X25W-MIB

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Category: X.25 and Legacy WAN

Description: Monitors X.25 WAN interface parameters, connection states, and packet-level error counters.

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What Is X25W-MIB?

X25W-MIB is a networking MIB for monitoring X.25 WAN interfaces, associated with legacy WAN/access-router products (object naming suggests a US Robotics/NAS-style vendor context). It defines administrative and operational tables describing X.25 WAN link type, speed, clocking source, maximum frame size, and link availability. Its use is in monitoring connection-level status and configuration consistency of X.25 packet-switched WAN links, letting an administrator confirm the administratively configured parameters match the operational state of the interface. It complements the standard IF-MIB, since X.25 WAN interfaces are typically also represented as generic interfaces with their own ifTable entries alongside this X.25-specific detail. It is deployed on WAN access routers or network access servers (NAS) providing X.25 packet-switched connectivity, common in legacy telecom, banking, or government networks. Engineers can download the X25W-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in X25W-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

X.25 WAN access router / network access server (NAS)

Monitoring Examples

An administrator would compare x25wanAdmnTable entries such as x25wanAdmnType, x25wanAdmnSpeed, and x25wanAdmnMaxFrmSize against the corresponding x25wanOperTable/x25wanOperEntry operational values (x25wanOperType) to detect a mismatch indicating misconfiguration. Checking x25wanAdmnLinkAvailable and x25wanAdmnClockSouce would reveal whether the link is currently available and which side is providing clock timing, helping diagnose a down or unsynchronized X.25 link.

What Can Be Monitored

X.25 link type and speed
link availability
clock source configuration
maximum frame size
administrative vs operational link state

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
Gauge
IpAddress
TimeTicks
enterprises
experimental

