Network Working Group Ned Freed, Innosoft Internet Draft Steve Kille, ISODE Consortium Obsoletes: 1566, 2249 <draft-ietf-madman-email-mib-01.txt> Mail Monitoring MIB February 1999 Status of this Memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC 2026. 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 and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet- Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. Copyright Notice Copyright (C) The Internet Society (1999). All Rights Reserved. 1. Introduction This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. Specifically, this memo extends the basic Network Services Monitoring MIB defined in RFC XXXX [16] to allow monitoring of Message Transfer Agents (MTAs). It may also be used to monitor MTA components within gateways. Internet Draft Mail Monitoring MIB February 1999 2. Table of Contents 1 Introduction .................................................... 1 2 Table of Contents ............................................... 2 3 The SNMP Network Management Framework ........................... 2 3.1 Object Definitions ............................................ 3 4 Message Flow Model .............................................. 3 5 MTA Objects ..................................................... 4 6 Definitions ..................................................... 5 7 Changes made since RFC 2249 ..................................... 34 8 Acknowledgements ................................................ 34 9 References ...................................................... 34 10 Security Considerations ........................................ 37 11 Author and Chair Addresses ..................................... 37 12 Full Copyright Statement ....................................... 38 3. The SNMP Network Management Framework The SNMP Management Framework presently consists of five major components: o An overall architecture, described in RFC 2271 [1]. o Mechanisms for describing and naming objects and events for the purpose of management. The first version of this Structure of Management Information (SMI) is called SMIv1 and described in RFC 1155 [2], RFC 1212 [3] and RFC 1215 [4]. The second version, called SMIv2, is described in RFC 1902 [5], RFC 1903 [6] and RFC 1904 [7]. o Message protocols for transferring management information. The first version of the SNMP message protocol is called SNMPv1 and described in RFC 1157 [8]. A second version of the SNMP message protocol, which is not an Internet standards track protocol, is called SNMPv2c and described in RFC 1901 [9] and RFC 1906 [10]. The third version of the message protocol is called SNMPv3 and described in RFC 1906 [10], RFC 2272 [11] and RFC 2274 [12]. o Protocol operations for accessing management information. The first set of protocol operations and associated PDU formats is described in RFC 1157 [8]. A second set of protocol operations and associated PDU formats is described in RFC 1905 [13]. Expires August 1999 [Page 2]
Internet Draft Mail Monitoring MIB February 1999 o A set of fundamental applications described in RFC 2273 [14] and the view-based access control mechanism described in RFC 2275 [15]. Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the mechanisms defined in the SMI. This memo specifies a MIB module that is compliant to the SMIv2. A MIB conforming to the SMIv1 can be produced through the appropriate translations. The resulting translated MIB must be semantically equivalent, except where objects or events are omitted because no translation is possible (use of Counter64). Some machine readable information in SMIv2 will be converted into textual descriptions in SMIv1 during the translation process. However, this loss of machine readable information is not considered to change the semantics of the MIB. 3.1. 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 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. 4. Message Flow Model A general model of message flow inside an MTA has to be presented before a MIB can be described. Generally speaking, message flow is modelled as occuring in four steps: (1) Messages are received by the MTA from User Agents, Message Stores, other MTAs, and gateways. (2) The "next hop" for the each message is determined. This is simply the destination the message is to be transmitted to; it may or may not be the final destination of the message. Multiple "next hops" may exist for a single message (as a result of either having multiple recipients or distribution list expansion); this Expires August 1999 [Page 3]
Internet Draft Mail Monitoring MIB February 1999 may make it necessary to duplicate messages. (3) If necessary messages are converted into the format that's appropriate for the next hop. Conversion operations may be successful or unsuccessful. (4) Messages are transmitted to the appropriate destination, which may be a User Agent, Message Store, another MTA, or gateway. Storage of messages in the MTA occurs at some point during this process. However, it is important to note that storage may occur at different and possibly even multiple points during this process. For example, some MTAs expand messages into multiple copies as they are received. In this case (1), (2), and (3) may all occur prior to storage. Other MTAs store messages precisely as they are received and perform all expansions and conversions during retransmission processing. So here only (1) occurs prior to storage. This leads to situations where, in general, a measurement of messages received may not equal a measurement of messages in store, or a measurement of messages stored may not equal a measurement of messages retransmitted, or both. 5. MTA Objects If there are one or more MTAs on the host, the following MIB may be used to monitor them. Any number of the MTAs on a single host or group of hosts may be monitored. Each MTA is dealt with as a separate network service and has its own applTable entry in the Network Services Monitoring MIB. The MIB described in this document covers only the portion which is specific to the monitoring of MTAs. The network service related part of the MIB is covered in RFC XXXX [8]. This MIB defines four tables. The first of these contains per-MTA information that isn't specific to any particular part of MTA. The second breaks each MTA down into a collection of separate components called groups. Groups are described in detail in the comments embedded in the MIB below. The third table provides a means of correlating associations tracked by the network services MIB with specific groups within different MTAs. Finally, the fourth table provides a means of tracking any errors encountered during the operation of the MTA. The first two tables must be implemented to conform with this MIB; the last two are optional. Expires August 1999 [Page 4]
