SONUS-ALARM-CONTACT-MIB

All MIBs › SONUS-ALARM-CONTACT-MIB

Organization: Sonus Networks, Inc.

Last Updated: 2000-08-28

Category: Sonus Networks VoIP Softswitch

Description: Monitors Sonus Networks gateway hardware alarm contact inputs for external environmental and equipment faults.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock 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.

What Is SONUS-ALARM-CONTACT-MIB?

SONUS-ALARM-CONTACT-MIB is a vendor MIB from Sonus Networks (telecom softswitch/media gateway equipment, later part of Ribbon Communications) for managing physical alarm contact inputs and outputs on gateway hardware shelves. It exposes administrative configuration for alarm relay outputs per shelf and relay index (operational state, sense polarity, activation value, start delay, cutoff behavior) and corresponding status tables reporting the current state of those alarm contacts. This is a direct hardware-status/fault-monitoring MIB: it is used to detect external equipment and environmental faults (such as door open, smoke, generic facility alarms, or connected equipment failure) wired into the gateway's alarm contact interface, complementing internal sensors with site-level fault detection. It works alongside Sonus's broader node/chassis MIBs (such as SONUS-NODE-RESOURCES-MIB) which cover internal hardware inventory and resource status, and relies on the SONUS-SMI enterprise MIB for its object identifier root. Typical deployment context is carrier and enterprise voice/media gateway sites where shelf-level physical alarm contacts feed into a centralized NOC alarm system via SNMP traps. Engineers can download the SONUS-ALARM-CONTACT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in SONUS-ALARM-CONTACT-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

Sonus Networks (Ribbon Communications) media gateway/softswitch shelf hardware

Monitoring Examples

An admin would poll sonusAlarmOutStatTable/sonusAlarmOutStatEntry, keyed by shelf and relay index, to read the live state of each configured alarm contact and compare it against the expected sonusAlarmOutAdmnSense polarity and sonusAlarmOutAdmnValue configured in sonusAlarmOutAdmnTable. A relay entry transitioning to an active alarm state (e.g., a facility door or power alarm wired to sonusAlarmOutAdmnRelayIndex) would trigger a notification under sonusAlarmManagerMIBNotifications for immediate NOC attention. The sonusAlarmOutAdmnStartDelay and sonusAlarmOutAdmnCutoff settings let operators tune how alarms are debounced and reset to avoid false positives.

What Can Be Monitored

alarm contact operational state
alarm relay activation/sense polarity
alarm start delay and cutoff timing
live alarm contact status per shelf/relay

Imported Objects

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SONUS-COMMON-MIB

sonusEventClass	OBJECT-TYPE
sonusEventDescription	OBJECT-TYPE
sonusEventLevel	OBJECT-TYPE
sonusShelfIndex	OBJECT-TYPE

From SONUS-SMI

sonusSystemMIBs

OBJECT-IDENTITY

From SONUS-TC

SonusAdminState
SonusBoolean
SonusShelfIndex

How to Use in IPNetwork Monitor

Example using sonusAlarmPortState OID:

