TN3270E Working Group INTERNET DRAFT: Status of this Memo This document is an Internet Draft. Internet Drafts are working documents of the Internet Engineering Task Force (IETF), its Areas, and its Working Groups. Note that other groups may also distribute working documents as Internet Drafts. Internet Drafts are draft documents valid for a maximum of six months. Internet Drafts may be updated, replaced, or obsoleted by other documents at any time. It is not appropriate to use Internet Drafts as reference material or to cite them other than as a "working draft" or "work in progress." Please check the I-D abstract listing contained in each Internet Draft directory to learn the current status of this or any Internet Draft. Distribution of this document is unlimited. Abstract The purpose of this memo is to define a Management Information Base (MIB) for configuring and managing TN3270E Servers. The MIB defined by this memo is intended to provide generic support for both Host and Gateway TN3270E Server implementations. It is the intent that the MIB defined herein be extended by subsequent memos to provide non-generic configuration support and to enable TN3270E Response Time Monitoring. It is the intent of this MIB to fully adhere to all prerequisite MIBs unless explicitly stated. Deviations will be documented in corresponding conformance statements. The specification of this MIB will utilize the Structure of Management Information (SMI) for Version 2 of the Simple Network Management Protocol Version (refer to RFC1902, reference [1]). Expires December 1997 [Page 1] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 Table of Contents 1.0 Introduction............................................. 2 2.0 The SNMPv2 Network Management Framework.................. 2 2.1 Object Definitions....................................... 3 3.0 Structure of the MIB..................................... 3 3.1 TN3270E Server Control................................... 3 3.1.1 tn3270eSrvrConfTable................................... 3 3.1.2 tn3270eSrvrPortTable................................... 4 3.1.3 tn3270eSrvrStatsTable.................................. 4 3.2 TN3270E Server Resource Configuration.................... 5 3.2.1 tn3270eIpGroupTable and tn3270eResPoolTable............ 5 3.2.2 tn3270eResMapTable and tn3270eIpMapTable............... 5 3.3 TCP Connection Table Additions........................... 5 4.0 Definitions.............................................. 6 5.0 Security Considerations..................................29 6.0 Acknowledgments..........................................30 7.0 References...............................................30 8.0 Authors' Address.........................................31 1. Introduction This document is a product of the TN3270E Working Group. Its purpose is to define a MIB module for extending the traditional MIBs supported by a TCP/IP implementation for configuration and management of TN3270E Servers. 2. The SNMPv2 Network Management Framework The SNMP Network Management Framework presently consists of three major components. They are: o the SMI, described in RFC 1902 [1], - the mechanisms used for describing and naming objects for the purpose of management. o the MIB-II, STD 17, RFC 1213 [5], - the core set of managed objects for the Internet suite of protocols. o the protocol, RFC 1157 [9] and/or RFC 1905 [7] - the protocol for accessing managed information. Textual conventions are defined in RFC 1903 [6], and conformance statements are defined in RFC 1904 [8]. The Framework permits new objects to be defined for the purpose of experimentation and evaluation. Expires December 1997 [Page 2] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 This memo specifies a MIB module that is compliant to the SNMPv2 SMI. A semantically identical MIB conforming to the SNMPv1 SMI can be produced through the appropriate translation. 2.1. Object Definitions Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the subset of Abstract Syntax Notation One (ASN.1) defined in the SMI. In particular, each object object type is named by an OBJECT IDENTIFIER, an administratively assigned name. The object type together with an object instance serves to uniquely identify a specific instantiation of the object. For human convenience, we often use a textual string, termed the descriptor, to refer to the object type. 3. Structure of the MIB The TN3270E-MIB is split into the following components: o TN3270E Server Control o TN3270E Server Resource Configuration o TCP Connection Table Additions The TN3270E-MIB is defined for support primarily by TN3270E Servers. Use of this MIB by TN3270 Servers that do not support the TN3270E protocol is not explicitly addressed by this memo. A significant portion of the objects do apply in the TN3270 only case. Addressing the TN3270 only case was not done since it is unlikely that this MIB would be implemented by TN3270 only servers. 