Internet Draft Mail Monitoring MIB February 1999 6. Definitions MTA-MIB DEFINITIONS ::= BEGIN IMPORTS OBJECT-TYPE, Counter32, Gauge32, MODULE-IDENTITY, mib-2 FROM SNMPv2-SMI DisplayString, TimeInterval FROM SNMPv2-TC MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF applIndex, URLString FROM NETWORK-SERVICES-MIB; mta MODULE-IDENTITY LAST-UPDATED "9811130000Z" ORGANIZATION "IETF Mail and Directory Management Working Group" CONTACT-INFO " Ned Freed Postal: Innosoft International, Inc. 1050 Lakes Drive West Covina, CA 91790 US Tel: +1 626 919 3600 Fax: +1 626 919 3614 E-Mail: ned.freed@innosoft.com" DESCRIPTION "The MIB module describing Message Transfer Agents (MTAs)" REVISION "9811130000Z" DESCRIPTION "This revision, published in RFC YYYY, fixes a number of technical problems found in previous versions. No changes have been made to the objects this MIB defines." REVISION "9708170000Z" DESCRIPTION "This revision, published in RFC 2249, adds the mtaGroupDescription and mtaGroupURL fields, conversion operation counters, a group hierarchy description mechanism, counters for specific errors, oldest message IDs, per-MTA and per-group loop counters, and a new table for tracking any errors an MTA encounters." REVISION "9311280000Z" Expires August 1999 [Page 5]
Internet Draft Mail Monitoring MIB February 1999 DESCRIPTION "The original version of this MIB was published in RFC 1566" ::= {mib-2 28} mtaTable OBJECT-TYPE SYNTAX SEQUENCE OF MtaEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The table holding information specific to an MTA." ::= {mta 1} mtaStatusCode OBJECT-TYPE SYNTAX INTEGER (4000000..5999999) MAX-ACCESS not-accessible STATUS current DESCRIPTION "An index capable of representing an Enhanced Mail System Status Code. Enhanced Mail System Status Codes are defined in RFC 1893. These codes have the form class.subject.detail Here 'class' is either 2, 4, or 5 and both 'subject' and 'detail' are integers in the range 0..999. Given a status code the corresponding index value is defined to be ((class * 1000) + subject) * 1000 + detail. Both SMTP error response codes and X.400 reason and diagnostic codes can be mapped into these codes, resulting in a namespace capable of describing most error conditions a mail system encounters in a generic yet detailed way." ::= {mta 6} mtaEntry OBJECT-TYPE SYNTAX MtaEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The entry associated with each MTA." INDEX {applIndex} ::= {mtaTable 1} Expires August 1999 [Page 6]
Internet Draft Mail Monitoring MIB February 1999 MtaEntry ::= SEQUENCE { mtaReceivedMessages Counter32, mtaStoredMessages Gauge32, mtaTransmittedMessages Counter32, mtaReceivedVolume Counter32, mtaStoredVolume Gauge32, mtaTransmittedVolume Counter32, mtaReceivedRecipients Counter32, mtaStoredRecipients Gauge32, mtaTransmittedRecipients Counter32, mtaSuccessfulConvertedMessages Counter32, mtaFailedConvertedMessages Counter32, mtaLoopsDetected Counter32 } mtaReceivedMessages OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of messages received since MTA initialization. This includes messages transmitted to this MTA from other MTAs as well as messages that have been submitted to the MTA directly by end-users or applications." ::= {mtaEntry 1} Expires August 1999 [Page 7]
Internet Draft Mail Monitoring MIB February 1999 mtaStoredMessages OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of messages currently stored in the MTA. This includes messages that are awaiting transmission to some other MTA or are waiting for delivery to an end-user or application." ::= {mtaEntry 2} mtaTransmittedMessages OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of messages transmitted since MTA initialization. This includes messages that were transmitted to some other MTA or are waiting for delivery to an end-user or application." ::= {mtaEntry 3} mtaReceivedVolume OBJECT-TYPE SYNTAX Counter32 UNITS "K-octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total volume of messages received since MTA initialization, measured in kilo-octets. This volume should include all transferred data that is logically above the mail transport protocol level. For example, an SMTP-based MTA should use the number of kilo-octets in the message header and body, while an X.400-based MTA should use the number of kilo-octets of P2 data. This includes messages transmitted to this MTA from other MTAs as well as messages that have been submitted to the MTA directly by end-users or applications." ::= {mtaEntry 4} Expires August 1999 [Page 8]
Internet Draft Mail Monitoring MIB February 1999 mtaStoredVolume OBJECT-TYPE SYNTAX Gauge32 UNITS "K-octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total volume of messages currently stored in the MTA, measured in kilo-octets. This volume should include all stored data that is logically above the mail transport protocol level. For example, an SMTP-based MTA should use the number of kilo-octets in the message header and body, while an X.400-based MTA would use the number of kilo-octets of P2 data. This includes messages that are awaiting transmission to some other MTA or are waiting for delivery to an end-user or application." ::= {mtaEntry 5} mtaTransmittedVolume OBJECT-TYPE SYNTAX Counter32 UNITS "K-octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total volume of messages transmitted since MTA initialization, measured in kilo-octets. This volume should include all transferred data that is logically above the mail transport protocol level. For example, an SMTP-based MTA should use the number of kilo-octets in the message header and body, while an X.400-based MTA should use the number of kilo-octets of P2 data. This includes messages that were transmitted to some other MTA or are waiting for delivery to an end-user or application." ::= {mtaEntry 6} Expires August 1999 [Page 9]