From RFC1213-MIB

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
usr	1.3.6.1.4.1.429
nas	1.3.6.1.4.1.429.1
x25w	1.3.6.1.4.1.429.1.8
x25wanAdmn	1.3.6.1.4.1.429.1.8.1
x25wanAdmnTable	1.3.6.1.4.1.429.1.8.1.1		not-accessible	The x25 WAN Admn table contains an entry for each manageable X.25 Subnet in the chassis. It provides a means to configure serial interface associated with the subnet.
x25wanAdmnEntry	1.3.6.1.4.1.429.1.8.1.1.1		not-accessible	There is one x25 WAN Cfg entry per x.25 subnet in the NAS chassis.
INT x25wanAdmnIndex	1.3.6.1.4.1.429.1.8.1.1.1.1	INTEGER	read-only	A unique value for each X.25 Subnet in the chassis. The value of this object matches the value of the index of the corresponding X.25 Subnet's entry in the entity table of the chassis MIB.
INT x25wanAdmnType	1.3.6.1.4.1.429.1.8.1.1.1.2	INTEGER	read-write	Defines which physical serial interface type is implemented.
INT x25wanAdmnSpeed	1.3.6.1.4.1.429.1.8.1.1.1.3	INTEGER	read-write	Defines the serial port speed used in applications where the Gateway NAC generates a clock. This object will not effect the clock speed when the host provides the clock source. Default=57600.
INT x25wanAdmnLinkAvailable	1.3.6.1.4.1.429.1.8.1.1.1.4	INTEGER	read-write	Defines whether the WAN interface looks at DCD rather than DSR to determine that the physical layer is active.
INT x25wanAdmnClockSouce	1.3.6.1.4.1.429.1.8.1.1.1.5	INTEGER	read-write	Determines the source of the synchronous data clock.
INT x25wanAdmnMaxFrmSize	1.3.6.1.4.1.429.1.8.1.1.1.6	INTEGER	read-write	Determines the maximum received frame size allowed on the X.25 WAN. Default=300.
x25wanOper	1.3.6.1.4.1.429.1.8.2
x25wanOperTable	1.3.6.1.4.1.429.1.8.2.1		not-accessible
x25wanOperEntry	1.3.6.1.4.1.429.1.8.2.1.1		not-accessible
INT x25wanOperIndex	1.3.6.1.4.1.429.1.8.2.1.1.1	INTEGER	read-only
INT x25wanOperType	1.3.6.1.4.1.429.1.8.2.1.1.2	INTEGER	read-only
INT x25wanOperSpeed	1.3.6.1.4.1.429.1.8.2.1.1.3	INTEGER	read-only
INT x25wanOperLinkAvailable	1.3.6.1.4.1.429.1.8.2.1.1.4	INTEGER	read-only
INT x25wanOperClockSource	1.3.6.1.4.1.429.1.8.2.1.1.5	INTEGER	read-only
INT x25wanOperMaxFrmSize	1.3.6.1.4.1.429.1.8.2.1.1.6	INTEGER	read-only
x25wanStats	1.3.6.1.4.1.429.1.8.3
x25wanStatsTable	1.3.6.1.4.1.429.1.8.3.1		not-accessible	The x25wanStatsTable is composed of counters which allow the operator to view activity which can indicate the health of the WAN connection.
x25wanStatsEntry	1.3.6.1.4.1.429.1.8.3.1.1		not-accessible	There is one X.25 WAN status entry for each x.25 subnet installed in the NAS chassis.
INT x25wanStatsIndex	1.3.6.1.4.1.429.1.8.3.1.1.1	INTEGER	read-only	A unique value for each X25 WAN port in the NAS chassis. The value of this index matches is the entity index associated with this X25 subnet found in the USR Chassis MIB.
CTR x25wanStatsGoodFramesTxs	1.3.6.1.4.1.429.1.8.3.1.1.2	Counter	read-only	A count of the number of good frames transmitted since this entity was initialized.
CTR x25wanStatsGoodFramesRxs	1.3.6.1.4.1.429.1.8.3.1.1.3	Counter	read-only	A count of the good frames received since this entity was intitalized.
CTR x25wanStatsTxUnderruns	1.3.6.1.4.1.429.1.8.3.1.1.4	Counter	read-only	A count of the number of transmit underruns that have been seen by this entity since initialization.
CTR x25wanStatsRxOverruns	1.3.6.1.4.1.429.1.8.3.1.1.5	Counter	read-only	The number of receiver overruns detected by this entity since intitialization.
CTR x25wanStatsRxCrcErrs	1.3.6.1.4.1.429.1.8.3.1.1.6	Counter	read-only	The number of received crc errors since this entity was intitialized.
CTR x25wanStatsRxFrameNoBufs	1.3.6.1.4.1.429.1.8.3.1.1.7	Counter	read-only	The number of times this entity has recieved data without a buffer to place it into.
CTR x25wanStatsUnrecoveredRxs	1.3.6.1.4.1.429.1.8.3.1.1.8	Counter	read-only	The number of overrun frames that the entity was unable to recover.
CTR x25wanStatsRxOverflows	1.3.6.1.4.1.429.1.8.3.1.1.9	Counter	read-only	The number of receive buffer overflows seen by this entity since initialization.
CTR x25wanStatsRxAborts	1.3.6.1.4.1.429.1.8.3.1.1.10	Counter	read-only	The number of recieve frame aborts seen by this entity since initialization.
CTR x25wanStatsRxTooLongs	1.3.6.1.4.1.429.1.8.3.1.1.11	Counter	read-only	The number of frames recieved that exceeded the defined maximum receive frame size.
CTR x25wanStatsTxTooShorts	1.3.6.1.4.1.429.1.8.3.1.1.12	Counter	read-only	The number of times that the upper protocol layers attempted to transmit too small a frame.
CTR x25wanStatsRxTooShorts	1.3.6.1.4.1.429.1.8.3.1.1.13	Counter	read-only	A count of the number of frames received that were smaller than the minimum frame size.
CTR x25wanStatsTxBadPackets	1.3.6.1.4.1.429.1.8.3.1.1.14	Counter	read-only	The number of bad packets that the WAN interface received for transmission from the upper layers of the X.25 protocol stack.
CTR x25wanStatsTxRingQFulls	1.3.6.1.4.1.429.1.8.3.1.1.15	Counter	read-only	A count of the number of times the circular buffer used for transmission was full when a transmission was attempted by the upper layers of the X.25 protocol stack.
INT x25wanStatsRxRingQSize	1.3.6.1.4.1.429.1.8.3.1.1.16	INTEGER	read-only	A number that indicates the received circular queue size on the X.25 WAN.
INT x25wanStatsDSR	1.3.6.1.4.1.429.1.8.3.1.1.17	INTEGER	read-only	X.25 WAN interface DSR signal status.
INT x25wanStatsCTS	1.3.6.1.4.1.429.1.8.3.1.1.18	INTEGER	read-only	X.25 WAN interface CTS signal status.
INT x25wanStatsDCD	1.3.6.1.4.1.429.1.8.3.1.1.19	INTEGER	read-only	X.25 WAN interface DCD signal status.
x25wanTrapEna	1.3.6.1.4.1.429.1.8.4
x25wanTrapEnaTable	1.3.6.1.4.1.429.1.8.4.1		not-accessible	The x25 WAN Trap Enable table contains an entry for each manageable X.25 Subnet in the chassis. It provides a means to enable reporting of traps associated with the subnet.
x25wanTrapEnaEntry	1.3.6.1.4.1.429.1.8.4.1.1		not-accessible	There is one x25 WAN Cfg entry per x.25 subnet in the NAS chassis.
INT x25wanTrapEnaIndex	1.3.6.1.4.1.429.1.8.4.1.1.1	INTEGER	read-only	A unique value for each X.25 Subnet in the chassis. The value of this object matches the value of the index of the corresponding X.25 Subnet's entry in the entity table of the chassis MIB.
INT x25wanTrapEnaOutOfSvc	1.3.6.1.4.1.429.1.8.4.1.1.2	INTEGER	read-write	Enables generation of a trap when the WAN port status changes from Link Active to Out Of Service.
INT x25wanTrapEnaLinkActive	1.3.6.1.4.1.429.1.8.4.1.1.3	INTEGER	read-write	Enables generation of a trap when the WAN port status changes from Out Of Service to Link Active.

RFC description

A SNMP MIB extension for the X.25 Packet Layer protocol as defined in RFC 1382. This MIB defines objects for managing X.25 protocol stack operations, packet layer functions, and X.25 circuit management in network devices.

Start monitoring X.25 WAN access router / network access server (NAS) (link-type/speed/clocking config status) 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 X25W-MIB

What Is X25W-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description