3.1. TN3270E Server Control This group of objects provides for TN3270 and TN3270E configuration and consists of: o tn3270eSrvrConfTable o tn3270eSrvrPortTable o tn3270eSrvrStatsTable 3.1.1. tn3270eSrvrConfTable The tn3270eSrvrConfTable contains a set of objects primarily for Expires December 1997 [Page 3] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 configuring and managing a TN3270E Server. This table, as well most of the tables in the TN3270E-MIB, are structured to be indexed by the local IP Address (tn3270eSrvrConfIpAddr) and a unsigned integer (tn3270eSrvrConfIndex). The primary index, tn3270eSrvrConfIpAddr, was added to the tables in order for the tables to be used at both a TN3270E Server host implementation as well as by a management application that supports multiple TN3270E capable hosts. The second index element, tn3270eSrvrConfigIndex, was added in order to support multiple TN3270E Servers on the same host. tn3270eSrvrConfInactivityTimer defines the inactivity period for TN3270 and TN3270E Sessions. tn3270eSrvrConfSessionTermState defines how a session should be terminated. The three objects: o tn3270eSrvrConfActivityCheck o tn3270eSrvrConfActivityTimeout o tn3270eSrvrConfActivityInterval defines the parameters for performing the "Telnet Timing Mark Option" as defined by RFC 860 [3]. The object tn3270eSrvrConfActivityOption was defined to enable sending of a NOP command as oppose to a TIMEMARK command. Sending a NOP command results in less overhead then a TIMEMARK command since a client doesn't send a reply. The objects tn3270eSrvrConfAdminStatus and tn3270eSrvrConfOperStatus exists in order to enable remote starting and stopping of a TN3270E Server. tn3270eSrvrConfProtoSupported indicates which of the TN3270 and TN3270E options that a server supports. The object tn3270eSrvrConfSrvrType indicates the implementation type of TN3270E Server that the tn3270eSrvrConfEntry represents. The object tn3270eSrvrConfRowStatus provides the capability to perform remote creation and deletion operations on this table. 3.1.2. tn3270eSrvrPortTable The tn3270eSrvrPortTable exists in order to assign and retrieve the local ports associated with a TN3270E Server. Some implementations support multiple local port usage. 3.1.3. tn3270eSrvrStatsTable The tn3270eSrvrStatsTable defines a series of objects used to provide general statistics on the use of a TN3270E Server. Expires December 1997 [Page 4] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 3.2. TN3270E Server Resource Configuration The TN3270E Server Resource Configuration collection of objects consists of four tables: o tn3270eIpGroupTable o tn3270eResPoolTable o tn3270eResMapTable o tn3270eIpMapTable 3.2.1. tn3270eIpGroupTable and tn3270eResPoolTable enable implementations to define groupings of both IP Addresses and Resource Pools for mapping IP Addresses to resources. The mapping of a IP Group to a Resource Pool is enabled via tn3270eResPoolIpGroupName. Creating an entry in the tn3270eResPoolTable results in creation of an entry or entries in both the tn3270eResMapTable and tn3270eIpMapTable. Both the tn3270eIpGroupTable and the tn3270eResPoolTable are optional since not every TN3270E Server has the ability to define their IP to Resource mappings in this manner. tn3270eResPoolClientPort exists to enable implementations to restrict a collection of resources to a particular local port. This object is optional since not every implementation provides this type of support. 3.2.2. tn3270eResMapTable and tn3270eIpMapTable The tables: tn3270eResMapTable and tn3270eIpMapTable provide mappings of IP Address(es) to Resource(s) and Resource(s) to IP Address(es). The index objects, tn3270eResMapClientPort and tn3270eIpMapClientPort, as allowed to be zero when these tables are implemented by TN3270E Servers that do provide local port to resource mapping. 3.3. TCP Connection Table Additions The TCP Connection Table is defined by RFC 2012 (Refer to reference 10, TCP-MIB Definitions). Traditionally, the contents of the TCP Connection Table has been implementation dependent. Its formal definition consists of the following objects: o tcpConnState (INTEGER) o tcpConnLocalAddress (IpAddress) o tcpConnLocalPort (INTEGER) o tcpConnRemAddress (IpAddress) o tcpConnRemPort (INTEGER) Expires December 1997 [Page 5] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 and is indexed by: tcpConnLocalAddress, tcpConnLocalPort, tcpConnRemAddress and tcpConnRemPort. The tn3270eTcpConnTableGroup contains the objects defined by the tn3270eTcpConnTable for keeping a list of the current set of TN3270 and TN3270E sessions at a TN3270E Server. The tn3270eTcpConnTable has the same index elements as the tcpConnTable but doesn't AUGMENT it since the relationship is not one-to-one. 4. Definitions TN3270E-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, BITS, Unsigned32, experimental, Integer32, IpAddress, TimeTicks, Counter32 FROM SNMPv2-SMI TEXTUAL-CONVENTION, RowStatus, DisplayString FROM SNMPv2-TC MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF tcpConnLocalAddress, tcpConnLocalPort, tcpConnRemAddress, tcpConnRemPort FROM TCP-MIB ; tn3270eMIB MODULE-IDENTITY LAST-UPDATED "9706200000Z" -- June 20, 1997 ORGANIZATION "TN3270E Working Group" CONTACT-INFO "Kenneth White (kennethw@vnet.ibm.com) IBM Corp." DESCRIPTION "This module defines a portion of the management information base (MIB) for managing TN3270E Servers" -- Need an experimental OID from IANA ::= { experimental 2001 } -- Textual Conventions ResourceType ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "The type of resource defined by a Resource Pool. Refer to tn3270eResPoolTable." SYNTAX INTEGER { other(0), Expires December 1997 [Page 6] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 lu(1), printer(2) } Tn3270Functions ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "This textual convention is intended to reflect the current set of TN3270 and TN3270E functions that can be negiotiated between a server and its client: RFC856 transmitBinary The sender of this command REQUESTS permission to begin transmitting, or confirms that it will now begin transmitting characters which are to be interpreted as 8 bits of binary data by the receiver of the data. RFC820 timeMark The sender of this command REQUESTS that the receiver of this command return a WILL TIMING-MARK in the data stream at the 'appropriate place' ... RFC885 endOfRecord The sender of this command requests permission to begin transmission of the Telnet END-OF-RECORD (EOR) code when transmitting data characters, or the sender of this command confirms it will now begin transmission of EORs with transmitted data characters. RFC1091 terminalType Sender is willing to send terminal type information in a subsequent sub-negotiation. RFC1041 tn3270Regime Sender is willing to send list of supported 3270 Regimes in a subsequent sub-negotiation. RFC1647 scsCtlCodes (Printer sessions only). Allows the use of the SNA Character Stream (SCS) and SCS control codes on the session. SCS is used with LU type 1 SNA sessions. dataStreamCtl (Printer sessions only). Allows the use of the standard 3270 data stream. This corresponds to LU type 3 SNA sessions. responses Provides support for positive and negative response handling. Allows the server to reflect to the client any and Expires December 1997 [Page 7] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 all definite, exception, and no response requests sent by the host application. bindImage Allows the server to send the SNA Bind image and Unbind notification to the client. sysreq Allows the client and server to emulate some (or all, depending on the server) of the functions of the SYSREQ key in an SNA environment." SYNTAX BITS { transmitBinary(0),-- rfc856 timemark(1), -- rfc860 endOfRecord(2), -- rfc885 terminalType(3), -- rfc1091 tn3270Regime(4), -- rfc1041 scsCtlCodes(5), -- rfc1647 dataStreamCtl(6), -- rfc1647 responses(7), -- rfc1647 bindImage(8), -- rfc1647 sysreq(9) -- rfc1647 } DeviceTypes ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "This textual convention defines the list of device types that can be set as defined by RFC 1647." SYNTAX INTEGER { -- terminals unknown(0), ibm3278d2(1), -- (24 row x 80 col display) ibm3278d2E(2), -- (24 row x 80 col display) ibm3278d3(3), -- (32 row x 80 col display) ibm3278d3E(4), -- (32 row x 80 col display) ibm3278d4(5), -- (43 row x 80 col display) ibm3278d4E(6), -- (43 row x 80 col display) ibm3278d5(7), -- (27 row x 132 col display) ibm3278d5E(8), -- (27 row x 132 col display) ibmDynamic(9), -- (no pre-defined display size) ibm3287d1(10) -- printers } -- Top-level structure of the MIB tn3270eNotifications OBJECT IDENTIFIER ::= { tn3270eMIB 0 } tn3270eObjects OBJECT IDENTIFIER ::= { tn3270eMIB 1 } tn3270eConformance OBJECT IDENTIFIER ::= { tn3270eMIB 3 } -- MIB Objects Expires December 1997 [Page 8] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 tn3270eSrvrConfTable OBJECT-TYPE SYNTAX SEQUENCE OF Tn3270eSrvrConfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table defines the configuration elements for TN3270 Servers. The number of entries in this table is expected to vary depending on the location of the table. A particular TN3270 Server is expected to have a single entry. Modeling of the configuration elements as a table enable use of the table by management applications as well as allowing multiple TN3270 Servers to exist at the same host." ::= { tn3270eObjects 1 } tn3270eSrvrConfEntry OBJECT-TYPE SYNTAX Tn3270eSrvrConfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Definition of the configuration elements for a single TN3270 Server." INDEX { tn3270eSrvrConfIpAddr, tn3270eSrvrConfIndex } ::= { tn3270eSrvrConfTable 1 } Tn3270eSrvrConfEntry ::= SEQUENCE { tn3270eSrvrConfIpAddr IpAddress, tn3270eSrvrConfIndex Unsigned32, tn3270eSrvrConfInactivityTimer Unsigned32, tn3270eSrvrConfActivityCheck INTEGER, tn3270eSrvrConfActivityTimeout Unsigned32, tn3270eSrvrConfActivityInterval Unsigned32, tn3270eSrvrConfProtoSupported Tn3270Functions, tn3270eSrvrConfAdminStatus INTEGER, tn3270eSrvrConfOperStatus INTEGER, tn3270eSrvrConfSessionTermState INTEGER, tn3270eSrvrConfSrvrType INTEGER, tn3270eSrvrConfRowStatus RowStatus } tn3270eSrvrConfIpAddr OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "Indicates the local IP Address associated with a TN3270 Server. A value of 0 is allowed when the entry exists at a single TN3270 Server instance host." Expires December 1997 [Page 9] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 ::= { tn3270eSrvrConfEntry 1 } tn3270eSrvrConfIndex OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS not-accessible STATUS current DESCRIPTION "Indicates the instance of a TN3270/TN3270E Server that exists at the IP Host pointed to by tn3270eSrvrConfIpAddr." ::= { tn3270eSrvrConfEntry 2 } tn3270eSrvrConfInactivityTimer OBJECT-TYPE SYNTAX Unsigned32 (0..99999999) UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The inactivity time-out specified in seconds. When a connection has been inactive for the number of seconds specified by this object it is closed. The default of 0 means no inactivity time-out." DEFVAL { 0 } ::= { tn3270eSrvrConfEntry 3 } tn3270eSrvrConfActivityCheck OBJECT-TYPE SYNTAX INTEGER { noCheck(0), timeMark(1), nop(2) } MAX-ACCESS read-create STATUS current DESCRIPTION "This object is intended to enable either timemark or nop processing." DEFVAL { noCheck } ::= { tn3270eSrvrConfEntry 4 } tn3270eSrvrConfActivityTimeout OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The TIMEMARK or NOP processing time-out specified in seconds." DEFVAL { 600 } -- 10 minutes ::= { tn3270eSrvrConfEntry 5 } Expires December 1997 [Page 10] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 tn3270eSrvrConfActivityInterval OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The scan interval to be used by the Telnet Server. TIMEMARK or NOP processing scans the Telnet sessions on the interval provided by this object looking for sessions that have been idle for more than the value provided by tn3270eSrvrConfActivityTimeout." DEFVAL { 120 } -- 2 minutes ::= { tn3270eSrvrConfEntry 6 } tn3270eSrvrConfProtoSupported OBJECT-TYPE SYNTAX Tn3270Functions MAX-ACCESS read-only STATUS current DESCRIPTION "This object indicates the TN3270 functions supported by a TN3270 Server." DEFVAL { { scsCtlCodes, dataStreamCtl, responses, bindImage, sysreq } } ::= { tn3270eSrvrConfEntry 7 } tn3270eSrvrConfAdminStatus OBJECT-TYPE SYNTAX INTEGER { up(1), down(2), stopImmediate(3) } MAX-ACCESS read-create STATUS current DESCRIPTION "The desired state of the Telnet Server. The stopImmediate state is intended to enable Servers to gracefully terminate via down or to terminate immediate without ending its client connections. There is no requirement for support of stopImmediate." ::= { tn3270eSrvrConfEntry 8 } tn3270eSrvrConfOperStatus OBJECT-TYPE SYNTAX INTEGER { up(1), down(2) } MAX-ACCESS read-only STATUS current Expires December 1997 [Page 11] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 DESCRIPTION "The current operational state of the Telnet Server." ::= { tn3270eSrvrConfEntry 9 } tn3270eSrvrConfSessionTermState OBJECT-TYPE SYNTAX INTEGER { terminate(1), luSessionPend(2), queueSession(3) } MAX-ACCESS read-create STATUS current DESCRIPTION "The current state for determining what happens when Telnet connection terminates: terminate(1) => Terminate connection. luSessionPend(2) => Allows the client's session to revert to their Default Application upon termination of their Telnet connection. queueSession(3) => ????" DEFVAL { terminate } ::= { tn3270eSrvrConfEntry 10 } tn3270eSrvrConfSrvrType OBJECT-TYPE SYNTAX INTEGER { unknown(0), host(1), gateway(2) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object indicates the type of TN3270/TN3270E Server. The existence of MIB tables and objects that will be defined by follow-on MIBs may be predicated on whether the TN3270/TN3270E Server is local to the same host as the secondary LU used to attach the IP client into a SNA network." ::= { tn3270eSrvrConfEntry 11 } tn3270eSrvrConfRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object allows entries to be created and deleted in the tn3270eSrvrConfTable. Creating an entry in this table Expires December 1997 [Page 12] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 at a management application informs enable that application to manage the associating TN3270 Server. Deleting an entry removes it from that application's management domain. A server based implementation of this table may chose to not support creation or deletion of its (probably only) entry in this table via this object. An entry in this table is deleted by setting this object to destroy(6)." REFERENCE "RFC 1903, 'Textual Conventions for version 2 of the Simple Network Management Protocol (SNMPv2).'" ::= { tn3270eSrvrConfEntry 12 } tn3270eSrvrPortTable OBJECT-TYPE SYNTAX SEQUENCE OF Tn3270eSrvrPortEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table defines the ports associated with TN3270/ TN3270E Servers." ::= { tn3270eObjects 2 } tn3270eSrvrPortEntry OBJECT-TYPE SYNTAX Tn3270eSrvrPortEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Definition of a single server port assignment." INDEX { tn3270eSrvrConfIpAddr, tn3270eSrvrConfIndex, tn3270eSrvrPort } ::= { tn3270eSrvrPortTable 1 } Tn3270eSrvrPortEntry ::= SEQUENCE { tn3270eSrvrPort Unsigned32, tn3270eSrvrPortRowStatus RowStatus } tn3270eSrvrPort OBJECT-TYPE SYNTAX Unsigned32 (0..65535) MAX-ACCESS not-accessible STATUS current DESCRIPTION "Indicates a port assigned to a server." ::= { tn3270eSrvrPortEntry 1 } tn3270eSrvrPortRowStatus OBJECT-TYPE Expires December 1997 [Page 13] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object allows entries to be created and deleted in the tn3270eSrvrPortTable. An entry in this table is deleted by setting this object to destroy(6)." REFERENCE "RFC 1903, 'Textual Conventions for version 2 of the Simple Network Management Protocol (SNMPv2).'" ::= { tn3270eSrvrPortEntry 2 } tn3270eSrvrStatsTable OBJECT-TYPE SYNTAX SEQUENCE OF Tn3270eSrvrStatsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table defines a set of statistics concerning global TN3270 Server performance." ::= { tn3270eObjects 3 } tn3270eSrvrStatsEntry OBJECT-TYPE SYNTAX Tn3270eSrvrStatsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Collection of a set of statistic objects for a single TN3270 Server." INDEX { tn3270eSrvrConfIpAddr, tn3270eSrvrConfIndex } ::= { tn3270eSrvrStatsTable 1 } Tn3270eSrvrStatsEntry ::= SEQUENCE { tn3270eSrvrStatsUpTime TimeTicks, tn3270eSrvrStatsMaxLus Integer32, tn3270eSrvrStatsLusInUse Integer32, tn3270eSrvrStatsSpareLus Integer32, tn3270eSrvrStatsMaxPtrs Integer32, tn3270eSrvrStatsPtrsInUse Integer32, tn3270eSrvrStatsSparePtrs Integer32, tn3270eSrvrStatsConnectsIn Counter32, tn3270eSrvrStatsConnRejects Counter32, tn3270eSrvrStatsDisconnects Counter32 } tn3270eSrvrStatsUpTime