Internet Draft Mail Monitoring MIB February 1999 mtaReceivedRecipients OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of recipients specified in all messages received since MTA initialization. Recipients this MTA has no responsibility for, i.e. inactive envelope recipients or ones referred to in message headers, should not be counted even if information about such recipients is available. This includes messages transmitted to this MTA from other MTAs as well as messages that have been submitted to the MTA directly by end-users or applications." ::= {mtaEntry 7} mtaStoredRecipients OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of recipients specified in all messages currently stored in the MTA. Recipients this MTA has no responsibility for, i.e. inactive envelope recipients or ones referred to in message headers, should not be counted. This includes messages that are awaiting transmission to some other MTA or are waiting for delivery to an end-user or application." ::= {mtaEntry 8} mtaTransmittedRecipients OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of recipients specified in all messages transmitted since MTA initialization. Recipients this MTA had no responsibility for, i.e. inactive envelope recipients or ones referred to in message headers, should not be counted. This includes messages that were transmitted to some other MTA or are waiting for delivery to an end-user or application." ::= {mtaEntry 9} Expires August 1999 [Page 10]
Internet Draft Mail Monitoring MIB February 1999 mtaSuccessfulConvertedMessages OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of messages that have been successfully converted from one form to another since MTA initialization." ::= {mtaEntry 10} mtaFailedConvertedMessages OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of messages for which an unsuccessful attempt was made to convert them from one form to another since MTA initialization." ::= {mtaEntry 11} mtaLoopsDetected OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "A message loop is defined as a situation where the MTA decides that a given message will never be delivered to one or more recipients and instead will continue to loop endlessly through one or more MTAs. This variable counts the number of times the MTA has detected such a situation since MTA initialization. Note that the mechanism MTAs use to detect loops (e.g., trace field counting, count of references to this MTA in a trace field, examination of DNS or other directory information, etc.), the level at which loops are detected (e.g., per message, per recipient, per directory entry, etc.), and the handling of a loop once it is detected (e.g., looping messages are held, looping messages are bounced or sent to the postmaster, messages that the MTA knows will loop won't be accepted, etc.) vary widely from one MTA to the next and cannot be inferred from this variable." ::= {mtaEntry 12} Expires August 1999 [Page 11]
Internet Draft Mail Monitoring MIB February 1999 -- MTAs typically group inbound reception, queue storage, and -- outbound transmission in some way, rather than accounting for -- such operations only across the MTA as a whole. In the most -- extreme case separate information will be maintained for each -- different entity that receives messages and for each entity -- the MTA stores messages for and delivers messages to. Other -- MTAs may elect to treat all reception equally, all queue -- storage equally, all deliveries equally, or some combination -- of this. Overlapped groupings are also possible, where an MTA -- decomposes its traffic in different ways for different -- purposes. -- In any case, a grouping abstraction is an extremely useful for -- breaking down the activities of an MTA. For purposes of -- labelling this will be called a "group" in this MIB. -- Each group contains all the variables needed to monitor all -- aspects of an MTA's operation. However, the fact that all -- groups contain all possible variables does not imply that all -- groups must use all possible variables. For example, a single -- group might be used to monitor only one kind of event (inbound -- processing, outbound processing, or storage). In this sort of -- configuration all unused counters would be inaccessible; e.g., -- returning either a noSuchName error (for an SNMPv1 get), or a -- noSuchInstance exception (for an SNMPv2 get). -- Groups can be created at any time after MTA initialization. Once -- a group is created it should not be deleted or its mtaGroupIndex -- changed unless the MTA is reinitialized. -- Groups are not necessarily mutually exclusive. A given event may -- be recorded by more than one group, a message may be seen as -- stored by more than one group, and so on. Groups should be all -- inclusive, however: if groups are implemented all aspects of an -- MTA's operation should be registered in at least one group. -- This freedom lets implementors use different sets of groups to -- provide differents "views" of an MTA. -- The possibility of overlap between groups means that summing -- variables across groups may not produce values equal to those in -- the mtaTable. mtaTable should always provide accurate information -- about the MTA as a whole. Expires August 1999 [Page 12]
Internet Draft Mail Monitoring MIB February 1999 -- The term "channel" is often used in MTA implementations; channels -- are usually, but not always, equivalent to a group. However, -- this MIB does not use the term "channel" because there is no -- requirement that an MTA supporting this MIB has to map its -- "channel" abstraction one-to-one onto the MIB's group abstration. -- An MTA may create a group or group of groups at any time. Once -- created, however, an MTA cannot delete an entry for a group from -- the group table. Deletation is only allowed when the MTA is -- reinitialized, and is not required even then. This restriction -- is imposed so that monitoring agents can rely on group -- assignments being consistent across multiple query operations. -- Groups may be laid out so as to form a hierarchical arrangement, -- with some groups acting as subgroups for other groups. -- Alternately, disjoint groups of groups may be used to provide -- different sorts of "snapshots" of MTA operation. The -- mtaGroupHierarchy variable provides an indication of how each -- group fits into the overall arrangement being used. mtaGroupTable OBJECT-TYPE SYNTAX SEQUENCE OF MtaGroupEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The table holding information specific to each MTA group." ::= {mta 2} mtaGroupEntry OBJECT-TYPE SYNTAX MtaGroupEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The entry associated with each MTA group." INDEX {applIndex, mtaGroupIndex} ::= {mtaGroupTable 1} Expires August 1999 [Page 13]