Select a Sonus Networks (Ribbon Communications) media gateways/softswitch 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 sonusAlarmPortState into the Find box to locate it in the OID tree, then select it and click OK. The current state of the inbound alarm port. 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 an INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the value changes from whatever you observe as its normal, steady state for this installation, since which state (open or closed) counts as healthy depends on how the alarm contact is wired. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
sonusAlarmManagerMIB	1.3.6.1.4.1.2879.2.1.6			The MIB Module for Physical Alarm Contacts management.
sonusAlarmManagerMIBObjects	1.3.6.1.4.1.2879.2.1.6.1
sonusAlarmOutAdmnTable	1.3.6.1.4.1.2879.2.1.6.1.1		not-accessible
sonusAlarmOutAdmnEntry	1.3.6.1.4.1.2879.2.1.6.1.1.1		not-accessible
SON sonusAlarmOutAdmnShelfIndex	1.3.6.1.4.1.2879.2.1.6.1.1.1.1	SonusShelfIndex	read-only	Identifies the target shelf within the node.
INT sonusAlarmOutAdmnRelayIndex	1.3.6.1.4.1.2879.2.1.6.1.1.1.2	INTEGER	read-only	Identifies the target outbound relay within the shelf.
SON sonusAlarmOutAdmnOperState	1.3.6.1.4.1.2879.2.1.6.1.1.1.3	SonusAdminState	read-write	If enabled, the relay will respond to system events by opening and closing. If disabled, then it will be left in the default state of 'Clear', where clear is relative to the 'sense' assigned to the relay. The default sense is Normal, which means a closed relay is considered in the alarm state.
INT sonusAlarmOutAdmnValue	1.3.6.1.4.1.2879.2.1.6.1.1.1.4	INTEGER	read-write	Default value for the relays, either ALARM or CLEAR. Alarm contact five can be manually reconfigured. Alarm Contacts 1 thru 4 have a fixed default state of CLEAR, and cannot be manually reconfigured
INT sonusAlarmOutAdmnSense	1.3.6.1.4.1.2879.2.1.6.1.1.1.5	INTEGER	read-write	Select NORMAL if a CLOSED relay indicates an alarm condition. Select INVERTED if an OPEN relay indicates an alarm condition.
I32 sonusAlarmOutAdmnStartDelay	1.3.6.1.4.1.2879.2.1.6.1.1.1.6	Integer32	read-write	Start Delay will hold the outbound relays in reset for the time period(seconds) specified. This is intended to mitigate nuisance alarms when a shelf is first started.
INT sonusAlarmOutAdmnCutoff	1.3.6.1.4.1.2879.2.1.6.1.1.1.7	INTEGER	read-write	Cutoff will cause the outbound relay selected to be set to its alarm clear state, relative to the relay 'sense' setting. This allows the customer to disable an alarm after it has been set by some system event. Cutoff is a one shot event, which does not inhibit future additional alarms on that relay from occuring. Alarm Relays DO NOT automatically clear, and must be cleared manually with this feature.
sonusAlarmOutStatTable	1.3.6.1.4.1.2879.2.1.6.1.2		not-accessible	This table describes the current status of the outbound alarm relays
sonusAlarmOutStatEntry	1.3.6.1.4.1.2879.2.1.6.1.2.1		not-accessible
SON sonusAlarmOutStatShelfIndex	1.3.6.1.4.1.2879.2.1.6.1.2.1.1	SonusShelfIndex	read-only
INT sonusAlarmOutStatRelayIndex	1.3.6.1.4.1.2879.2.1.6.1.2.1.2	INTEGER	read-only
INT sonusAlarmOutStatStatus	1.3.6.1.4.1.2879.2.1.6.1.2.1.3	INTEGER	read-only	Indicates the operational status of the alarm relay contacts.
SON sonusAlarmOutStatStartDelay	1.3.6.1.4.1.2879.2.1.6.1.2.1.4	SonusBoolean	read-only	TRUE if the alarm contact is in Start Delay, FALSE otherwise. Start Delay is a programmable time period that when the Shelf boots, alarm events will NOT trigger the corresponding alarm contact. It is intended to mitigate nuisance alarms when a shelf is first started.
sonusAlarmInStatTable	1.3.6.1.4.1.2879.2.1.6.1.3		not-accessible	This table describes the current status of the inbound alarm ports
sonusAlarmInStatEntry	1.3.6.1.4.1.2879.2.1.6.1.3.1		not-accessible
SON sonusAlarmInStatShelfIndex	1.3.6.1.4.1.2879.2.1.6.1.3.1.1	SonusShelfIndex	read-only
I32 sonusAlarmInStatPort	1.3.6.1.4.1.2879.2.1.6.1.3.1.2	Integer32	read-only
INT sonusAlarmInStatStatus	1.3.6.1.4.1.2879.2.1.6.1.3.1.3	INTEGER	read-only	Indicates the operational status of the inbound alarm contacts.
sonusAlarmManagerMIBNotifications	1.3.6.1.4.1.2879.2.1.6.2
sonusAlarmManagerMIBNotificationsPrefix	1.3.6.1.4.1.2879.2.1.6.2.0
NTF sonusAlarmManagerInboundNotification	1.3.6.1.4.1.2879.2.1.6.2.0.1			This trap indicates that a change of state has occured on the inbound alarm port
sonusAlarmManagerMIBNotificationsObjects	1.3.6.1.4.1.2879.2.1.6.2.1
I32 sonusAlarmPortIndex	1.3.6.1.4.1.2879.2.1.6.2.1.1	Integer32	read-only	Alarm IN port which has changed state.
INT sonusAlarmPortStateEx	1.3.6.1.4.1.2879.2.1.6.2.1.2	INTEGER	read-only	The current state of the inbound alarm port.

RFC description

Physical alarm contact relay management for Sonus Networks systems, controlling external alarm output devices.

Start monitoring Sonus Networks (Ribbon Communications) media gateways/softswitches 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 SONUS-ALARM-CONTACT-MIB