CTRMONXT-MIB :: ctDiscoveryNMIndex

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › CTRMONXT-MIB › ctDiscoveryNMIndex

ctDiscoveryNMIndex

Module: CTRMONXT-MIB

OID (symbolic): CTRMONXT-MIB::ctDiscoveryNMIndex

OID (numeric): 1.3.6.1.4.1.52.4.3.2.20.4.1.3

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: An index that defines the set of collected ctDiscoveryNMEntries of which this entry is part. The set of MAC/Network associations identified by a particular value of this index is associated with the ctDiscoveryControlEntry with the same index.

What is ctDiscoveryNMIndex?

This integer is the index value that groups a set of discovered MAC/Network association entries together and ties them to a specific discovery control entry sharing the same index. An admin uses it to know which discovery run or monitored segment a given association row belongs to, since the agent can track discovery separately per control entry. For instance, if discovery control entry 3 was configured to monitor a particular VLAN's uplink, all NM entries carrying ctDiscoveryNMIndex value 3 came from that specific monitored point.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.3.2.20.4.1.3
snmpwalk -v2c -c public <target> CTRMONXT-MIB::ctDiscoveryNMIndex

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.3.2.20.4.1.3.1
snmpget -v2c -c public <target> CTRMONXT-MIB::ctDiscoveryNMIndex.1

Start monitoring Cabletron/Enterasys switch or RMON probe (extended RMON) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTRMONXT-MIB::ctDiscoveryNMIndex OID value, configure state conditions and alerts, and monitor any Cabletron/Enterasys switch or RMON probe (extended RMON) from a single console.

OID Breakdown

Upper-level ancestors (10 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.52cabletronCabletron-MIB
1.3.6.1.4.1.52.4mibsCT-PRIORITY-QUEUING
1.3.6.1.4.1.52.4.3ctronExtnCTRON-MIB-NAMES
1.3.6.1.4.1.52.4.3.2ctronRmonCTRON-MIB-NAMES
Numeric OIDNameModule
1.3.6.1.4.1.52.4.3.2.20ctDiscoveryCTRMONXT-MIB
1.3.6.1.4.1.52.4.3.2.20.4ctDiscoveryNMTableCTRMONXT-MIB
1.3.6.1.4.1.52.4.3.2.20.4.1ctDiscoveryNMEntryCTRMONXT-MIB
1.3.6.1.4.1.52.4.3.2.20.4.1.3ctDiscoveryNMIndexCTRMONXT-MIB