OBJECT-TYPE SYNTAX TimeTicks Expires December 1997 [Page 14] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the amount of time that a particular TN3270 has be active. This is total time since the server was started and is not reset on tn3270eSrvrConfOperStatus." ::= { tn3270eSrvrStatsEntry 1 } tn3270eSrvrStatsMaxLus OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the maximum number of LUs for use by a TN3270 Server." ::= { tn3270eSrvrStatsEntry 2 } tn3270eSrvrStatsLusInUse OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the current number of LUs in use by a TN3270 Server." ::= { tn3270eSrvrStatsEntry 3 } tn3270eSrvrStatsSpareLus OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the number of free LUs for a particular TN3270 Server." ::= { tn3270eSrvrStatsEntry 4 } tn3270eSrvrStatsMaxPtrs OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the maximum number of Printer Resources for use by a TN3270 Server." ::= { tn3270eSrvrStatsEntry 5 } tn3270eSrvrStatsPtrsInUse OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current Expires December 1997 [Page 15] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 DESCRIPTION "Indicates the current number of Printer Resources in use by a TN3270 Server." ::= { tn3270eSrvrStatsEntry 6 } tn3270eSrvrStatsSparePtrs OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the number of free Printer Resources for a particular TN3270 Server." ::= { tn3270eSrvrStatsEntry 7 } tn3270eSrvrStatsConnectsIn OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the number of client connections received by a TN3270 Server." ::= { tn3270eSrvrStatsEntry 8 } tn3270eSrvrStatsConnRejects OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the number of client connections rejected during connection setup." ::= { tn3270eSrvrStatsEntry 9 } tn3270eSrvrStatsDisconnects OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the number of client connections disconnected by a TN3270 Server." ::= { tn3270eSrvrStatsEntry 10 } tn3270eIpGroupTable OBJECT-TYPE SYNTAX SEQUENCE OF Tn3270eIpGroupEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table defines IP Address groupings for use by the Telnet Server." Expires December 1997 [Page 16] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 ::= { tn3270eObjects 4 } tn3270eIpGroupEntry OBJECT-TYPE SYNTAX Tn3270eIpGroupEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Definition of a single IP Address entry. All entries with the same 1st index, tn3270eIpGroupName are considered to be in the same IP Group." INDEX { tn3270eSrvrConfIpAddr, tn3270eSrvrConfIndex, tn3270eIpGroupName, tn3270eIpGroupIpAddress } ::= { tn3270eIpGroupTable 1 } Tn3270eIpGroupEntry ::= SEQUENCE { tn3270eIpGroupName DisplayString, tn3270eIpGroupIpAddress IpAddress, tn3270eIpGroupSubnetMask IpAddress, tn3270eIpGroupRowStatus RowStatus } tn3270eIpGroupName OBJECT-TYPE SYNTAX DisplayString (SIZE(1..8)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The name of a IP Group." ::= { tn3270eIpGroupEntry 1 } tn3270eIpGroupIpAddress OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP Address of a member of a IP Group." ::= { tn3270eIpGroupEntry 2 } tn3270eIpGroupSubnetMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-create STATUS current DESCRIPTION "The corresponding subnet mask associated with tn3270eIpGroupIpAddress. A single IP Address is represented by having this object contain the value of 255.255.255.255." ::= { tn3270eIpGroupEntry 3 } tn3270eIpGroupRowStatus OBJECT-TYPE Expires December 1997 [Page 17] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object allows entries to be created and deleted in the tn3270eIpGroupTable. An entry in this table is deleted by setting this object to destroy(6)." REFERENCE "RFC 1903, 'Textual Conventions for version 2 of the Simple Network Management Protocol (SNMPv2).'" ::= { tn3270eIpGroupEntry 4 } tn3270eResPoolTable OBJECT-TYPE SYNTAX SEQUENCE OF Tn3270eResPoolEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table defines Resource groupings and using the term pool as defined by RFC 1647." ::= { tn3270eObjects 5 } tn3270eResPoolEntry OBJECT-TYPE SYNTAX Tn3270eResPoolEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Definition of a single Resource Pool member. All entries with the same 1st index, tn3270eResPoolName are considered to be in the same Pool." INDEX { tn3270eSrvrConfIpAddr, tn3270eSrvrConfIndex, tn3270eResPoolName, tn3270eResPoolElementName } ::= { tn3270eResPoolTable 1 } Tn3270eResPoolEntry ::= SEQUENCE { tn3270eResPoolName DisplayString, tn3270eResPoolElementName DisplayString, tn3270eResPoolIpGroupName DisplayString, tn3270eResPoolElementType ResourceType, tn3270eResPoolClientPort Unsigned32, tn3270eResPoolRowStatus RowStatus } tn3270eResPoolName OBJECT-TYPE SYNTAX DisplayString (SIZE(1..255)) MAX-ACCESS not-accessible STATUS current DESCRIPTION Expires December 1997 [Page 18] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 "The name of a Resource Pool.." ::= { tn3270eResPoolEntry 1 } tn3270eResPoolElementName OBJECT-TYPE SYNTAX DisplayString (SIZE(1..8)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The Name of a member of a Resource Pool." ::= { tn3270eResPoolEntry 2 } tn3270eResPoolIpGroupName OBJECT-TYPE SYNTAX DisplayString (SIZE(1..8)) MAX-ACCESS read-create STATUS current DESCRIPTION "The name of a IP Group to map a Resource Element to." ::= { tn3270eResPoolEntry 3 } tn3270eResPoolElementType OBJECT-TYPE SYNTAX ResourceType MAX-ACCESS read-create