TR-OPT-MIB

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Category: Legacy and Example MIBs

Description: Defines Token Ring protocol option parameters and configuration objects for network management.

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What Is TR-OPT-MIB?

TR-OPT-MIB is a legacy MIB defining Token Ring protocol option configuration objects, with object naming (cdx6500PCTPortProtocolGroup, cdx6500PSTPortProtocolGroup) tied to the cdx6500-series chassis, a legacy hub/concentrator product line from the Token Ring era. Its categories are limited to protocol-group configuration assigned to individual Token Ring ports rather than a broad set of statistics. Monitoring emphasis is primarily configuration-consistency verification rather than hardware sensors: comparing the protocol group assigned to ports intended to share the same ring segment confirms the ring is configured correctly, since a mismatch would prevent proper ring formation and manifest as a connectivity fault. It builds on the IETF Token Ring MIB standards (RFC 1749 dot5 tables) for base ring statistics, adding this vendor's protocol-group option extensions on top. It's associated with legacy enterprise/campus networks still running Token Ring media on cdx6500-series concentrators, a largely obsolete technology today. Engineers can download the TR-OPT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in TR-OPT-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

legacy Token Ring hub/concentrator (cdx6500-series chassis)

Monitoring Examples

An administrator reads cdx6500PCTPortProtocolGroup and cdx6500PSTPortProtocolGroup per port to confirm which protocol group (PCT or PST) a Token Ring port is assigned to, verifying that ports intended for the same ring segment share a consistent protocol-group setting. A mismatch between two ports expected to be on the same ring would indicate a misconfigured port preventing proper ring formation and explain a reported connectivity failure.

What Can Be Monitored

Token Ring port protocol group assignment (PCT)
Token Ring port protocol group assignment (PST)
per-port protocol configuration consistency across a ring segment

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
enterprises

OIDs

OID symbolic	OID numeric	Type	Access	Description
cdx6500	1.3.6.1.4.1.449.2.1
cdx6500CfgProtocolGroup	1.3.6.1.4.1.449.2.1.2.1
cdx6500Configuration	1.3.6.1.4.1.449.2.1.2
cdx6500Controls	1.3.6.1.4.1.449.2.1.4
INT cdx6500dot5EarlyTokenRelease	1.3.6.1.4.1.449.2.1.2.1.1.9.1.5	INTEGER	read-only	This parameter controls whether this station operating on a 16 Mbps ring will perform early token release. This parameter has no effect for 4 Mbps rings where early token release is not used. newvalDisable : same functionality as 'disable', new enumeration added for RFC1155 compatibility.
INT cdx6500dot5IfIndex	1.3.6.1.4.1.449.2.1.2.1.1.9.1.1	INTEGER	read-only	This object is the port number for the LAN Interface.
INT cdx6500dot5LanCableType	1.3.6.1.4.1.449.2.1.2.1.1.9.1.2	INTEGER	read-only	Specifies the type of cable and therefore which connector is used for LAN interface. utp : Unshielded twisted pair stp : Shielded twisted pair. newvalUtp : same functionality as 'utp', new enumeration added for RFC1155 compatibility.
INT cdx6500dot5LocalRingNumber	1.3.6.1.4.1.449.2.1.2.1.1.9.1.4	INTEGER	read-only	This parameter specifies the local ring number to which this port is attached. It is used as default if a value is not obtained from Ring Parameter Server.
MAC cdx6500dot5PortMacAddress	1.3.6.1.4.1.449.2.1.2.1.1.9.1.3	MacAddress	read-only	Specifies the MAC address of the LAN port. The entered value of 00-00-00-00-00-00 will be replaced by the Burned In Address (BIA) if the LAN hardware is present.
INT cdx6500dot5StatsClearStats	1.3.6.1.4.1.449.2.1.3.1.1.9.1.10	INTEGER	write-only	This is the command to reset the LAN port statistics.
CTR cdx6500dot5StatsDataBytesRx	1.3.6.1.4.1.449.2.1.3.1.1.9.1.3	Counter	read-only	This counter is incremented for each data byte received by the LAN port.
CTR cdx6500dot5StatsDataBytesTx	1.3.6.1.4.1.449.2.1.3.1.1.9.1.4	Counter	read-only	This counter is incremented for each data byte transmitted by the LAN port.
CTR cdx6500dot5StatsFrameSizeExc	1.3.6.1.4.1.449.2.1.3.1.1.9.1.5	Counter	read-only	This counter is incremented when the LAN port observes a frame that can not be forwarded because of excessive length.
INT cdx6500dot5StatsIfIndex	1.3.6.1.4.1.449.2.1.3.1.1.9.1.1	INTEGER	read-only	The value of this object identifies the 802.5 interface for which this entry contains management information.
STR cdx6500dot5StatsLastStatReset	1.3.6.1.4.1.449.2.1.3.1.1.9.1.9	DisplayString	read-only	Time stamp when the statistics were last reset.
INT cdx6500dot5StatsPortStatus	1.3.6.1.4.1.449.2.1.3.1.1.9.1.8	INTEGER	read-only	Indicates the status of the LAN port. newvalDisabled : same functionality as 'disabled', new enumeration added for RFC1155 compatibility.
INT cdx6500dot5StatsPortType	1.3.6.1.4.1.449.2.1.3.1.1.9.1.2	INTEGER	read-only	The currently running value of the Port type.
CTR cdx6500dot5StatsShortFrames	1.3.6.1.4.1.449.2.1.3.1.1.9.1.6	Counter	read-only	This counter is incremented when the LAN port observes a receive or transmitted frame which is less than 18 bytes.
CTR cdx6500dot5StatsTransmitDiscards	1.3.6.1.4.1.449.2.1.3.1.1.9.1.7	Counter	read-only	This counter is incremented when the LAN port discards the frame because the transmit queue exceeds the maximum queue length.
INT cdx6500dot5TransmitQueueLimit	1.3.6.1.4.1.449.2.1.2.1.1.9.1.6	INTEGER	read-only	Number of frames that can be queued on the transmitter before any frame is dropped.
cdx6500PCTPortProtocolGroup	1.3.6.1.4.1.449.2.1.2.1.1
cdx6500PPCTdot5PortEntry	1.3.6.1.4.1.449.2.1.2.1.1.9.1		not-accessible	A list of Token Ring status and parameter values for an 802.5 interface.
cdx6500PPCTdot5PortTable	1.3.6.1.4.1.449.2.1.2.1.1.9		not-accessible	This table contains Token Ring interface parameters and state variables, one entry per 802.5 interface.
cdx6500PPSTdot5PortEntry	1.3.6.1.4.1.449.2.1.3.1.1.9.1		not-accessible	An entry contains the 802.5 statistics for a particular interface.
cdx6500PPSTdot5PortTable	1.3.6.1.4.1.449.2.1.3.1.1.9		not-accessible	A table containing Token Ring statistics, one entry per 802.5 interface. All the statistics are defined using the syntax Counter as 32-bit wrap around counters. Thus, if an interface's hardware maintains these statistics in 16-bit counters, then the agent must read the hardware's counters frequently enough to prevent loss of significance, in order to maintain 32-bit counters in software.
cdx6500PSTPortProtocolGroup	1.3.6.1.4.1.449.2.1.3.1.1
cdx6500Statistics	1.3.6.1.4.1.449.2.1.3
cdx6500StatProtocolGroup	1.3.6.1.4.1.449.2.1.3.1
cdxProductSpecific	1.3.6.1.4.1.449.2
codex	1.3.6.1.4.1.449

RFC description

Manages Token Ring interface parameters and configuration on Codex CDX6500 systems.

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Download TR-OPT-MIB

What Is TR-OPT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description