XYLAN-DS1-MIB

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Category: Xylan OmniSwitch

Description: Monitors Xylan OmniSwitch DS1/T1 interface framing, line coding, and performance monitoring counters.

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What Is XYLAN-DS1-MIB?

XYLAN-DS1-MIB is a Xylan OmniSwitch-specific module covering the DS1/T1 physical interfaces available on those switches, addressing framing format, line-coding, and clocking configuration alongside performance monitoring. It exposes the classic T1 data categories: interface configuration (framing type, line build-out, loopback mode) and interval-based performance counters such as errored seconds, severely errored seconds, and unavailable seconds. Its monitoring role is to reveal the physical-layer health of DS1 trunks feeding the switch -- rising error-second counts or unavailable-seconds intervals point to a degrading T1 circuit, bad framing mismatch, or carrier-side fault, well before it manifests as a full outage. It closely parallels the structure of the standard IETF DS1 MIB (RFC 1406/2495), effectively acting as a Xylan-specific counterpart or extension for those same T1 interface statistics. It is used on OmniSwitch platforms that terminate leased-line T1/DS1 circuits, typically monitored by carrier or enterprise WAN operations teams. Engineers can download the XYLAN-DS1-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in XYLAN-DS1-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

Xylan OmniSwitch LAN switch (DS1/T1 interface module)

Monitoring Examples

No sample object names were provided for this module, so a concrete polling example cannot be grounded in real object names; based on the short description, an admin would likely poll DS1 interval error-second and unavailable-second counters per port to detect a degrading T1 circuit, and check the framing/line-coding configuration objects when a newly provisioned line fails to synchronize.

What Can Be Monitored

DS1/T1 framing and line-coding configuration
errored seconds
severely errored seconds
unavailable seconds
loopback status

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
TimeTicks

From RFC1213-MIB

DisplayString

From XYLAN-BASE-MIB

xylanPportArch

OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
dsx1Port	1.3.6.1.4.1.800.2.11.1
dsx1PortConfigTable	1.3.6.1.4.1.800.2.11.1.1		not-accessible	A table of Dsx1 physical layer status and parameter information.
dsx1PortConfigEntry	1.3.6.1.4.1.800.2.11.1.1.1		not-accessible	An entry in the table, containing information about the physical layer of a Dsx1 interface.
INT dsx1PortConfigSlotIndex	1.3.6.1.4.1.800.2.11.1.1.1.1	INTEGER	read-only	A unique value which identifies this HSM board slot.
INT dsx1PortConfigPortIndex	1.3.6.1.4.1.800.2.11.1.1.1.2	INTEGER	read-only	A unique value which identifies this port.
INT dsx1PortConfigIfType	1.3.6.1.4.1.800.2.11.1.1.1.3	INTEGER	read-only	The type of interface.
INT dsx1PortFdlRole	1.3.6.1.4.1.800.2.11.1.1.1.4	INTEGER	read-write	Indicates Facility Data Link port role of this port. If the port role is network and fdlMode is set to AT&T 54016, then this port periodically sends AT&T performance requests to CI.
INT dsx1PortNfasAlign	1.3.6.1.4.1.800.2.11.1.1.1.5	INTEGER	read-write	This object indicates if framing criterion is based on bit 2 of Time Slot 0 NOT-FAS. This object only applies to E1.
INT dsx1PortConfigYelAlarmDetectEnable	1.3.6.1.4.1.800.2.11.1.1.1.6	INTEGER	read-write	This object indicates whether Yellow Alarm should be detected.
dsx1PortStatsTable	1.3.6.1.4.1.800.2.11.1.2		not-accessible	A table of Dsx1 physical port statistics.
dsx1PortStatsEntry	1.3.6.1.4.1.800.2.11.1.2.1		not-accessible	An entry in the table, containing information about the physical port statistics of a Dsx1 interface.
INT dsx1PortStatsSlotIndex	1.3.6.1.4.1.800.2.11.1.2.1.1	INTEGER	read-only	A unique value which identifies this HSM board slot.
INT dsx1PortStatsPortIndex	1.3.6.1.4.1.800.2.11.1.2.1.2	INTEGER	read-only	A unique value which identifies this port.
CTR dsx1PortStatsLossOfSignal	1.3.6.1.4.1.800.2.11.1.2.1.3	Counter	read-only	Total number of Loss of Signals that have been detected on this port.
CTR dsx1PortStatsOutOfFrame	1.3.6.1.4.1.800.2.11.1.2.1.4	Counter	read-only	Total number of Out of Frames that have been detected on this port.
CTR dsx1PortStatsRedAlarmEvent	1.3.6.1.4.1.800.2.11.1.2.1.5	Counter	read-only	Total number of Red Alarm events that have been detected on this port.
CTR dsx1PortStatsYellowAlarmEvent	1.3.6.1.4.1.800.2.11.1.2.1.6	Counter	read-only	Total number of Yellow Alarm events that have been detected on this port. This object applies to T1 port only.
CTR dsx1PortStatsSquelchAlarmEvent	1.3.6.1.4.1.800.2.11.1.2.1.7	Counter	read-only	Total number of Squelch Alarm events that have been detected on this port.
CTR dsx1PortStatsBipolarVioEvent	1.3.6.1.4.1.800.2.11.1.2.1.8	Counter	read-only	Total number of Bipolar Violation events that have been detected on this port.
CTR dsx1PortStatsAISEvent	1.3.6.1.4.1.800.2.11.1.2.1.9	Counter	read-only	Total number of AIS events that have been detected on this port.
CTR dsx1PortStatsCrcErrorEvent	1.3.6.1.4.1.800.2.11.1.2.1.10	Counter	read-only	Total number of ESF CRC-6 Error events for T1 or CRC-4 Error Events for E1 that have been detected on this port.
CTR dsx1PortStatsOutOfSubMultiFrame	1.3.6.1.4.1.800.2.11.1.2.1.11	Counter	read-only	Total number of out of sub-multiframe events that have been detected on this port. This object only applies to E1 port.
CTR dsx1PortStatsOutOfTs16MultiFrame	1.3.6.1.4.1.800.2.11.1.2.1.12	Counter	read-only	Total number of out of TS 16 multiframe events that have been detected on this port. This object only applies to E1 port.
CTR dsx1PortStatsRemFrameAlarm	1.3.6.1.4.1.800.2.11.1.2.1.13	Counter	read-only	Total number of Remote Frame Alarm events that have been detected on this port. This object only applies to E1 port.
CTR dsx1PortStatsRemMultiFrameAlarm	1.3.6.1.4.1.800.2.11.1.2.1.14	Counter	read-only	Total number of Remote MultifFame Alarm events that have been detected on this port. This object only applies to E1 port.
CTR dsx1PortStatsFarEndBlkError	1.3.6.1.4.1.800.2.11.1.2.1.15	Counter	read-only	Total number of Far End Block Error events that have been detected on this port. This object only applies to E1 port.
CTR dsx1PortStatsFramingBitError	1.3.6.1.4.1.800.2.11.1.2.1.16	Counter	read-only	Total number of Framing Bit Error events that have been detected on this port.

RFC description

Alcatel Xylan DS1 physical port MIB for T1/E1 interface configuration and monitoring.

Start monitoring Xylan OmniSwitch LAN switch, DS1/T1 interface module (framing/errored-second/unavailable-second 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 XYLAN-DS1-MIB

What Is XYLAN-DS1-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description