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-
- Internet Draft
- Mail Monitoring MIB
-
- MADMAN Working Group
- June 18, 1993
- Expires: December 18, 1993
-
- 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 other
- Internet Draft.
-
- Abstract
-
- This document extends the basic Network Services Monitoring MIB to
- allow monitoring of Message Transfer Agents (MTAs).
-
- MTA Objects
-
- If there are one or more MTAs on the host, the following mta group may
- be used to monitor them. Any number of the MTAs on a host may be
- monitored. Each MTA is dealt with as a separate application and has
- its own applTable entry in the Network Services Monitoring MIB.
-
- 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 occurs
- in four steps:
-
- (1) Messages are submitted to the MTA by 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 delivered 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 may make it necessary to duplicate
- messages.
-
- (3) Messages are converted into the format that's appropriate for the next
- hop.
-
- (4) Messages are delivered to the appropriate destination, which may be a
- User Agent, Message Store, another MTA, or another 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) all occur prior to storage.
- Other MTAs store messages precisely as they are received and perform
- all expansion and conversion processing during retransmission
- processing. So here only (1) occurs prior to storage. This leads to a
- situation where, in general, a measurement of messages received may
- not equal a measurement of messages in store, a measurement of
- messages stored may not equal a measurement of messages retransmitted,
- or both.
-
- MTA-MIB DEFINITIONS ::= BEGIN
-
- IMPORTS
- OBJECT-TYPE FROM RFC-1212
- experimental, Counter, Gauge FROM RFC1155-SMI
- DisplayString FROM RFC1213-MIB
- applIndex, applProtoID FROM APPLICATION-MIB;
-
- mta OBJECT IDENTIFIER ::= {experimental xxx}
-
- mtaTable OBJECT-TYPE
- SYNTAX SEQUENCE OF MTAEntry
- ACCESS not-accessible
- STATUS mandatory
- DESCRIPTION
- "The table holding information specific to an MTA."
- ::= {mta 1}
-
- mtaEntry OBJECT-TYPE
- SYNTAX MTAEntry
- ACCESS not-accessible
- STATUS mandatory
- DESCRIPTION
- "The entry associated with each MTA."
- INDEX {applIndex}
- ::= {mtaTable 1}
-
- MTAEntry ::= SEQUENCE {
- mtaSubmittedMessages
- Counter,
- mtaStoredMessages
- Gauge,
- mtaDeliveredMessages
- Counter,
- mtaSubmittedVolume
- Counter,
- mtaStoredVolume
- Gauge,
- mtaDeliveredVolume
- Counter,
- mtaSubmittedRecipients
- Counter,
- mtaStoredRecipients
- Gauge,
- mtaDeliveredRecipients
- Counter
- }
-
- mtaSubmittedMessages OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The number of messages submitted since MTA initialization."
- ::= {mtaEntry 1}
-
- mtaStoredMessages OBJECT-TYPE
- SYNTAX Gauge
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of messages currently stored in the MTA."
- ::= {mtaEntry 2}
-
- mtaDeliveredMessages OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The number of messages delivered since MTA initialization."
- ::= {mtaEntry 3}
-
- mtaSubmittedVolume OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total volume of messages submitted since MTA
- initialization, measured in kbytes."
- ::= {mtaEntry 4}
-
- mtaStoredVolume OBJECT-TYPE
- SYNTAX Gauge
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total volume of messages currently stored in the MTA,
- measured in kbytes."
- ::= {mtaEntry 5}
-
- mtaDeliveredVolume OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total volume of messages delivered since MTA
- initialization, measured in kbytes."
- ::= {mtaEntry 6}
-
- mtaSubmittedRecipients OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of recipients specified in all messages submitted
- since MTA initialization."
- ::= {mtaEntry 7}
-
- mtaStoredRecipients OBJECT-TYPE
- SYNTAX Gauge
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of recipients specified in all messages currently
- stored in the MTA."
- ::= {mtaEntry 8}
-
- mtaDeliveredRecipients OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of recipients specified in all messages delivered
- since MTA initialization."
- ::= {mtaEntry 9}
-
- -- MTAs typically group inbound submissions, queue storage, and
- -- outbound deliveries in some way. In the most extreme case
- -- information will be maintained for each different entity that
- -- submits messages and for each entity the MTA stores messages for
- -- and delivers messages to. Other MTAs may elect to treat all
- -- submissions equally, all queue storage equally, all deliveries
- -- equally, or some combination of this.
-
- -- 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.
-
- -- 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" abstration one-to-one onto the MIB's group abstration.
-
- groupTable OBJECT-TYPE
- SYNTAX SEQUENCE OF GroupEntry
- ACCESS not-accessible
- STATUS mandatory
- DESCRIPTION
- "The table holding information specific to each MTA group."
- ::= {mta 2}
-
- groupEntry OBJECT-TYPE
- SYNTAX GroupEntry
- ACCESS not-accessible
- STATUS mandatory
- DESCRIPTION
- "The entry associated with each MTA group."
