Fore-tp25-MIB

All MIBs › Fore-tp25-MIB

Organization: FORE

Last Updated: 1999-11-05

Category: ATM, Vendor: Fore Systems (ATM)

Description: Fore Systems TP-25 (25 Mbit/s twisted-pair ATM) interface MIB providing management objects for low-speed desktop ATM connections.

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What Is Fore-tp25-MIB?

Fore-tp25-MIB is a Fore Systems vendor MIB for the 25.6 Mbps UTP/STP ("TP-25") desktop ATM port module supported on ForeRunner switches. It exposes per-port configuration (board/module/port addressing, media type, loopback configuration, receive timing) and a companion error table using the same port addressing scheme. This makes it a hardware/link-status monitoring MIB for low-speed desktop ATM connections, useful for confirming a port's media/loopback configuration and tracking line errors that indicate cabling or physical-layer problems. It has no apparent dependency on standard MIBs, being entirely specific to this Fore port-module hardware. It would be deployed where ForeRunner switches provided direct ATM-to-the-desktop connectivity, a now-legacy access technology. Engineers can download the Fore-tp25-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Fore-tp25-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

Fore Systems ForeRunner ATM switch (TP-25 desktop ATM port module)

Monitoring Examples

An operator would check tp25MediaType and tp25LoopbackConfig in tp25ConfTable, indexed by tp25ConfBoard/tp25ConfModule/tp25ConfPort, to confirm a desktop ATM port is configured correctly for its cabling type. Rising counts in tp25ErrorTable (keyed on the same board/module/port indices) would indicate physical-layer problems such as a bad UTP cable or timing mismatch, especially if tp25RxTiming settings do not match the far end. This MIB is limited to per-port physical/link-layer status rather than higher-layer ATM traffic statistics.

What Can Be Monitored

port media type
loopback configuration
receive timing setting
per-port physical layer error counts

Imported Objects

From Fore-Common-MIB

asx	OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

How to Use in IPNetwork Monitor

Example using tp25ErrorSymbol OID:

Select a Fore Systems (later Marconi) ForeRunner ATM switch (TP-25 desktop ATM port module) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type tp25ErrorSymbol into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of all undefined 5 bit symbols received. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
foreTP25Module	1.3.6.1.4.1.326.2.2.1.1.9			The foreTP25 Module supports all switchs that have the 25.6Mbps UTP/STP port module.
tp25ConfGroup	1.3.6.1.4.1.326.2.2.1.1.9.1
tp25ConfTable	1.3.6.1.4.1.326.2.2.1.1.9.1.1		not-accessible	A table of TP25(25.6Mbps UTP/STP switch port configuration information.
tp25ConfEntry	1.3.6.1.4.1.326.2.2.1.1.9.1.1.1		not-accessible	A table entry containing TP25 configuration information for each port.
I32 tp25ConfBoard	1.3.6.1.4.1.326.2.2.1.1.9.1.1.1.1	Integer32	read-only	The index of this port's switch board.
I32 tp25ConfModule	1.3.6.1.4.1.326.2.2.1.1.9.1.1.1.2	Integer32	read-only	The network module of this port.
I32 tp25ConfPort	1.3.6.1.4.1.326.2.2.1.1.9.1.1.1.3	Integer32	read-only	The number of this port.
INT tp25MediaType	1.3.6.1.4.1.326.2.2.1.1.9.1.1.1.4	INTEGER	read-only	This variable represents the type of the physical medium connected to the TP25 interface: tp25UTP (1) means physical media is UTP tp25STP (2) means physical media is STP tp25FTP (3) means physical media is FTP.
INT tp25LoopbackConfig	1.3.6.1.4.1.326.2.2.1.1.9.1.1.1.5	INTEGER	read-write	This variable represents the loopback configuration of the TP25 interface. tp25NoLoop (1) means that the interface is not in a loopback state. tp25DiagLoop (2) means that the transmit data stream is looped back to the receiver. tp25LineLoop (3) also known as remote loopback, in this state received data is transfered to upstream system as well as looped back to the transmitter.
INT tp25RxTiming	1.3.6.1.4.1.326.2.2.1.1.9.1.1.1.6	INTEGER	read-only	This variable represents the type of the physical medium connected to the TP25 interface: tp25NoTimingPresent (1) means port is not receiving sync pulses. tp25TimingPresent (2) means port is receiving sync pulses.
tp25StatsGroup	1.3.6.1.4.1.326.2.2.1.1.9.2
tp25ErrorTable	1.3.6.1.4.1.326.2.2.1.1.9.2.1		not-accessible	A table of TP25 error counters.
tp25ErrorEntry	1.3.6.1.4.1.326.2.2.1.1.9.2.1.1		not-accessible	A table entry containing TP25 error counters.
I32 tp25ErrorBoard	1.3.6.1.4.1.326.2.2.1.1.9.2.1.1.1	Integer32	read-only	The index of this port's switch board.
I32 tp25ErrorModule	1.3.6.1.4.1.326.2.2.1.1.9.2.1.1.2	Integer32	read-only	The network module of this port.
I32 tp25ErrorPort	1.3.6.1.4.1.326.2.2.1.1.9.2.1.1.3	Integer32	read-only	The number of this port.
C32 tp25ErrorSymbolEx	1.3.6.1.4.1.326.2.2.1.1.9.2.1.1.4	Counter32	read-only	The number of all undefined 5 bit symbols received.
tp25AtmTable	1.3.6.1.4.1.326.2.2.1.1.9.2.2		not-accessible	A table of TP25 ATM statistics information.
tp25AtmEntry	1.3.6.1.4.1.326.2.2.1.1.9.2.2.1		not-accessible	A table entry containing TP25 ATM statistics information.
I32 tp25AtmBoard	1.3.6.1.4.1.326.2.2.1.1.9.2.2.1.1	Integer32	read-only	The index of this port's switch board.
I32 tp25AtmModule	1.3.6.1.4.1.326.2.2.1.1.9.2.2.1.2	Integer32	read-only	The network module of this port.
I32 tp25AtmPort	1.3.6.1.4.1.326.2.2.1.1.9.2.2.1.3	Integer32	read-only	The number of this port.
C32 tp25AtmHCSs	1.3.6.1.4.1.326.2.2.1.1.9.2.2.1.4	Counter32	read-only	Number of header check sequence (HCS) error events. The HCS is a CRC-8 calculation over the first 4 octets of the ATM cell header.
C32 tp25AtmRxCells	1.3.6.1.4.1.326.2.2.1.1.9.2.2.1.5	Counter32	read-only	Number of ATM cells that were received.
C32 tp25AtmTxCells	1.3.6.1.4.1.326.2.2.1.1.9.2.2.1.6	Counter32	read-only	Number of non-null ATM cells that were transmitted.

RFC description

Manages 25.6Mbps UTP/STP port module configuration and statistics on Fore ATM switches.

Start monitoring Fore Systems (later Marconi) ForeRunner ATM switch (TP-25 desktop ATM port module) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download Fore-tp25-MIB