SL-L2TOPOLOGY-MIB :: topologyL2LinkChange

MIB Reference — IPNetwork Monitor · Updated October 02, 2026

All MIBs › SL-L2TOPOLOGY-MIB › topologyL2LinkChange

topologyL2LinkChange

Module: SL-L2TOPOLOGY-MIB

OID (symbolic): SL-L2TOPOLOGY-MIB::topologyL2LinkChange

OID (numeric): 1.3.6.1.4.1.4515.1.3.10.2.3

Node type: NOTIFICATION-TYPE

Description: A topologyL2LinkChange trap is sent when the content of an instance TopologyL2LinkEntry is changed.

Examples

Send this trap to an SNMP manager — replace <manager> with the IP or hostname of your monitoring server (SNMPv2c):

snmptrap -v2c -c public <manager> '' SL-L2TOPOLOGY-MIB::topologyL2LinkChange
snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.4515.1.3.10.2.3

Listen for incoming traps on the manager host (-f keeps it in the foreground, -Lo prints to stdout — useful for testing):

snmptrapd -f -Lo -c /dev/null authCommunity log public

Example snmptrapd log entry:

zoo11-linux.zoo [UDP: [192.168.30.111]:61843->[192.168.30.10]:162]:
  DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (203053971) 23 days, 12:02:19.71
  SNMPv2-MIB::snmpTrapOID.0 = OID: SL-L2TOPOLOGY-MIB::topologyL2LinkChange

Start monitoring Smartoptics SiteLight optical transport equipment (Layer-2 topology discovery status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the SL-L2TOPOLOGY-MIB::topologyL2LinkChange OID value, configure state conditions and alerts, and monitor any Smartoptics SiteLight optical transport equipment (Layer-2 topology discovery status) from a single console.

OID Breakdown

Upper-level ancestors (9 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
1.3.6.1.4.1.4515smartopticsSL-NE-MIB
1.3.6.1.4.1.4515.1sitelightSL-NE-MIB
1.3.6.1.4.1.4515.1.3slMainSL-MAIN-MIB
Numeric OIDNameModule
1.3.6.1.4.1.4515.1.3.10slL2TopologySL-L2TOPOLOGY-MIB
1.3.6.1.4.1.4515.1.3.10.2topologyL2TrapsSL-L2TOPOLOGY-MIB
1.3.6.1.4.1.4515.1.3.10.2.3topologyL2LinkChangeSL-L2TOPOLOGY-MIB