All MIBs › CXPCM-MIB › pcmSapTxUnderrun
pcmSapTxUnderrun
Module: CXPCM-MIB
OID (symbolic): CXPCM-MIB::pcmSapTxUnderrun
OID (numeric): 1.3.6.1.4.1.495.2.1.6.63.40.1.65
Node type: OBJECT-TYPE
Type: Counter
Access: read-only
Description: Indicates the number of times that the transmitter FIFO has been full.
Range of Values: 0-4, 294, 967, 295
Default Value: none
What is pcmSapTxUnderrun?
This counter tracks how many times the transmitter FIFO buffer for this channel became full. Despite its name, per the source description it counts transmitter FIFO-full events, which admins use to detect transmit-side buffering problems that can degrade outbound call audio quality. A high count here alongside active calls would suggest the transmit path is struggling to keep up with voice data delivery.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.495.2.1.6.63.40.1.65 snmpwalk -v2c -c public <target> CXPCM-MIB::pcmSapTxUnderrun
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.495.2.1.6.63.40.1.65.1 snmpget -v2c -c public <target> CXPCM-MIB::pcmSapTxUnderrun.1
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OID Breakdown
Upper-level ancestors (11 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.495 | memotec | MEMOTEC-SMI |
| 1.3.6.1.4.1.495.2 | memotecProducts | MEMOTEC-SMI |
| 1.3.6.1.4.1.495.2.1 | cxProduct | MEMOTEC-SMI |
| 1.3.6.1.4.1.495.2.1.6 | cxApplication | CXProduct-SMI |
| 1.3.6.1.4.1.495.2.1.6.63 | cxPCM | CXProduct-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.495.2.1.6.63.40 | pcmSapTable | CXPCM-MIB |
| 1.3.6.1.4.1.495.2.1.6.63.40.1 | pcmSapEntry | CXPCM-MIB |
| 1.3.6.1.4.1.495.2.1.6.63.40.1.65 | pcmSapTxUnderrun | CXPCM-MIB |