RTM-MIB :: lastSequenceNumber

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsRTM-MIBlastSequenceNumber

lastSequenceNumber

Module: RTM-MIB

OID (symbolic): RTM-MIB::lastSequenceNumber

OID (numeric): 1.3.6.1.4.1.351.120.1.3

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: The sequence number of the last trap generated by the system. This object is used in each of the RTM Compliant trap definitions. The manager can figure out whether any trap is lost(missing) by comparing the lastSequenceNumber values received in last 2 traps.

What is lastSequenceNumber?

Reports the sequence number of the most recent trap generated by the system, and is included in each RTM-compliant trap definition. Admins compare this value across consecutive received traps to detect whether any trap was lost in transit. A gap between the lastSequenceNumber values of two consecutive traps received would tell the admin one or more traps were missed.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.351.120.1.3
snmpwalk -v2c -c public <target> RTM-MIB::lastSequenceNumber

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.351.120.1.3.1
snmpget -v2c -c public <target> RTM-MIB::lastSequenceNumber.1

Start monitoring generic SNMP-manageable network device with configurable trap forwarding (real-time trap management) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the RTM-MIB::lastSequenceNumber OID value, configure state conditions and alerts, and monitor any generic SNMP-manageable network device with configurable trap forwarding (real-time trap management) from a single console.

OID Breakdown

Upper-level ancestors (7 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
1.3.6.1.4.1.351stratacomCISCOWAN-SMI
Numeric OIDNameModule
1.3.6.1.4.1.351.120rtmRTM-MIB
1.3.6.1.4.1.351.120.1trapsConfigRTM-MIB
1.3.6.1.4.1.351.120.1.3lastSequenceNumberRTM-MIB