IBM 8239 Token-Ring Stackable Hub, Setup And User Manual

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Token-Ring workstation that has a physical path to the network that the Model 1 is
monitoring (in-band access).
IEEE 802.5 Token Ring MIB (RFC 1748)
Use the IEEE 802.5 MIB (RFC 1748) to obtain information about a specific
Token-Ring interface. This MIB collects information for the 8239 Model 1’s
Management Interface, as opposed to information about all the stations on the
network that the Model 1 is monitoring.
The 8239 Model 1 supports the following tables in the 802.5 MIB:
¹
The Interface Table, which tracks the state of the 802.5 interface and some of
the characteristics associated with the 802.5 interface
¹
The Statistics Table, which tracks statistics and MAC-level error counters for
the 802.5 interface
Configuring the 8239 Model 1 to Support the 802.5 MIB
Whenever the 8239 Model 1 is operational, the 8239 will automatically provide
information from the Interface Table. To collect data for the Statistics Table, the
8239 Model 1 must be configured to do so. Configure the 8239 Model 1 using the
SET MANAGEMENT_INTERFACE 802.5_GROUP terminal interface command or
by issuing an SNMP Set request to the appropriate object in the IBM 8239 TR Hub
MIB (
8239 MIB).
The factory default for 802.5_GROUP is DISABLED, which means that all of the
entries in the Statistics Table are set to 0. To allow the 8239 Model 1 to increment
the counters in the Statistics Table, issue the SET MANAGEMENT_INTERFACE
802.5_GROUP ENABLE command or issue an SNMP Set request to the
appropriate object in the 8239 MIB.
Accessing 802.5 Information
The 802.5 Interface Table and Statistics Table can be obtained by the following
methods:
¹
SNMP using the IEEE 802.5 MIB (OID dot5 of 1.3.6.1.2.1.10.9)
¹
Terminal interface using the DISPLAY COUNTER 802.5 command
The 8239 Model 1 does not support the dot5LastBeaconSent object in the Interface
Table.
Interface Table
The Interface Table contains some objects that are defined to have read/write
access in the 802.5 MIB, but all of the read/write objects in the 802.5 MIB are
supported as read-only in the 8239. The “write” action described in the 802.5 MIB
can be performed using an IBM private MIB or the 8239 terminal interface. The
read/write objects in the 802.5 MIB are listed here, along with the corresponding
8239 request you can use to accomplish the same action:
¹
dot5Commands
The dot5Commands are Nop, Open, Close, and Reset. The 8239 does not
support a Nop function.
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8239 Setup and User’s Guide