TN-CES-MIB :: tnCesProtocolUnderrunFixed

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › TN-CES-MIB › tnCesProtocolUnderrunFixed

tnCesProtocolUnderrunFixed

Module: TN-CES-MIB

OID (symbolic): TN-CES-MIB::tnCesProtocolUnderrunFixed

OID (numeric): 1.3.6.1.4.1.868.2.5.60.1.1.2

Node type: OBJECT-TYPE

Type: TruthValue

Access: read-write

Description: Determins the underrun value in a TDM timeslot when no data was available in the logical link jitter buffer. When true, use the fixed value specified by tnCesProtocolUnderrunValue. When false, use the last value sent on the timeslot.

What is tnCesProtocolUnderrunFixed?

Controls what a TDM timeslot outputs when the logical link's jitter buffer runs dry and no packet data has arrived in time. Set to true to insert the fixed filler byte from tnCesProtocolUnderrunValue (predictable but can produce a click), or false to repeat the last good sample instead, which usually sounds smoother during brief underruns.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.868.2.5.60.1.1.2
snmpwalk -v2c -c public <target> TN-CES-MIB::tnCesProtocolUnderrunFixed

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.868.2.5.60.1.1.2.1
snmpget -v2c -c public <target> TN-CES-MIB::tnCesProtocolUnderrunFixed.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.868.2.5.60.1.1.2.1 s <value>

Start monitoring Transition Networks media converter/NID, Circuit Emulation Service device (clock-recovery/jitter-buffer status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the TN-CES-MIB::tnCesProtocolUnderrunFixed OID value, configure state conditions and alerts, and monitor any Transition Networks media converter/NID, Circuit Emulation Service device (clock-recovery/jitter-buffer 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
1.3.6.1.4.1.868transitionTRANSITION-SMI
1.3.6.1.4.1.868.2productsTRANSITION-SMI
1.3.6.1.4.1.868.2.5tnProductsTRANSITION-SMI
Numeric OIDNameModule
1.3.6.1.4.1.868.2.5.60tnCesMIBTN-CES-MIB
1.3.6.1.4.1.868.2.5.60.1tnCesObjectsTN-CES-MIB
1.3.6.1.4.1.868.2.5.60.1.1tnCesProtocolTN-CES-MIB
1.3.6.1.4.1.868.2.5.60.1.1.2tnCesProtocolUnderrunFixedTN-CES-MIB