STATUS current DESCRIPTION "The type of the entity in a Resource Pool." ::= { tn3270eResPoolEntry 4 } tn3270eResPoolClientPort OBJECT-TYPE SYNTAX Unsigned32 (0..65535) MAX-ACCESS read-create STATUS current DESCRIPTION "If specified this a pool to a specific client port." ::= { tn3270eResPoolEntry 5 } tn3270eResPoolRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object allows entries to be created and deleted in the tn3270eResPoolTable. An entry in this table is deleted by setting this object to destroy(6)." REFERENCE "RFC 1903, 'Textual Conventions for version 2 of the Simple Expires December 1997 [Page 19] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 Network Management Protocol (SNMPv2).'" ::= { tn3270eResPoolEntry 6 } tn3270eResMapTable OBJECT-TYPE SYNTAX SEQUENCE OF Tn3270eResMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table defines Resource Element to IP Address mappings." ::= { tn3270eObjects 6 } tn3270eResMapEntry OBJECT-TYPE SYNTAX Tn3270eResMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Definition of the mapping of a Resource Element to a IP Address." INDEX { tn3270eSrvrConfIpAddr, tn3270eSrvrConfIndex, tn3270eResMapClientPort, tn3270eResMapElementName } ::= { tn3270eResMapTable 1 } Tn3270eResMapEntry ::= SEQUENCE { tn3270eResMapClientPort Unsigned32, tn3270eResMapElementName DisplayString, tn3270eResMapIpAddress IpAddress, tn3270eResMapSubnetMask IpAddress, tn3270eResMapElementType ResourceType, tn3270eResMapRowStatus RowStatus } tn3270eResMapClientPort OBJECT-TYPE SYNTAX Unsigned32 (0..65535) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The port that this assignment is restricted to. Note that a value of 0 for this object implies that the assignment is global to all client ports." ::= { tn3270eResMapEntry 1 } tn3270eResMapElementName OBJECT-TYPE SYNTAX DisplayString (SIZE(1..8)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The Name of a resource element." ::= { tn3270eResMapEntry 2 } Expires December 1997 [Page 20] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 tn3270eResMapIpAddress OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-create STATUS current DESCRIPTION "A client IP Address or subnet if tn3270eResMapSubnetMask is set to 255.255.255.255." ::= { tn3270eResMapEntry 3 } tn3270eResMapSubnetMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-create STATUS current DESCRIPTION "The corresponding subnet mask associated with tn3270eResMapIpAddress. A single IP Address is represented by having this object contain the value of 255.255.255.255." ::= { tn3270eResMapEntry 4 } tn3270eResMapElementType OBJECT-TYPE SYNTAX ResourceType MAX-ACCESS read-create STATUS current DESCRIPTION "The type of the entity in a Resource Pool." ::= { tn3270eResMapEntry 5 } tn3270eResMapRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object allows entries to be created and deleted in the tn3270eResMapTable. Entries in this table should occur automatically when an entry is created in the tn3270eResPoolTable. Deleting an entry in the tn3270eResPoolTable should remove all corresponding entries in this table. The tn3270eResPoolTable is optional. This implies that entries can be added directly to this table." REFERENCE "RFC 1903, 'Textual Conventions for version 2 of the Simple Network Management Protocol (SNMPv2).'" ::= { tn3270eResMapEntry 6 } Expires December 1997 [Page 21] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 tn3270eIpMapTable OBJECT-TYPE SYNTAX SEQUENCE OF Tn3270eIpMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table defines IP Address to Resource Element mappings." ::= { tn3270eObjects 7 } tn3270eIpMapEntry OBJECT-TYPE SYNTAX Tn3270eIpMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Definition of the mapping of a IP Address or Group to a Resource Element." INDEX { tn3270eSrvrConfIpAddr, tn3270eSrvrConfIndex, tn3270eIpMapIpAddress, tn3270eIpMapSubnetMask, tn3270eIpMapClientPort } ::= { tn3270eIpMapTable 1 } Tn3270eIpMapEntry ::= SEQUENCE { tn3270eIpMapIpAddress IpAddress, tn3270eIpMapSubnetMask IpAddress, tn3270eIpMapClientPort Unsigned32, tn3270eIpMapResElementName DisplayString, tn3270eIpMapElementType ResourceType, tn3270eIpMapRowStatus RowStatus } tn3270eIpMapIpAddress OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP Address of a member of a IP Group." ::= { tn3270eIpMapEntry 1 } tn3270eIpMapSubnetMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The corresponding subnet mask associated with tn3270eIpGroupIpAddress. A single IP Address is represented by having this object contain the value of 255.255.255.255." ::= { tn3270eIpMapEntry 2 } tn3270eIpMapClientPort OBJECT-TYPE Expires December 1997 [Page 22] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 SYNTAX Unsigned32 (0..65535) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The port that this assignment is restricted to. Note that a value of 0 for this object implies that the assignment is global to all client ports." ::= { tn3270eIpMapEntry 3 } tn3270eIpMapResElementName OBJECT-TYPE SYNTAX DisplayString (SIZE(0..8)) MAX-ACCESS read-create STATUS current DESCRIPTION "The Resource Element mapping to IP Address(es)." ::= { tn3270eIpMapEntry 4 } tn3270eIpMapElementType OBJECT-TYPE SYNTAX ResourceType MAX-ACCESS read-create STATUS current DESCRIPTION "The type resource element." ::= { tn3270eIpMapEntry 5 } tn3270eIpMapRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object allows entries to be created and deleted in the tn3270eIpMapMapTable. Entries