CXBRI-MIB

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Category: Telephony and VoIP, Vendor: Aastra

Description: Manages Aastra BRI (Basic Rate ISDN) interface configuration, D-channel signaling, and B-channel status.

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What Is CXBRI-MIB?

CXBRI-MIB is an Aastra enterprise MIB for managing Basic Rate ISDN (BRI) interface cards, covering D-channel signaling and B-channel status on a telephony/PBX platform's ISDN line cards. It exposes a per-slot BRI interface table along with self-test result objects for I/O registers, LEDs, impedance/line testing, and transceiver register/communication tests. This MIB is oriented toward hardware-health and diagnostic monitoring: it lets an operator confirm a BRI card passed its I/O, LED, and transceiver self-tests, and inspect communication test poll results to catch a failing or degraded ISDN line card before it causes call-signaling failures. It is a vendor-specific hardware-diagnostic MIB tied to the physical BRI card design rather than to a shared IETF ISDN MIB standard. It is deployed on Aastra PBX/telephony chassis equipped with BRI line cards providing ISDN Basic Rate Access to end devices. Engineers can download the CXBRI-MIB file directly to load it into their MIB browser.

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

Aastra PBX/telephony chassis with BRI (ISDN) line cards

Monitoring Examples

An admin would walk briTable/briEntry keyed by briSlotNumberIndex to check the results of briIoRegTest, briIoLedsTest, briImpRegTest, and briTxcvrRegTest for a given BRI card slot, confirming the card passed its hardware self-tests. A failing briTxcvrComTestPollResult or briImpComTestPollResult would indicate a transceiver or impedance/line-testing communication fault on that slot, signaling a failing BRI card that may soon drop ISDN calls.

What Can Be Monitored

per-slot BRI card self-test results
I/O register/LED test status
transceiver register test status
impedance/communication test poll results

Imported Objects

From CXProduct-SMI

cxBri

OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
briTable	1.3.6.1.4.1.495.2.1.8.4.10		not-accessible	A table containing test results of an ISDN U or S/T-Interface daughter card.
briEntry	1.3.6.1.4.1.495.2.1.8.4.10.1		not-accessible	The parameters for a specific ISDN U or S/T-Interface daughter card.
INT briSlotNumberIndex	1.3.6.1.4.1.495.2.1.8.4.10.1.1	INTEGER	read-only	Indicates the row containing objects for monitoring an I/O card in the CX900 or CX950. Range of Values: 1-6 for CX900 (slot) 1-8 for CX950 (slot) Default Value: none
INT briIoRegTest	1.3.6.1.4.1.495.2.1.8.4.10.1.20	INTEGER	read-only	Indicates the result of the ISDN U or S/T-interface I/O register test. Options: failed (1): register test failed passed (2): register test passed Default Value: passed (2)
INT briIoLedsTest	1.3.6.1.4.1.495.2.1.8.4.10.1.21	INTEGER	read-only	Indicates the result of the ISDN U or S/T-interface Integrated Multiprotocol Processor (IMP) LEDs test. Options: initializationFailed (1): IMP initialization failed initializationPassed (2): IMP initialization passed Default Value: initializationPassed
INT briImpRegTest	1.3.6.1.4.1.495.2.1.8.4.10.1.22	INTEGER	read-only	Indicates the result of the ISDN U or S/T-interface Integrated Multiprotocol Processor (IMP) register test. Options: initializationFailed (1): IMP initialization failed failed (2): IMP register test failed passed (3): IMP register test passed Default Value: passed (3)
INT briImpComTestPollResult	1.3.6.1.4.1.495.2.1.8.4.10.1.23	INTEGER	read-only	Indicates the result of the ISDN U or S/T-interface IMP internal communication test while in polling mode. Options: initializationFailed (1): IMP initialization failed failed (2): IMP communication test failed in polling mode passed (3): IMP communication test passed in polling mode Default Value: passed (3)
INT briTxcvrRegTest	1.3.6.1.4.1.495.2.1.8.4.10.1.24	INTEGER	read-only	Indicates the result of the ISDN U or S/T-interface transceiver register test. Options: initializationFailed (1): IMP initialization test failed failed (2): transceiver register test failed passed (3): transceiver register test passed Default Value: passed (3)
INT briTxcvrComTestPollResult	1.3.6.1.4.1.495.2.1.8.4.10.1.25	INTEGER	read-only	Indicates the result of the ISDN U or S/T-interface transceiver internal communication test while in polling mode. Options: initializationFailed (1): IMP initialization failed failed (2): transceiver communication test failed in polling mode passed (3): transceiver communication test passed in polling mode Default Value: passed (3)

RFC description

Manages ISDN Basic Rate Interface test results, self-test configurations, and diagnostics for communication cards.

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Download CXBRI-MIB

What Is CXBRI-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description