,
                               ipRouteMetric4      GET-REPLACE,
                               ipRouteMetric5      GET-REPLACE,
                               ipRouteNextHop      GET-REPLACE,

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                               ipRouteType         GET-REPLACE,
                               ipRouteProto        GET,
                               ipRouteAge          GET-REPLACE,
                               ipRouteMask         GET-REPLACE,
                               ipRouteInfo         GET-REPLACE;;;
               REGISTERED AS  { ipRoutingTable 1};

   ipRoutingTable MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               ipRoutingTablePkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                           ipRoutingTableId        GET;;;
               REGISTERED AS  { ip 21};

   snmp MANAGED OBJECT CLASS
            DERIVED FROM   top;
            CHARACTERIZED BY
               snmpPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                           snmpId                  GET,
                           snmpInPkts              GET,
                           snmpInBadVersions       GET,
                           snmpInBadCommunityNames GET,
                           snmpInBadCommunityUses  GET,
                           snmpInASNParseErrs      GET,
                           snmpInTooBigs           GET,
                           snmpInNoSuchNames       GET,
                           snmpInBadValues         GET,
                           snmpInReadOnlys         GET,
                           snmpInGenErrs           GET,
                           snmpInTotalReqVars      GET,
                           snmpInTotalSetVars      GET,
                           snmpInGetRequests       GET,
                           snmpInGetNexts          GET,
                           snmpInSetRequests       GET,
                           snmpInGetResponses      GET,
                           snmpInTraps             GET,
                           snmpOutPkts             GET,
                           snmpOutTooBigs          GET,
                           snmpOutNoSuchNames      GET,
                           snmpOutBadValues        GET,
                           snmpOutGenErrs          GET,
                           snmpOutGetRequests      GET,
                           snmpOutGetNexts         GET,
                           snmpOutSetRequests      GET,

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                           snmpOutGetResponses     GET,
                           snmpOutTraps            GET,
                           snmpEnableAuthenTraps   GET-REPLACE;
           NOTIFICATIONS
                           snmpAuthentFailureEvent;;;
               REGISTERED AS  {mib 11};

   system MANAGED OBJECT CLASS
           DERIVED FROM top;
           CHARACTERIZED BY
               systemPkg PACKAGE
                           -- SEE MIB II [16] for attribute semantics
                   ATTRIBUTES
                           sysDescr        GET,
                           sysObjectId     GET,
                           sysUpTime       GET,
                           sysContact      GET-REPLACE,
                           sysName         GET-REPLACE,
                           -- MAJOR HEALTH WARNING sysName is the
                           -- naming attribute and should not be
                           -- modified via remote management without
                           -- coordinated local system changes
                           sysLocation     GET-REPLACE,
                           sysServices     GET;
                   NOTIFICATIONS
                           coldStartEvent,
                           warmStartEvent,
                           entSpecificEvent;;;
   REGISTERED AS   {mib 1};

   tcp MANAGED OBJECT CLASS
            DERIVED FROM   top;
            CHARACTERIZED BY
               tcpPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               tcpId               GET,
                               tcpRtoAlgorithm     GET,
                               tcpRtoMin           GET,
                               tcpRtoMax           GET,
                               tcpMaxConn          GET,
                               tcpActiveOpens      GET,
                               tcpPassiveOpens     GET,
                               tcpAttemptFails     GET,
                               tcpEstabResets      GET,
                               tcpCurrEstab        GET,
                               tcpInSegs           GET,
                               tcpOutSegs          GET,

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                               tcpRetransSegs      GET,
                               tcpInErrs           GET,
                               tcpOutRsts          GET;;;
               REGISTERED AS { mib 6};

   tcpConnEntry MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               tcpConnEntryPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               tcpConnId           GET,
                               tcpConnState        GET-REPLACE,
                               tcpConnLocalAddress GET,
                               tcpConnLocalPort    GET,
                               tcpConnRemAddress   GET,
                               tcpConnRemPort      GET;;;
               REGISTERED AS { tcpConnTable 1 };


   tcpConnTable MANAGED OBJECT CLASS
            DERIVED FROM   top;
            CHARACTERIZED BY
               tcpConnTablePkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               tcpConnTableId      GET;;;
               REGISTERED AS { tcp 13 };

   udp MANAGED OBJECT CLASS
            DERIVED FROM   top;
            CHARACTERIZED BY
               udpPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES
                               udpId               GET,
                               udpInDatagrams      GET,
                               udpNoPorts          GET,
                               udpInErrors         GET,
                               udpOutDatagrams     GET;;;
               REGISTERED AS  { mib 7};

    udpEntry MANAGED OBJECT CLASS
            DERIVED FROM  top;
            CHARACTERIZED BY
               udpEntryPkg PACKAGE
                   -- see MIB II [16] for attribute semantics
               ATTRIBUTES

Top      ToC       Page 16 
                               udpEntryId          GET,
                               udpLocalAddress     GET,
                               udpLocalPort        GET;;;
               REGISTERED AS { udpTable 1 };


   udpTable MANAGED OBJECT CLASS
            DERIVED FROM   top;
            CHARACTERIZED BY
               udpTablePkg PACKAGE
                   -- see MIB II [16] for semantics
               ATTRIBUTES
                               udpTableId          GET;;;
               REGISTERED AS { udp 5 };



(page 16 continued on part 2)

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