in this table should occur automatically when an entry is created in the tn3270eResPoolTable. Deleting an entry in the tn3270eResPoolTable should remove all corresponding entries in this table. The tn3270eResPoolTable is optional. This implies that entries can be added directly to this table." REFERENCE "RFC 1903, 'Textual Conventions for version 2 of the Simple Network Management Protocol (SNMPv2).'" ::= { tn3270eIpMapEntry 6 } -- Define the set of objects to add to the Tcp Connection Table tn3270eTcpConnTable OBJECT-TYPE Expires December 1997 [Page 23] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 SYNTAX SEQUENCE OF Tn3270eTcpConnEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Extends tcpConnTable to support TN3270 and TN3270E performance monitoring." ::= { tn3270eObjects 8 } tn3270eTcpConnEntry OBJECT-TYPE SYNTAX Tn3270eTcpConnEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Provides in formation about a single TN3270/TN3270E session." INDEX { tcpConnLocalAddress, tcpConnLocalPort, tcpConnRemAddress, tcpConnRemPort } ::= { tn3270eTcpConnTable 1 } Tn3270eTcpConnEntry ::= SEQUENCE { tn3270eTcpConnLastActivity TimeTicks, tn3270eTcpConnBytesIn Counter32, tn3270eTcpConnBytesOut Counter32, tn3270eTcpConnTargetAppl DisplayString, tn3270eTcpConnResourceName DisplayString, tn3270eTcpConnResourceType ResourceType, tn3270eTcpConnClientUserId DisplayString, tn3270eTcpConnDeviceType DeviceTypes, tn3270eTcpConnProto Tn3270Functions } tn3270eTcpConnLastActivity OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The number of 100ths of seconds since this entry was last used." DEFVAL { 0 } ::= { tn3270eTcpConnEntry 1 } tn3270eTcpConnBytesIn OBJECT-TYPE SYNTAX Counter32 UNITS "octets" MAX-ACCESS read-only STATUS current Expires December 1997 [Page 24] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 DESCRIPTION "The number of bytes received by the Server from TCP for this connection." ::= { tn3270eTcpConnEntry 2 } tn3270eTcpConnBytesOut OBJECT-TYPE SYNTAX Counter32 UNITS "octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes sent to TCP for this connection." ::= { tn3270eTcpConnEntry 3 } tn3270eTcpConnTargetAppl OBJECT-TYPE SYNTAX DisplayString (SIZE(0..8)) MAX-ACCESS read-only STATUS current DESCRIPTION "When the corresponding TCP connection is for a 3172 Telnet session then this object contains the Target VTAM Application name. For gateway server implementations this object will not be known and should be returned as a null OCTET STRING." ::= { tn3270eTcpConnEntry 4 } tn3270eTcpConnResourceName OBJECT-TYPE SYNTAX DisplayString (SIZE(0..8)) MAX-ACCESS read-only STATUS current DESCRIPTION "LU/Print secondary name for connecting a IP Client into a SNA network." ::= { tn3270eTcpConnEntry 5 } tn3270eTcpConnResourceType OBJECT-TYPE SYNTAX ResourceType MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the type of resource identified by tn3270eTcpConnResourceName." ::= { tn3270eTcpConnEntry 6 } tn3270eTcpConnClientUserId OBJECT-TYPE SYNTAX DisplayString (SIZE(0..8)) MAX-ACCESS read-only STATUS current Expires December 1997 [Page 25] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 DESCRIPTION "When the corresponding TCP connection is for a 3172 Telnet session then this object contains the Client's userid." ::= { tn3270eTcpConnEntry 7 } tn3270eTcpConnDeviceType OBJECT-TYPE SYNTAX DeviceTypes MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the device type if negiotiated with client." ::= { tn3270eTcpConnEntry 8 } tn3270eTcpConnProto OBJECT-TYPE SYNTAX Tn3270Functions MAX-ACCESS read-only STATUS current DESCRIPTION "This flag will indicates which of the TN3270 and TN3270E functions that are supported by the Server was negioted with a client. Refer to tn3270eSrvrConfProtoSupported." ::= { tn3270eTcpConnEntry 9 } -- Conformance Definitions tn3270eGroups OBJECT IDENTIFIER ::= { tn3270eConformance 1 } tn3270eCompliances OBJECT IDENTIFIER ::= { tn3270eConformance 2 } -- compliance statements tn3270eCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for agents that support the TN3270 MIB." MODULE -- this module MANDATORY-GROUPS { tn3270eBasicGroup, tn3270eSessionGroup } GROUP tn3270ePoolGroup DESCRIPTION "This group is optional." OBJECT tn3270eSrvrConfActivityCheck MIN-ACCESS read-only DESCRIPTION "The agent is not required to support a set to this object if the associating TN3270 Server doesn't support either TIMEMARK or NOP processing. In Expires December 1997 [Page 26] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 this case an agent should return noCheck on retrieval." OBJECT tn3270eSrvrConfActivityTimeout MIN-ACCESS read-only DESCRIPTION "The agent is not required to support a set to this object if the functions enabled by tn3270eSrvrConfActivityCheck are not supported. An agent in this case should return a value of 0." OBJECT tn3270eSrvrConfActivityInterval MIN-ACCESS read-only DESCRIPTION "The agent is not required to support a set to this object if the functions enabled by tn3270eSrvrConfActivityCheck are not supported. An agent in this case should return a value of 0." OBJECT tn3270eTcpConnTargetAppl DESCRIPTION "A TN3270 Server is not required to support this object if it doesn't provide for Target Application mapping. In this case either a null OCTET STRING can be returned or noSuchObject." OBJECT tn3270eTcpConnClientUserId DESCRIPTION "A TN3270 Server is not required to support this object if it doesn't provide for Target Application mapping. In