Internet Draft Mail Monitoring MIB February 1999 MtaGroupEntry ::= SEQUENCE { mtaGroupIndex INTEGER, mtaGroupReceivedMessages Counter32, mtaGroupRejectedMessages Counter32, mtaGroupStoredMessages Gauge32, mtaGroupTransmittedMessages Counter32, mtaGroupReceivedVolume Counter32, mtaGroupStoredVolume Gauge32, mtaGroupTransmittedVolume Counter32, mtaGroupReceivedRecipients Counter32, mtaGroupStoredRecipients Gauge32, mtaGroupTransmittedRecipients Counter32, mtaGroupOldestMessageStored TimeInterval, mtaGroupInboundAssociations Gauge32, mtaGroupOutboundAssociations Gauge32, mtaGroupAccumulatedInboundAssociations Counter32, mtaGroupAccumulatedOutboundAssociations Counter32, mtaGroupLastInboundActivity TimeInterval, mtaGroupLastOutboundActivity TimeInterval, mtaGroupLastOutboundAssociationAttempt TimeInterval, mtaGroupRejectedInboundAssociations Counter32, mtaGroupFailedOutboundAssociations Counter32, mtaGroupInboundRejectionReason DisplayString, Expires August 1999 [Page 14]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupOutboundConnectFailureReason DisplayString, mtaGroupScheduledRetry TimeInterval, mtaGroupMailProtocol OBJECT IDENTIFIER, mtaGroupName DisplayString, mtaGroupSuccessfulConvertedMessages Counter32, mtaGroupFailedConvertedMessages Counter32, mtaGroupDescription DisplayString, mtaGroupURL URLString, mtaGroupCreationTime TimeInterval, mtaGroupHierarchy INTEGER, mtaGroupOldestMessageId DisplayString, mtaGroupLoopsDetected Counter32 } mtaGroupIndex OBJECT-TYPE SYNTAX INTEGER (1..2147483647) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The index associated with a group for a given MTA." ::= {mtaGroupEntry 1} mtaGroupReceivedMessages OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of messages received to this group since group creation." ::= {mtaGroupEntry 2} Expires August 1999 [Page 15]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupRejectedMessages OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of messages rejected by this group since group creation." ::= {mtaGroupEntry 3} mtaGroupStoredMessages OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of messages currently stored in this group's queue." ::= {mtaGroupEntry 4} mtaGroupTransmittedMessages OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of messages transmitted by this group since group creation." ::= {mtaGroupEntry 5} mtaGroupReceivedVolume OBJECT-TYPE SYNTAX Counter32 UNITS "K-octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total volume of messages received to this group since group creation, measured in kilo-octets. This volume should include all transferred data that is logically above the mail transport protocol level. For example, an SMTP-based MTA should use the number of kilo-octets in the message header and body, while an X.400-based MTA should use the number of kilo-octets of P2 data." ::= {mtaGroupEntry 6} Expires August 1999 [Page 16]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupStoredVolume OBJECT-TYPE SYNTAX Gauge32 UNITS "K-octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total volume of messages currently stored in this group's queue, measured in kilo-octets. This volume should include all stored data that is logically above the mail transport protocol level. For example, an SMTP-based MTA should use the number of kilo-octets in the message header and body, while an X.400-based MTA would use the number of kilo-octets of P2 data." ::= {mtaGroupEntry 7} mtaGroupTransmittedVolume OBJECT-TYPE SYNTAX Counter32 UNITS "K-octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The total volume of messages transmitted by this group since group creation, measured in kilo-octets. This volume should include all transferred data that is logically above the mail transport protocol level. For example, an SMTP-based MTA should use the number of kilo-octets in the message header and body, while an X.400-based MTA should use the number of kilo-octets of P2 data." ::= {mtaGroupEntry 8} mtaGroupReceivedRecipients OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of recipients specified in all messages received to this group since group creation. Recipients this MTA has no responsibility for should not be counted." ::= {mtaGroupEntry 9} Expires August 1999 [Page 17]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupStoredRecipients OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of recipients specified in all messages currently stored in this group's queue. Recipients this MTA has no responsibility for should not be counted." ::= {mtaGroupEntry 10} mtaGroupTransmittedRecipients OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of recipients specified in all messages transmitted by this group since group creation. Recipients this MTA had no responsibility for should not be counted." ::= {mtaGroupEntry 11} mtaGroupOldestMessageStored OBJECT-TYPE SYNTAX TimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "Time since the oldest message in this group's queue was placed in the queue." ::= {mtaGroupEntry 12} mtaGroupInboundAssociations OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of current associations to the group, where the group is the responder." ::= {mtaGroupEntry 13} Expires August 1999 [Page 18]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupOutboundAssociations OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of current associations to the group, where the group is the initiator." ::= {mtaGroupEntry 14} mtaGroupAccumulatedInboundAssociations OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of associations to the group since group creation, where the MTA was the responder." ::= {mtaGroupEntry 15} mtaGroupAccumulatedOutboundAssociations OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of associations from the group since group creation, where the MTA was the initiator." ::= {mtaGroupEntry 16} mtaGroupLastInboundActivity OBJECT-TYPE SYNTAX TimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "Time since the last time that this group had an active inbound association for purposes of message reception." ::= {mtaGroupEntry 