A3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB :: a3ComSysTokenRingPortRemoves

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsA3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIBa3ComSysTokenRingPortRemoves

a3ComSysTokenRingPortRemoves

Module: A3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB

OID (symbolic): A3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB::a3ComSysTokenRingPortRemoves

OID (numeric): 1.3.6.1.4.1.43.29.4.13.2.1.21

Node type: OBJECT-TYPE

Type: Counter

Access: read-only

Description: The number of times the interface has received a Remove Ring Station MAC frame request. When this frame is received the interface will enter the close state.

What is a3ComSysTokenRingPortRemoves?

Counts how many times the interface received a Remove Ring Station MAC frame request, which forces the port into a closed state. This metric helps operators detect if a device is being repeatedly kicked off the ring by other stations or network issues. Example: a value of 12 suggests the port has been removed from the ring twelve times, indicating potential ring instability.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.43.29.4.13.2.1.21
snmpwalk -v2c -c public <target> A3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB::a3ComSysTokenRingPortRemoves

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.43.29.4.13.2.1.21.1
snmpget -v2c -c public <target> A3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB::a3ComSysTokenRingPortRemoves.1

Start monitoring 3Com SuperStack switches (legacy, Token Ring) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the A3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB::a3ComSysTokenRingPortRemoves OID value, configure state conditions and alerts, and monitor any 3Com SuperStack switches (legacy, Token Ring) from a single console.

OID Breakdown

Upper-level ancestors (12 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
1.3.6.1.4.1.43a3ComA3COM-BRIDGE-R3-MIB
1.3.6.1.4.1.43.29switchingSystemsMibsA3COM-SWITCHING-SYSTEMS-BRIDGE-MIB
1.3.6.1.4.1.43.29.4a3ComSwitchingSystemsMibA3COM-SWITCHING-SYSTEMS-BRIDGE-MIB
1.3.6.1.4.1.43.29.4.13a3ComSysTokenRingPortA3COM-SWITCHING-SYSTEMS-MIB
1.3.6.1.4.1.43.29.4.13.2a3ComSysTokenRingPortTableA3COM-SWITCHING-SYSTEMS-MIB
1.3.6.1.4.1.43.29.4.13.2.1a3ComSysTokenRingPortEntryA3COM-SWITCHING-SYSTEMS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.43.29.4.13.2.1.21a3ComSysTokenRingPortRemovesA3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB