Compaq AAR04BCTE manual MIBs Provided with TCP/IP Services 2.2 Overview of MIB, d n hhmmss

MIBs Provided with TCP/IP Services 2.2 Overview of MIB II

When both the TCPIP$OS_MIBS and TCPIP$HR_MIB subagents are running, a get request on the sysORTable is as follows. Except where noted, the OIDs conform to RFC 1907.

1.3.6.1.2.1.1.9.1.2.1= 1.3.6.1.4.1.36.15.3.3.1.1

1.3.6.1.2.1.1.9.1.2.2= 1.3.6.1.4.1.36.15.3.3.1.2

1.3.6.1.2.1.1.9.1.3.1= Base o/s agent (OS_MIBS) capabilities

1.3.6.1.2.1.1.9.1.3.2= Base o/s agent (HR_MIB) capabilities

1.3.6.1.2.1.1.9.1.4.1= 31 = 0 d 0:0:0

1.3.6.1.2.1.1.9.1.4.2= 36 = 0 d 0:0:0

This example is from the MIB browser (TCPIP$SNMP_REQUEST.EXE).

•Under certain conditions, a subagent makes a duplicate entry in sysORTable when it restarts. For example:

1.3.6.1.2.1.1.9.1.2.1= 1.3.6.1.4.1.36.15.3.3.1.1

1.3.6.1.2.1.1.9.1.2.2= 1.3.6.1.4.1.36.15.3.3.1.2

1.3.6.1.2.1.1.9.1.2.1= Base o/s agent (OS_MIBS) capabilities

1.3.6.1.2.1.1.9.1.2.2= Base o/s agent (OS_MIBS) capabilities

1.3.6.1.2.1.1.9.1.4.1= 3256 = 0 d 0:0:32

1.3.6.1.2.1.1.9.1.4.2= 3256 = 0 d 0:0:32

In this example, the TCPIP$OS_MIBS subagent made two entries with different ID numbers (OIDs with the prefix 1.3.6.1.2.1.1.9.1.2) that may show different sysORUpTime (1.3.6.1.2.1.1.9.1.4). The snmp_request program translates the value received (in hundredths of a second) to the following, dropping any fractions of seconds:

d n hh:mm:ss

In this format, n represents the number of days, hh represents the number of hours, mm represents the number of minutes, and ss represents the number of seconds.

The HR_MIB subagent has not yet successfully started and registered its capabilities. If it starts, its entries in this example would use the next available index number.

•On systems running versions of the operating system prior to OpenVMS

7.1-2, counters for the MIB II ifTable do not wrap back to 9 after reaching the maximum value (232 01), as defined in RFC 1155. Instead, they behave like the gauge type and remain at the maximum value until cleared by an external event, such as a system reboot. The following counters are affected:

ifInDiscards ifInErrors ifInNUcastPkts ifInOctets ifInUcastPkts ifInUnknownProtos ifOutErrors ifOutNUcastPkts ifOutOctets ifOutUcastPkts

Note that for SNMP Version 2, these counters are data type Counter32. The following ifTable members are always -1 for OpenVMS:

ifOutDiscards (Counter32) ifOutQLen (Gauge32)

MIBs Provided with TCP/IP Services 2–7