17} mtaGroupLastOutboundActivity OBJECT-TYPE SYNTAX TimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "Time since the last time that this group had a successful outbound association for purposes of message delivery." ::= {mtaGroupEntry 18} Expires August 1999 [Page 19]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupLastOutboundAssociationAttempt OBJECT-TYPE SYNTAX TimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "Time since the last time that this group attempted to make an outbound association for purposes of message delivery." ::= {mtaGroupEntry 34} mtaGroupRejectedInboundAssociations OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of inbound associations the group has rejected, since group creation. Rejected associations are not counted in the accumulated association totals." ::= {mtaGroupEntry 19} mtaGroupFailedOutboundAssociations OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number associations where the group was the initiator and association establishment has failed, since group creation. Failed associations are not counted in the accumulated association totals." ::= {mtaGroupEntry 20} mtaGroupInboundRejectionReason OBJECT-TYPE SYNTAX DisplayString MAX-ACCESS read-only STATUS current DESCRIPTION "The failure reason, if any, for the last association this group refused to respond to. An empty string indicates that the last attempt was successful. If no association attempt has been made since the MTA was initialized the value should be 'never'." ::= {mtaGroupEntry 21} Expires August 1999 [Page 20]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupOutboundConnectFailureReason OBJECT-TYPE SYNTAX DisplayString MAX-ACCESS read-only STATUS current DESCRIPTION "The failure reason, if any, for the last association attempt this group initiated. An empty string indicates that the last attempt was successful. If no association attempt has been made since the MTA was initialized the value should be 'never'." ::= {mtaGroupEntry 22} mtaGroupScheduledRetry OBJECT-TYPE SYNTAX TimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "The time when this group is scheduled to next attempt to make an association." ::= {mtaGroupEntry 23} mtaGroupMailProtocol OBJECT-TYPE SYNTAX OBJECT IDENTIFIER MAX-ACCESS read-only STATUS current DESCRIPTION "An identification of the protocol being used by this group. For an group employing OSI protocols, this will be the Application Context. For Internet applications, the IANA maintains a registry of the OIDs which correspond to well-known message transfer protocols. If the application protocol is not listed in the registry, an OID value of the form {applTCPProtoID port} or {applUDProtoID port} are used for TCP-based and UDP-based protocols, respectively. In either case 'port' corresponds to the primary port number being used by the group. applTCPProtoID and applUDPProtoID are defined in the NETWORK-SERVICES-MIB, RFC XXXX." ::= {mtaGroupEntry 24} Expires August 1999 [Page 21]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupName OBJECT-TYPE SYNTAX DisplayString MAX-ACCESS read-only STATUS current DESCRIPTION "A descriptive name for the group. If this group connects to a single remote MTA this should be the name of that MTA. If this in turn is an Internet MTA this should be the domain name. For an OSI MTA it should be the string encoded distinguished name of the managed object using the format defined in RFC 1779. For X.400(1984) MTAs which do not have a Distinguished Name, the RFC 2156 syntax 'mta in globalid' used in X400-Received: fields can be used." ::= {mtaGroupEntry 25} mtaGroupSuccessfulConvertedMessages OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of messages that have been successfully converted from one form to another in this group since group creation." ::= {mtaGroupEntry 26} mtaGroupFailedConvertedMessages OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of messages for which an unsuccessful attempt was made to convert them from one form to another in this group since group creation." ::= {mtaGroupEntry 27} mtaGroupDescription OBJECT-TYPE SYNTAX DisplayString MAX-ACCESS read-only STATUS current DESCRIPTION "A description of the group's purpose. This information is intended to identify the group in a status display." ::= {mtaGroupEntry 28} Expires August 1999 [Page 22]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupURL OBJECT-TYPE SYNTAX URLString MAX-ACCESS read-only STATUS current DESCRIPTION "A URL pointing to a description of the group. This information is intended to identify and briefly describe the group in a status display." ::= {mtaGroupEntry 29} mtaGroupCreationTime OBJECT-TYPE SYNTAX TimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "Time since this group was first created." ::= {mtaGroupEntry 30} mtaGroupHierarchy OBJECT-TYPE SYNTAX INTEGER (-2147483648..2147483647) MAX-ACCESS read-only STATUS current DESCRIPTION "Describes how this group fits into the hierarchy. A positive value is interpreted as an mtaGroupIndex value for some other group whose variables include those of this group (and usually others). A negative value is interpreted as a group collection code: Groups with common negative hierarchy values comprise one particular breakdown of MTA activity as a whole. A zero value means that this MIB implementation doesn't implement hierarchy indicators and thus the overall group hierarchy cannot be determined." ::= {mtaGroupEntry 31} Expires August 1999 [Page 23]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupOldestMessageId OBJECT-TYPE SYNTAX DisplayString MAX-ACCESS read-only STATUS current DESCRIPTION "Message ID of the oldest message in the group's queue. Whenever possible this should be in the form of an RFC 822 msg-id; X.400 may convert X.400 message identifiers to this form by following the rules laid out in RFC2156." ::= {mtaGroupEntry 32} mtaGroupLoopsDetected OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "A message loop is defined as a situation where the MTA decides that a given message will never be delivered to one or more recipients and instead will continue to loop endlessly through one or more MTAs. This variable counts the number of times the MTA has detected such a situation in conjunction with something associated with this group since group creation. Note that the mechanism MTAs use to detect loops (e.g., trace field counting, count of references