PMDF System Manager's Guide


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31.6.2 MIB Variables Served

The subagents serve out selected variables from the MADMAN MIBs.3 Specifically, those variables from the applicationTable, mtaTable, and mtaGroupTable tables as shown in Table 31-4.

Table 31-4 Supported MIB Variables
applicationTable variables
Variable name OID Syntax
applName mib-2.27.1.1.2 String
applVersion mib-2.27.1.1.4 String
mtaTable variables
Variable name OID Syntax
mtaReceivedMessages mib-2.28.1.1.1 Counter32
mtaStoredMessages mib-2.28.1.1.2 Gauge32
mtaTransmittedMessages mib-2.28.1.1.3 Counter32
mtaReceivedVolume mib-2.28.1.1.4 Counter32
mtaStoredVolume mib-2.28.1.1.5 Gauge32
mtaTransmittedVolume mib-2.28.1.1.6 Counter32
mtaReceivedRecipients mib-2.28.1.1.7 Counter32
mtaStoredRecipients mib-2.28.1.1.8 Gauge32
mtaTransmittedRecipients mib-2.28.1.1.9 Counter32
mtaGroupTable variables
Variable name OID Syntax
mtaGroupReceivedMessages mib-2.28.2.1.2 Counter32
mtaGroupStoredMessages mib-2.28.2.1.4 Gauge32
mtaGroupTransmittedMessages mib-2.28.2.1.5 Counter32
mtaGroupReceivedVolume mib-2.28.2.1.6 Counter32
mtaGroupStoredVolume mib-2.28.2.1.7 Gauge32
mtaGroupTransmittedVolume mib-2.28.2.1.8 Counter32
mtaGroupReceivedRecipients mib-2.28.2.1.9 Counter32
mtaGroupStoredRecipients mib-2.28.2.1.10 Gauge32
mtaGroupTransmittedRecipients mib-2.28.2.1.11 Counter32
mtaGroupName mib-2.28.2.1.25 String


Note: the OID for mib-2 is 1.3.6.1.2.1.

Each PMDF channel is identified with with an MTA group. Thus, for each channel, there will be a row in the mtaGroupTable. For example, if there are M channels, the OID mib-2.28.2.1.25.n gives the name of the channel associated with the nth row in the table where n satisfies 1<=n<=M .

Only one application and MTA is recognized by the subagent and consequently there is only one row in the applicationTable and mtaTable tables. The only valid instance identifier for those two tables is thus ".1"; i.e., for either table, the OID for an instance of a variable is formed by taking the OID of the variable and appending ".1" to it. For example, a get operation on mib-2.27.1.1.4.1 would return the version number of PMDF.

Each row of the mtaGroupTable table corresponds to a set of PMDF channel counters maintained by PMDF. A description of each variable is given in Table 31-5. These counters may be directly manipulated on OpenVMS PMDF systems with either the PMDF COUNTERS utility or the PMDF QM/MAINTENANCE utility. Refer to the Section 31.4 for further information on the PMDF channel counters.

Table 31-5 Variable Descriptions
mtaGroupTable variable PMDF counter Description
mtaGroupReceivedMessages RECEIVED_MESSAGES Count of messages enqueued to the channel.
mtaGroupStoredMessages STORED_MESSAGES Count of messages enqueued to the channel but not yet delivered.
mtaGroupTransmittedMessages DELIVERED_MESSAGES Count of messages delivered (dequeued) by the channel.
mtaGroupReceivedVolume RECEIVED_VOLUME Volume of messages enqueued to the channel as measured in Kbytes = 1024 bytes.
mtaGroupStoredVolume STORED_VOLUME Volume of messages enqueued to the channel but not yet delivered as measured in Kbytes.
mtaGroupTransmittedVolume DELIVERED_VOLUME Volume of messages which have been delivered (dequeued) by the channel as measured in Kbytes.
mtaGroupReceivedRecipients RECEIVED_RECIPIENTS Volume of messages enqueued to the channel as measured by the total number of envelope recipient addresses.
mtaGroupStoredRecipients STORED_RECIPIENTS Volume of messages enqueued to the channel but not yet delivered as measured by the total number of envelope recipient addresses.
mtaGroupTransmittedRecipients DELIVERED_RECIPIENTS Volume of messages which have been delivered (dequeued) by the channel as measured by the total number of envelope recipient addresses.
mtaGroupName   Name of the channel.

The values in the mtaTable correspond to the column sums of the mtaGroupTable; e.g., mtaReceivedMessages is the sum over all rows of the mtaGroupTable column mtaGroupReceivedMessages.

Note

The underlying PMDF channel counters may take on negative values. However, the corresponding MIB variables must be non-negative. To reconcile this difference, the subagent tracks the minimum value seen for each channel counter and then uses that minimum to adjust the MIB variable such that it has a minimum of zero. This is done by subtracting the minimum value from the counter when that minimum is less than zero. For this reason, the values of the counters displayed with the PMDF COUNTERS command may differ from those displayed from an SNMP client.

Note

3 See RFCs 1565 and 1566 for the specification of those MIBs. Copies of those RFCs may be found in the directory pmdf_root:[doc.rfc].


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