this case either a null OCTET STRING can be returned or noSuchObject." ::= { tn3270eCompliances 1 } -- units of conformance tn3270eBasicGroup OBJECT-GROUP OBJECTS { tn3270eSrvrConfInactivityTimer, tn3270eSrvrConfActivityCheck, tn3270eSrvrConfActivityTimeout, tn3270eSrvrConfActivityInterval, tn3270eSrvrConfProtoSupported, tn3270eSrvrConfAdminStatus, tn3270eSrvrConfOperStatus, tn3270eSrvrConfSessionTermState, tn3270eSrvrConfSrvrType, tn3270eSrvrConfRowStatus, tn3270eSrvrPortRowStatus, tn3270eSrvrStatsUpTime, tn3270eSrvrStatsMaxLus, tn3270eSrvrStatsLusInUse, Expires December 1997 [Page 27] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 tn3270eSrvrStatsSpareLus, tn3270eSrvrStatsMaxPtrs, tn3270eSrvrStatsPtrsInUse, tn3270eSrvrStatsSparePtrs, tn3270eSrvrStatsConnectsIn, tn3270eSrvrStatsConnRejects, tn3270eSrvrStatsDisconnects, tn3270eResMapIpAddress, tn3270eResMapSubnetMask, tn3270eResMapElementType, tn3270eResMapRowStatus, tn3270eIpMapResElementName, tn3270eIpMapElementType, tn3270eIpMapRowStatus } STATUS current DESCRIPTION "This group is mandatory for all hosts supporting the TN3270E-MIB." ::= { tn3270eGroups 1 } tn3270ePoolGroup OBJECT-GROUP OBJECTS { tn3270eIpGroupSubnetMask, tn3270eIpGroupRowStatus, tn3270eResPoolElementType, tn3270eResPoolIpGroupName, tn3270eResPoolClientPort, tn3270eResPoolRowStatus } STATUS current DESCRIPTION "This group is optional and allows a server to configure a collection of IP Address and Resource Pools and their mappings." ::= { tn3270eGroups 2 } tn3270eSessionGroup OBJECT-GROUP OBJECTS { tn3270eTcpConnLastActivity, tn3270eTcpConnBytesIn, tn3270eTcpConnBytesOut, tn3270eTcpConnTargetAppl, tn3270eTcpConnResourceName, tn3270eTcpConnResourceType, tn3270eTcpConnClientUserId, tn3270eTcpConnDeviceType, tn3270eTcpConnProto Expires December 1997 [Page 28] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 } STATUS current DESCRIPTION "This group is mandatory for all hosts supporting the TN3270E-MIB." ::= { tn3270eGroups 3 } END 5. Security Considerations Certain management information defined in this MIB may be considered sensitive in some network environments. Therefore, authentication of received SNMP requests and controlled access to management information should be employed in such environments. The method for this authentication is a function of the SNMP Administrative Framework, and has not been expanded by this MIB. Several objects in this MIB allow write access or provide for remote creation. Allowing this support in a non-secure environment can have a negative effect on network operations. It is recommended that implementers seriously consider whether set operations should be allowed without providing, at a minimum, authentication of request origin. It it recommended that without such support that the following objects be implemented as read-only: o tn3270eSrvrConfInactivityTimer o tn3270eSrvrConfActivityCheck o tn3270eSrvrConfActivityTimeout o tn3270eSrvrConfActivityInterval o tn3270eSrvrConfAdminStatus o tn3270eSrvrConfSessionTermState o tn3270eIpGroupSubnetMask o tn3270eResPoolIpGroupName o tn3270eResPoolElementType o tn3270eResPoolClientPort o tn3270eResMapIpAddress o tn3270eResMapSubnetMask o tn3270eResMapElementType o tn3270eIpMapResElementName o tn3270eIpMapElementType The following objects should either be implemented as read-only or not implemented when security is an issue as previously discussed: o tn3270eSrvrConfRowStatus o tn3270eSrvrPortRowStatus Expires December 1997 [Page 29] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 o tn3270eIpGroupRowStatus o tn3270eResPoolRowStatus o tn3270eResMapRowStatus o tn3270eIpMapRowStatus 6. Acknowledgments This document is a product of the TN3270E Working Group. 7. References [1] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and Waldbusser S., "Structure of Management Information for version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1902, January 1996. [2] Network Working Group, Postel, J., and Reynolds, J., "Telnet Protocol Specification", RFC 854, May 1983. [3] Network Working Group, Postel, J., and Reynolds, J., "Telnet Timing Mark Option", RFC 860, May 1983. [4] Network Working Group and Rekhter J., "Telnet 3270 Regime Option", RFC 1041, January 1988. [5] McCloghrie, K., and M. Rose, Editors, "Management Information Base for Network Management of TCP/IP-based internets: MIB-II", STD 17, RFC 1213, Hughes LAN Systems, Performance Systems International, March 1991. [6] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Textual Conventions for version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1903, January 1996. [7] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Protocol Operations for version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1905, January 1996. Expires December 1997 [Page 30] White TN3270E Management Information Base (TN3270E-MIB)26 June 1997 [8] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Conformance Statements for version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1904, January 1996. [9] Case, J., M. Fedor, M. Schoffstall, J. Davin, "Simple Network Management Protocol", RFC 1157, SNMP Research, Performance Systems International, MIT Laboratory for Computer Science, May 1990. [10] IETF SNMPv2 Working Group and McCloghrie, K., "TCP-MIB Definitions", November 1994. 8. Authors' Address Kenneth D. White Dept. G80/Bldg 503 IBM Corporation Research Triangle Park, NC 27709, USA E-mail: kennethw@vnet.ibm.com Expires December 1997 [Page 31]