to this MTA in a trace field, examination of DNS or other directory information, etc.), the level at which loops are detected (e.g., per message, per recipient, per directory entry, etc.), and the handling of a loop once it is detected (e.g., looping messages are held, looping messages are bounced or sent to the postmaster, messages that the MTA knows will loop won't be accepted, etc.) vary widely from one MTA to the next and cannot be inferred from this variable." ::= {mtaGroupEntry 33} -- The mtaGroupAssociationTable provides a means of correlating -- entries in the network services association table with the -- MTA group responsible for the association. Expires August 1999 [Page 24]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupAssociationTable OBJECT-TYPE SYNTAX SEQUENCE OF MtaGroupAssociationEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The table holding information regarding the associations for each MTA group." ::= {mta 3} mtaGroupAssociationEntry OBJECT-TYPE SYNTAX MtaGroupAssociationEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The entry holding information regarding the associations for each MTA group." INDEX {applIndex, mtaGroupIndex, mtaGroupAssociationIndex} ::= {mtaGroupAssociationTable 1} MtaGroupAssociationEntry ::= SEQUENCE { mtaGroupAssociationIndex INTEGER } mtaGroupAssociationIndex OBJECT-TYPE SYNTAX INTEGER (1..2147483647) MAX-ACCESS read-only STATUS current DESCRIPTION "Reference into association table to allow correlation of this group's active associations with the association table." ::= {mtaGroupAssociationEntry 1} -- The mtaGroupErrorTable gives each group a way of tallying -- the specific errors it has encountered. The mechanism -- defined here uses RFC 1893 status codes to identify -- various specific errors. There are also classes for generic -- errors of various sorts, and the entire mechanism is also -- extensible, in that new error codes can be defined at any -- time. Expires August 1999 [Page 25]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupErrorTable OBJECT-TYPE SYNTAX SEQUENCE OF MtaGroupErrorEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The table holding information regarding accumulated errors for each MTA group." ::= {mta 5} mtaGroupErrorEntry OBJECT-TYPE SYNTAX MtaGroupErrorEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The entry holding information regarding accumulated errors for each MTA group." INDEX {applIndex, mtaGroupIndex, mtaStatusCode} ::= {mtaGroupErrorTable 1} MtaGroupErrorEntry ::= SEQUENCE { mtaGroupInboundErrorCount Counter32, mtaGroupInternalErrorCount Counter32, mtaGroupOutboundErrorCount Counter32 } mtaGroupInboundErrorCount OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Count of the number of errors of a given type that have been accumulated in assocation with a particular group while processing incoming messages. In the case of SMTP these will typically be errors reporting by an SMTP server to the remote client; in the case of X.400 these will typically be errors encountered while processing an incoming message." ::= {mtaGroupErrorEntry 1} Expires August 1999 [Page 26]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupInternalErrorCount OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Count of the number of errors of a given type that have been accumulated in assocation with a particular group during internal MTA processing." ::= {mtaGroupErrorEntry 2} mtaGroupOutboundErrorCount OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Count of the number of errors of a given type that have been accumulated in assocation with a particular group's outbound connection activities. In the case of an SMTP client these will typically be errors reported while attempting to contact or while communicating with the remote SMTP server. In the case of X.400 these will typically be errors encountered while constructing or attempting to deliver an outgoing message." ::= {mtaGroupErrorEntry 3} -- Conformance information mtaConformance OBJECT IDENTIFIER ::= {mta 4} mtaGroups OBJECT IDENTIFIER ::= {mtaConformance 1} mtaCompliances OBJECT IDENTIFIER ::= {mtaConformance 2} -- Compliance statements mtaCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for RFC 1566 implementations which support the Mail Monitoring MIB for basic monitoring of MTAs." MODULE -- this module MANDATORY-GROUPS {mtaGroup} ::= {mtaCompliances 1} Expires August 1999 [Page 27]
Internet Draft Mail Monitoring MIB February 1999 mtaAssocCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for RFC 1566 implementations which support the Mail Monitoring MIB for monitoring of MTAs and their associations." MODULE -- this module MANDATORY-GROUPS {mtaGroup, mtaAssocGroup} ::= {mtaCompliances 2} mtaRFC2249Compliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for RFC 2249 implementations which support the Mail Monitoring MIB for basic monitoring of MTAs." MODULE -- this module MANDATORY-GROUPS {mtaRFC2249Group} ::= {mtaCompliances 5} mtaRFC2249AssocCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for RFC 2249 implementations which support the Mail Monitoring MIB for monitoring of MTAs and their associations." MODULE -- this module MANDATORY-GROUPS {mtaRFC2249Group, mtaRFC2249AssocGroup} ::= {mtaCompliances 6} mtaRFC2249ErrorCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for RFC 2249 implementations which support the Mail Monitoring MIB for monitoring of MTAs and detailed errors." MODULE -- this module MANDATORY-GROUPS {mtaRFC2249Group, mtaRFC2249ErrorGroup} ::= {mtaCompliances 7} Expires August 1999 [Page 28]
Internet Draft Mail Monitoring MIB February 1999 mtaRFC2249FullCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for RFC 2249 implementations which support the full Mail Monitoring MIB for monitoring of MTAs, associations, and detailed errors." MODULE -- this module MANDATORY-GROUPS {mtaRFC2249Group, mtaRFC2249AssocGroup, mtaRFC2249ErrorGroup} ::= {mtaCompliances 8} mtaRFCYYYYCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for RFC YYYY implementations which support the Mail Monitoring MIB for basic monitoring of MTAs." MODULE -- this module MANDATORY-GROUPS {mtaRFCYYYYGroup} ::= {mtaCompliances 9} mtaRFCYYYYAssocCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for RFC YYYY implementations which support the Mail Monitoring MIB for monitoring of MTAs and their associations." MODULE -- this module MANDATORY-GROUPS {mtaRFCYYYYGroup, mtaRFCYYYYAssocGroup} ::= {mtaCompliances 10} mtaRFCYYYYErrorCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for RFC YYYY implementations which support the Mail Monitoring MIB for monitoring of MTAs and detailed errors." MODULE -- this module MANDATORY-GROUPS {mtaRFCYYYYGroup, mtaRFCYYYYErrorGroup} ::= {mtaCompliances 11} Expires August 1999 [Page 29]
