A3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB :: a3ComSysTokenRingPortLostFrameErrors

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsA3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIBa3ComSysTokenRingPortLostFrameErrors

a3ComSysTokenRingPortLostFrameErrors

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

OID (symbolic): A3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB::a3ComSysTokenRingPortLostFrameErrors

OID (numeric): 1.3.6.1.4.1.43.29.4.13.2.1.13

Node type: OBJECT-TYPE

Type: Counter

Access: read-only

Description: This counter is incremented when a station is transmitting and its TRR timer expires. This condition denotes a condition where a transmitting station in strip mode does not receive the trailer of the frame before the TRR timer goes off.

What is a3ComSysTokenRingPortLostFrameErrors?

This counter increments when the transmitting port doesn't receive its own frame trailer before the token-release timer expires, indicating frame loss on the ring. Network engineers monitor this to detect serious ring problems such as ring breakage, excessive traffic collisions, or topology loops. A value of 3 suggests that the device transmitted frames that were lost or not properly returned by the ring.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.43.29.4.13.2.1.13
snmpwalk -v2c -c public <target> A3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB::a3ComSysTokenRingPortLostFrameErrors

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.43.29.4.13.2.1.13.1
snmpget -v2c -c public <target> A3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB::a3ComSysTokenRingPortLostFrameErrors.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::a3ComSysTokenRingPortLostFrameErrors 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
1.3.6.1.4.1.43.29.4.13.2.1.13a3ComSysTokenRingPortLostFrameErrorsA3COM-SWITCHING-SYSTEMS-TOKEN-RING-MIB