- INDEX {applIndex, groupIndex}
- ::= {groupTable 1}
-
- GroupEntry ::= SEQUENCE {
- groupIndex
- INTEGER,
- groupSubmittedMessages
- Counter,
- groupRejectedMessages
- Counter,
- groupStoredMessages
- Gauge,
- groupDeliveredMessages
- Counter,
- groupSubmittedVolume
- Counter,
- groupStoredVolume
- Gauge,
- groupDeliveredVolume
- Counter,
- groupSubmittedRecipients
- Counter,
- groupStoredRecipients
- Gauge,
- groupDeliveredRecipients
- Counter,
- groupQueuedMtaAssociationIndex
- INTEGER,
- groupOldestMessageStored
- TimeTicks,
- groupInboundAssociations
- Gauge,
- groupOutboundAssociations
- Gauge,
- groupAccumulatedInboundAssociations
- Counter,
- groupAccumulatedOutboundAssociations
- Counter,
- groupLastInboundActivity
- TimeTicks,
- groupLastOutboundActivity
- TimeTicks,
- groupRejectedInboundAssociations
- Counter,
- groupFailedOutboundAssociations
- Counter,
- groupInboundRejectionReason
- DisplayString,
- groupOutboundConnectFailureReason
- DisplayString,
- groupScheduledRetry
- TimeTicks,
- groupMailProtocol
- OBJECT IDENTIFIER,
- groupName
- DisplayString
- }
-
- groupIndex OBJECT-TYPE
- SYNTAX INTEGER (1..2147483647)
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The index associated with a group for a given MTA."
- ::= {groupEntry 1}
-
- groupSubmittedMessages OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The number of messages submitted to this group since MTA
- initialization."
- ::= {groupEntry 2}
-
- groupSubmittedMessages OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The number of messages rejected by this group since MTA
- initialization."
- ::= {groupEntry 3}
-
- groupStoredMessages OBJECT-TYPE
- SYNTAX Gauge
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of messages currently stored in this
- group's queue."
- ::= {groupEntry 4}
-
- groupDeliveredMessages OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The number of messages delivered by this group since MTA
- initialization."
- ::= {groupEntry 5}
-
- groupSubmittedVolume OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total volume of messages submitted to this group since
- MTA initialization, measured in kbytes."
- ::= {groupEntry 6}
-
- groupStoredVolume OBJECT-TYPE
- SYNTAX Gauge
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total volume of messages currently stored in this
- group's queue, measured in kbytes."
- ::= {groupEntry 7}
-
- groupDeliveredVolume OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total volume of messages delivered by this group since
- MTA initialization, measured in kbytes."
- ::= {groupEntry 8}
-
- groupSubmittedRecipients OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of recipients specified in all messages
- submitted to this group since MTA initialization."
- ::= {groupEntry 9}
-
- groupStoredRecipients OBJECT-TYPE
- SYNTAX Gauge
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of recipients specified in all messages
- currently stored in this group's queue."
- ::= {groupEntry 10}
-
- groupDeliveredRecipients OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of recipients specified in all messages
- delivered by this group since MTA initialization."
- ::= {groupEntry 11}
-
- groupQueuedMtaAssociationIndex
- SYNTAX INTEGER (0..2147483647)
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "Reference into association table to allow correlation of this
- group's active association with the association table. If
- there is no active association for this group this value should
- be 0."
- ::= {groupEntry 12}
-
- groupOldestMessageStored
- SYNTAX TimeTicks
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The age of the oldest message in this group's queue."
- ::= {groupEntry 13}
-
- groupInboundAssociations OBJECT-TYPE
- SYNTAX Gauge
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The number of current associations to the group, where the
- group is the responder." For dynamic single
- ::= {groupEntry 14}
-
- groupOutboundAssociations OBJECT-TYPE
- SYNTAX Gauge
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The number of current associations to the group, where the
- group is the initiator."
- ::= {groupEntry 15}
-
- groupAccumulatedInboundAssociations OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of associations to the group since MTA
- initialization, where the group is the responder."
- ::= {groupEntry 16}
-
- groupAccumulatedOutboundAssociations OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of associations from the group since MTA
- initialization, where the group was the initiator."
- ::= {groupEntry 17}
-
- groupLastInboundActivity OBJECT-TYPE
- SYNTAX TimeTicks
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "Time since the last time that this group had an active
- inbound association for purposes of message submission."
- ::= {groupEntry 18}
-
- groupLastOutboundActivity OBJECT-TYPE
- SYNTAX TimeTicks
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "Time since the last time that this group had an
- outbound association for purposes of message delivery."
- ::= {groupEntry 19}
-
- groupRejectedInboundAssociations OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of inbound associations the group has
- rejected, since MTA initialization."
- ::= {groupEntry 20}
-
- groupFailedOutboundAssociations OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number associations where the group was the
- initiator and association establishment has failed,
- since MTA initialization."
- ::= {groupEntry 21}
-
- groupInboundRejectionReason
- SYNTAX DisplayString
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The failure reason, if any, for the last connection this
- group refused to respond to. An empty string indicates that
- the last attempt was successful. If no connection attempt has
- been made since the MTA was initializaed the value should be
- 'never'."
- ::= {groupEntry 22}
-
- groupOutboundConnectFailureReason
- SYNTAX DisplayString
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The failure reason, if any, for the last connection attempt
- this group initiated. An empty string indicates that the last
- attempt was successful. If no connection attempt has been
- made since the MTA was initializaed the value should be
- 'never'."
- ::= {groupEntry 23}
-
- groupScheduledRetry OBJECT-TYPE
- SYNTAX TimeTicks
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The scheduled time at which this group will next attempt to
- make a connection. This time is relative to the query time."
- ::= {groupEntry 24}
-
- groupMailProtocol OBJECT-TYPE
- SYNTAX OBJECT IDENTIFIER
- ACCESS read-only
- STATUS mandatory
- 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, the value {applProtoID port} is used
- where 'port' corresponds to the primary port being used by the
- group."
- ::= {groupEntry 25}
-
- groupName OBJECT-TYPE
- SYNTAX DisplayString
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "A descriptive name for the name. 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-?.
- For X.400(1984) MTAs which do not have a Distinguished Name,
- the RFC-1327 syntax 'mta in globalid' should be used."
- ::= {groupEntry 26}
-
- END
-
- Expires: December 18, 1993
-
-