Internet Draft Mail Monitoring MIB February 1999 mtaRFCYYYYFullCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for RFC YYYY implementations which support the full Mail Monitoring MIB for monitoring of MTAs, associations, and detailed errors." MODULE -- this module MANDATORY-GROUPS {mtaRFCYYYYGroup, mtaRFCYYYYAssocGroup, mtaRFCYYYYErrorGroup} ::= {mtaCompliances 12} -- Units of conformance mtaGroup OBJECT-GROUP OBJECTS { mtaReceivedMessages, mtaStoredMessages, mtaTransmittedMessages, mtaReceivedVolume, mtaStoredVolume, mtaTransmittedVolume, mtaReceivedRecipients, mtaStoredRecipients, mtaTransmittedRecipients, mtaGroupReceivedMessages, mtaGroupRejectedMessages, mtaGroupStoredMessages, mtaGroupTransmittedMessages, mtaGroupReceivedVolume, mtaGroupStoredVolume, mtaGroupTransmittedVolume, mtaGroupReceivedRecipients, mtaGroupStoredRecipients, mtaGroupTransmittedRecipients, mtaGroupOldestMessageStored, mtaGroupInboundAssociations, mtaGroupOutboundAssociations, mtaGroupAccumulatedInboundAssociations, mtaGroupAccumulatedOutboundAssociations, mtaGroupLastInboundActivity, mtaGroupLastOutboundActivity, mtaGroupRejectedInboundAssociations, mtaGroupFailedOutboundAssociations, mtaGroupInboundRejectionReason, mtaGroupOutboundConnectFailureReason, mtaGroupScheduledRetry, mtaGroupMailProtocol, mtaGroupName} STATUS current DESCRIPTION "A collection of objects providing basic monitoring of MTAs. This is the original set of such objects defined in RFC 1566." ::= {mtaGroups 1} Expires August 1999 [Page 30]
Internet Draft Mail Monitoring MIB February 1999 mtaAssocGroup OBJECT-GROUP OBJECTS { mtaGroupAssociationIndex} STATUS current DESCRIPTION "A collection of objects providing monitoring of MTA associations. This is the original set of such objects defined in RFC 1566." ::= {mtaGroups 2} mtaErrorGroup OBJECT-GROUP OBJECTS { mtaGroupInboundErrorCount, mtaGroupInternalErrorCount, mtaGroupOutboundErrorCount} STATUS current DESCRIPTION "A collection of objects providing monitoring of detailed MTA errors." ::= {mtaGroups 3} mtaRFC2249Group OBJECT-GROUP OBJECTS { mtaReceivedMessages, mtaStoredMessages, mtaTransmittedMessages, mtaReceivedVolume, mtaStoredVolume, mtaTransmittedVolume, mtaReceivedRecipients, mtaStoredRecipients, mtaTransmittedRecipients, mtaSuccessfulConvertedMessages, mtaFailedConvertedMessages, mtaGroupReceivedMessages, mtaGroupRejectedMessages, mtaGroupStoredMessages, mtaGroupTransmittedMessages, mtaGroupReceivedVolume, mtaGroupStoredVolume, mtaGroupTransmittedVolume, mtaGroupReceivedRecipients, mtaGroupStoredRecipients, mtaGroupTransmittedRecipients, mtaGroupOldestMessageStored, mtaGroupInboundAssociations, mtaGroupOutboundAssociations, mtaLoopsDetected, mtaGroupAccumulatedInboundAssociations, mtaGroupAccumulatedOutboundAssociations, mtaGroupLastInboundActivity, mtaGroupLastOutboundActivity, mtaGroupLastOutboundAssociationAttempt, mtaGroupRejectedInboundAssociations, mtaGroupFailedOutboundAssociations, mtaGroupInboundRejectionReason, mtaGroupOutboundConnectFailureReason, mtaGroupScheduledRetry, mtaGroupMailProtocol, mtaGroupName, mtaGroupSuccessfulConvertedMessages, mtaGroupFailedConvertedMessages, mtaGroupDescription, Expires August 1999 [Page 31]
Internet Draft Mail Monitoring MIB February 1999 mtaGroupURL, mtaGroupCreationTime, mtaGroupHierarchy, mtaGroupOldestMessageId, mtaGroupLoopsDetected} STATUS current DESCRIPTION "A collection of objects providing basic monitoring of MTAs. This group was originally defined in RFC 2249." ::= {mtaGroups 4} mtaRFC2249AssocGroup OBJECT-GROUP OBJECTS { mtaGroupAssociationIndex} STATUS current DESCRIPTION "A collection of objects providing monitoring of MTA associations. This group was originally defined in RFC 2249." ::= {mtaGroups 5} mtaRFC2249ErrorGroup OBJECT-GROUP OBJECTS { mtaGroupInboundErrorCount, mtaGroupInternalErrorCount, mtaGroupOutboundErrorCount} STATUS current DESCRIPTION "A collection of objects providing monitoring of detailed MTA errors. This group was originally defined in RFC 2249." ::= {mtaGroups 6} Expires August 1999 [Page 32]
Internet Draft Mail Monitoring MIB February 1999 mtaRFCYYYYGroup OBJECT-GROUP OBJECTS { mtaReceivedMessages, mtaStoredMessages, mtaTransmittedMessages, mtaReceivedVolume, mtaStoredVolume, mtaTransmittedVolume, mtaReceivedRecipients, mtaStoredRecipients, mtaTransmittedRecipients, mtaSuccessfulConvertedMessages, mtaFailedConvertedMessages, mtaGroupReceivedMessages, mtaGroupRejectedMessages, mtaGroupStoredMessages, mtaGroupTransmittedMessages, mtaGroupReceivedVolume, mtaGroupStoredVolume, mtaGroupTransmittedVolume, mtaGroupReceivedRecipients, mtaGroupStoredRecipients, mtaGroupTransmittedRecipients, mtaGroupOldestMessageStored, mtaGroupInboundAssociations, mtaGroupOutboundAssociations, mtaLoopsDetected, mtaGroupAccumulatedInboundAssociations, mtaGroupAccumulatedOutboundAssociations, mtaGroupLastInboundActivity, mtaGroupLastOutboundActivity, mtaGroupLastOutboundAssociationAttempt, mtaGroupRejectedInboundAssociations, mtaGroupFailedOutboundAssociations, mtaGroupInboundRejectionReason, mtaGroupOutboundConnectFailureReason, mtaGroupScheduledRetry, mtaGroupMailProtocol, mtaGroupName, mtaGroupSuccessfulConvertedMessages, mtaGroupFailedConvertedMessages, mtaGroupDescription, mtaGroupURL, mtaGroupCreationTime, mtaGroupHierarchy, mtaGroupOldestMessageId, mtaGroupLoopsDetected} STATUS current DESCRIPTION "A collection of objects providing basic monitoring of MTAs. This is the appropriate group for RFC YYYY." ::= {mtaGroups 7} mtaRFCYYYYAssocGroup OBJECT-GROUP OBJECTS { mtaGroupAssociationIndex} STATUS current DESCRIPTION "A collection of objects providing monitoring of MTA associations. This is the appropriate group for RFC YYYY association monitoring." ::= {mtaGroups 8} Expires August 1999 [Page 33]
