2 overview of mib ii – Compaq AAR04BCTE User Manual

Page 27

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MIBs Provided with TCP/IP Services

2.1 Overview of the Host Resources MIB

TCPIP$SNMP_REQUEST.EXE responds with no output and returns directly
to the DCL prompt.

After an NFS mount, the following information is returned in response to a

Get

request. The data items implemented for OpenVMS (refer to RFC 1514)

are:

hrFSIndex

.

hrFSMountPoint

is the local DNFS device name.

hrFSRemoteMountPoint

is the remote file system.

hrFSType

is implemented as:

OID 1.3.6.1.2.1.25.3.9.1, for OpenVMS if the file system is not a UNIX
style container file system.

hrFSNFS

, OID 1.3.6.1.2.1.25.3.9.14, if the file system is a TCP/IP

Services container file system or a UNIX host.

hrFSAccess

, as defined in RFC 1514.

hrFSBootable

is always HRM_FALSE (integer 2).

hrFSStorageIndex

is always 0.

hrFSLastFullBackupDate

is unknown time. This entry is encoded

according to RFC 1514 as a hexadecimal value 00-00-01-01-00-00-00-00
(January 1, 0000).

hrFSLastPartialBackupDate

is unknown time. This information is not

available for OpenVMS systems. Instead, hexadecimal value 00-00-01-01-
00-00-00-00 (January 1, 0000) applies.

hrProcessorFrwID

(OID prefix 1.3.6.1.2.1.25.3.3.1.1) is not implemented on

OpenVMS VAX. On this type of system, it returns standard null OID (0.0).
For example:

1.3.6.1.2.1.25.3.3.1.1.1 = 0.0

For OpenVMS Alpha (firmware version 5.56-7), the response is shown in the
following example:

1.3.6.1.2.1.25.3.3.1.1.1 = 1.3.6.1.2.1.25.3.3.1.1.1.5.56.7

Data items in the

hrDiskStorage

table have the following restrictions:

hrDiskStorageMedia

is always ‘‘unknown’’ (2).

hrDiskStorageRemoveble

is always ‘‘false’’ (2). Note the incorrect spelling

of ‘‘removable’’ in

hrDiskStorageRemoveble

(from RFC 1514).

hrStorageType

always contains the value of

hrStorageFixedDisk

(1.3.6.1.2.1.25.2.1.4).

2.2 Overview of MIB II

The Standard MIB (MIB II) described in RFC 1213 defines a set of objects useful
for managing TCP/IP Internet entities. MIB II supports network monitoring
and managing from the Transport layer down to the Physical layer of the
TCP/IP internet stack. This MIB also provides information on how connections
are established and how packets are routed through the Internet. For more
information about MIB architecture, see Section 3.2.

MIBs Provided with TCP/IP Services 2–5

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