SW-COMMON-MIB :: swL2DevAlarmNewRoot

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › SW-COMMON-MIB › swL2DevAlarmNewRoot

swL2DevAlarmNewRoot

Module: SW-COMMON-MIB

OID (symbolic): SW-COMMON-MIB::swL2DevAlarmNewRoot

OID (numeric): 1.3.6.1.4.1.326.2.20.1.2.2.2.28.2.1.2.2

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: When the device has become the new root of the Spanning Tree, this object decide whether to send a new root trap.

What is swL2DevAlarmNewRoot?

This object determines whether the switch emits a new-root trap when it becomes the new Spanning Tree root bridge. Admins enable it so unexpected root bridge elections, often a sign of misconfiguration or a topology change elsewhere, are reported automatically instead of silently changing traffic paths. Setting this to enabled(3) means that if this switch unexpectedly wins a root election after a cable change, the NMS gets notified right away.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.326.2.20.1.2.2.2.28.2.1.2.2
snmpwalk -v2c -c public <target> SW-COMMON-MIB::swL2DevAlarmNewRoot

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.326.2.20.1.2.2.2.28.2.1.2.2.1
snmpget -v2c -c public <target> SW-COMMON-MIB::swL2DevAlarmNewRoot.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.326.2.20.1.2.2.2.28.2.1.2.2.1 i <value>

Start monitoring D-Link ES2000 'Golf' series switch (Marconi-branded OEM, shared object definitions) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the SW-COMMON-MIB::swL2DevAlarmNewRoot OID value, configure state conditions and alerts, and monitor any D-Link ES2000 'Golf' series switch (Marconi-branded OEM, shared object definitions) from a single console.

OID Breakdown

Upper-level ancestors (13 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
1.3.6.1.4.1.326foreCOMMON-GOLF-MIB
1.3.6.1.4.1.326.2systemsCOMMON-GOLF-MIB
1.3.6.1.4.1.326.2.20ethernetCOMMON-GOLF-MIB
1.3.6.1.4.1.326.2.20.1edgeCOMMON-GOLF-MIB
1.3.6.1.4.1.326.2.20.1.2golfCOMMON-GOLF-MIB
1.3.6.1.4.1.326.2.20.1.2.2golfcommonCOMMON-GOLF-MIB
1.3.6.1.4.1.326.2.20.1.2.2.2fore_mgmtCOMMON-GOLF-MIB
Numeric OIDNameModule
1.3.6.1.4.1.326.2.20.1.2.2.2.28es2000MgmtSW-COMMON-MIB
1.3.6.1.4.1.326.2.20.1.2.2.2.28.2swL2MgmtSW-COMMON-MIB
1.3.6.1.4.1.326.2.20.1.2.2.2.28.2.1swL2DevMgmtSW-COMMON-MIB
1.3.6.1.4.1.326.2.20.1.2.2.2.28.2.1.2swL2DevAlarmSW-COMMON-MIB
1.3.6.1.4.1.326.2.20.1.2.2.2.28.2.1.2.2swL2DevAlarmNewRootSW-COMMON-MIB