Internet Draft Mail Monitoring MIB February 1999 mtaRFCYYYYErrorGroup OBJECT-GROUP OBJECTS { mtaGroupInboundErrorCount, mtaGroupInternalErrorCount, mtaGroupOutboundErrorCount} STATUS current DESCRIPTION "A collection of objects providing monitoring of detailed MTA errors. This is the appropriate group for RFC YYYY error monitoring." ::= {mtaGroups 9} END 7. Changes made since RFC 2249 This revision corrects a number of minor technical errors in the construction of the mail monitoring MIB in RFC 2249 [18]. There are no substantive changes to any of the objects the MIB defines. 8. Acknowledgements This document is a work product of the Mail and Directory Management (MADMAN) Working Group of the IETF. It is based on an earlier MIB designed by S. Kille, T. Lenggenhager, D. Partain, and W. Yeong. The Electronic Mail Association's TSC committee was instrumental in providing feedback on and suggesting enhancements to RFC 1566 [19] that have led to the present document. 9. References [1] Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for Describing SNMP Management Frameworks", RFC 2271, Cabletron Systems, Inc., BMC Software, Inc., IBM T. J. Watson Research, January 1998. Expires August 1999 [Page 34]
Internet Draft Mail Monitoring MIB February 1999 [2] Rose, M., and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP-based Internets", RFC 1155, Performance Systems International, Hughes LAN Systems, May 1990. [3] Rose, M., and K. McCloghrie, "Concise MIB Definitions", RFC 1212, Performance Systems International, Hughes LAN Systems, March 1991. [4] M. Rose, "A Convention for Defining Traps for use with the SNMP", RFC 1215, Performance Systems International, March 1991. [5] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Structure of Management Information for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1902, SNMP Research,Inc., Cisco Systems, Inc., Dover Beach Consulting, Inc., International Network Services, January 1996. [6] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Textual Conventions for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1903, SNMP Research, Inc., Cisco Systems, Inc., Dover Beach Consulting, Inc., International Network Services, January 1996. [7] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Conformance Statements for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1904, SNMP Research, Inc., Cisco Systems, Inc., Dover Beach Consulting, Inc., International Network Services, January 1996. [8] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple Network Management Protocol", RFC 1157, SNMP Research, Performance Systems International, Performance Systems International, MIT Laboratory for Computer Science, May 1990. [9] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901, SNMP Research, Inc., Cisco Systems, Inc., Dover Beach Consulting, Inc., International Network Services, January 1996. Expires August 1999 [Page 35]
Internet Draft Mail Monitoring MIB February 1999 [10] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Transport Mappings for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1906, SNMP Research, Inc., Cisco Systems, Inc., Dover Beach Consulting, Inc., International Network Services, January 1996. [11] Case, J., Harrington D., Presuhn R., and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2272, SNMP Research, Inc., Cabletron Systems, Inc., BMC Software, Inc., IBM T. J. Watson Research, January 1998. [12] Blumenthal, U., and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2274, IBM T. J. Watson Research, January 1998. [13] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Protocol Operations for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1905, SNMP Research, Inc., Cisco Systems, Inc., Dover Beach Consulting, Inc., International Network Services, January 1996. [14] Levi, D., Meyer, P., and B. Stewart, "SNMPv3 Applications", RFC 2273, SNMP Research, Inc., Secure Computing Corporation, Cisco Systems, January 1998. [15] Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2275, IBM T. J. Watson Research, BMC Software, Inc., Cisco Systems, Inc., January 1998. [16] Freed, N., Kille, S., "The Network Services Monitoring MIB", Internet Draft, November 1998. [17] Kille, S., "A String Representation of Distinguished Names", RFC 1779, March 1995. [18] Freed, N., Kille, S., "Mail Monitoring MIB", RFC 2249, January 1998. [19] Freed, N., Kille, S., "Mail Monitoring MIB", RFC 1566, January 1994. [20] Kille, S., "Mapping between X.400(1988) and RFC 822/MIME", RFC 2156, January 1998. Expires August 1999 [Page 36]
Internet Draft Mail Monitoring MIB February 1999 [21] Crocker, D., "Standard for the Format of ARPA Internet Text Message", STD 11, RFC 822, August 1982. [22] Vaudreuil, G., "Enhanced Mail System Status Codes", RFC 1893, January 1996. 10. Security Considerations This MIB does not offer write access, and as such cannot be used to actively attack a system. However, this MIB does provide passive information about the existance, type, and configuration of applications on a given host that could potentially indicate some sort of vulnerability. Finally, the information MIB provides about network usage could be used to analyze network traffic patterns. SNMPv1 by itself is not a secure environment. Even if the network itself is secure (for example by using IPSec), even then, there is no control as to who on the secure network is allowed to access and GET/SET (read/change/create/delete) the objects in this MIB. It is recommended that the implementers consider the security features as provided by the SNMPv3 framework. Specifically, the use of the User-based Security Model RFC 2274 [12] and the View-based Access Control Model RFC 2275 [15] is recommended. It is then a customer/user responsibility to ensure that the SNMP entity giving access to an instance of this MIB, is properly configured to give access to the objects only to those principals (users) that have legitimate rights to indeed GET or SET (change/create/delete) them. 11. Author and Chair Addresses Ned Freed Innosoft International, Inc. 1050 Lakes Drive West Covina, CA 91790 USA tel: +1 626 919 3600 fax: +1 626 919 3614 email: ned.freed@innosoft.com Expires August 1999 [Page 37]
Internet Draft Mail Monitoring MIB February 1999 Steve Kille, MADMAN WG Chair ISODE Consortium The Dome, The Square Richmond TW9 1DT UK tel: +44 181 332 9091 email: S.Kille@isode.com 12. Full Copyright Statement Copyright (C) The Internet Society (1999). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns. This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Expires August 1999 [Page 38]
