SNMP-MIB

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Organization: Nortel Networks

Last Updated: 1999-04-23

Category: SNMP Infrastructure and Standards

Description: Manages Nortel SNMP agent configuration, community access controls, and trap destination settings.

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What Is SNMP-MIB?

This SNMP-MIB is a Nortel enterprise MIB that manages the device's own SNMP agent — configuring community-based access, trap-receiver destinations, and related agent behavior — rather than describing external network hardware. It belongs to the network-management/SNMP-infrastructure category and exposes configuration data: agent type, an RMON-support flag, the source address used for outgoing SNMP traffic, and a table of configured trap receivers with address, community string, and row status. Its role in monitoring hardware/software status is foundational rather than direct: it governs which management stations receive fault/event traps and confirms the device's SNMP agent is correctly configured and RMON-capable, which underpins all other SNMP-based hardware/software monitoring on the device. It parallels standard SNMPv2-MIB/SNMP-COMMUNITY-MIB concepts with Nortel-specific naming. It is typically deployed on Nortel/Avaya switches and routers as part of baseline network-management configuration. Engineers can download the SNMP-MIB file directly to load it into their MIB browser.

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

Nortel/Avaya switch or router

Monitoring Examples

An operator reviews the nnsnmpTrapRcvrTable, indexed by nnsnmpTrapRcvrIndex, to confirm each configured nnsnmpTrapRcvrAddress and nnsnmpTrapRcvrCommunity pairing is correct and that nnsnmpTrapRcvrEntryStatus shows the row active, ensuring fault traps actually reach the intended NMS. Checking nnsnmpRmonSupported confirms whether the agent exposes RMON statistics, and nnsnmpSourceAddress reveals which interface address the device uses when originating SNMP traffic, useful when troubleshooting traps appearing from an unexpected source IP.

What Can Be Monitored

trap receiver address/community table
trap receiver row status (active/inactive)
RMON support flag
SNMP source address
agent type

Imported Objects

From NT-ENTERPRISE-DATA-MIB

ntEnterpriseDataTasmanMgmt

OBJECT-IDENTITY

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
nnsnmpMib	1.3.6.1.4.1.562.73.1.1.1.5			SNMP Management group MIBs
nnsnmpObjects	1.3.6.1.4.1.562.73.1.1.1.5.1
INT nnsnmpAgentType	1.3.6.1.4.1.562.73.1.1.1.5.1.1	INTEGER	read-only	Type of SNMP agent running on this entity.
INT nnsnmpRmonSupported	1.3.6.1.4.1.562.73.1.1.1.5.1.2	INTEGER	read-only	Indicates whether the SNMP agent supports the RMON MIB.
IP nnsnmpSourceAddress	1.3.6.1.4.1.562.73.1.1.1.5.1.3	IpAddress	read-write	Source IP address to be used on SNMP TRAPS sent by the agent.Default is ethernet 0 's IP address.Use 0.0.0.0 to unconfigure.
nnsnmpTrapRcvrTable	1.3.6.1.4.1.562.73.1.1.1.5.1.4		not-accessible	The trap receiver table lists the addresses of the network management stations that should receive trap messages from the agent. This list is used by the agent to send the traps. The snmpTrapRcvrEntryStatus parameter is used to add or delete an entry from the table. Only the entries with valid snmpTrapEntryStatus are used. A maximum of 10 entries can exist in this table at any point in time. A new entry can be created only if the values for all the columnar objects in the table are sent in the same SNMP SET request.
nnsnmpTrapRcvrEntry	1.3.6.1.4.1.562.73.1.1.1.5.1.4.1		not-accessible	A SNMP trap-receive table entry contains the information of the network management station to where the trap can be sent by the agent.
I32 nnsnmpTrapRcvrIndex	1.3.6.1.4.1.562.73.1.1.1.5.1.4.1.1	Integer32	read-only	Index into the table for display
INT nnsnmpTrapRcvrEntryStatus	1.3.6.1.4.1.562.73.1.1.1.5.1.4.1.2	INTEGER	read-write	The status of the SNMP trap-receive table entry. By default, the value is set to valid when a new entry is created. When a network management station is deleted from the table the value of the parameter is set to invalid.
IP nnsnmpTrapRcvrAddress	1.3.6.1.4.1.562.73.1.1.1.5.1.4.1.3	IpAddress	read-write	IP address of the network management station which can receive the trap from the agent. It is unique for every entry and used as the index for the SNMP trap-receive table.
STR nnsnmpTrapRcvrCommunity	1.3.6.1.4.1.562.73.1.1.1.5.1.4.1.4	DisplayString	read-write	Community string associated with the network management station receiving the trap messages. The community string is used in the trap messages.

RFC description

Nortel Networks SNMP management group MIB defining SNMP agent types and RMON support capabilities.

Start monitoring Nortel/Avaya switch or router (SNMP agent community/trap-receiver configuration) 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 SNMP-MIB

What Is SNMP-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description