All MIBs › CISCO-WAN-ATM-CONN-STAT-MIB › cwacsEgrAal2InvalidOsfCells
cwacsEgrAal2InvalidOsfCells
Module: CISCO-WAN-ATM-CONN-STAT-MIB
OID (symbolic): CISCO-WAN-ATM-CONN-STAT-MIB::cwacsEgrAal2InvalidOsfCells
OID (numeric): 1.3.6.1.4.1.351.150.2.1.1.4.1.2
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The Number of AAL2 cells dropped due to invalid OSF (OffSet Field) in the egress direction.
What is cwacsEgrAal2InvalidOsfCells?
This Counter32 counts the number of AAL2 cells dropped in the egress direction due to an invalid OSF (Offset Field), the field that indicates where within a cell a CPS packet starts. A growing count means the switch is receiving or generating cells with offset values it can't use to correctly locate packet boundaries, leading to those cells being discarded. An admin seeing voice quality issues on an AAL2 trunk would check this counter to rule out cell-framing corruption as the cause.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.351.150.2.1.1.4.1.2 snmpwalk -v2c -c public <target> CISCO-WAN-ATM-CONN-STAT-MIB::cwacsEgrAal2InvalidOsfCells
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.351.150.2.1.1.4.1.2.1 snmpget -v2c -c public <target> CISCO-WAN-ATM-CONN-STAT-MIB::cwacsEgrAal2InvalidOsfCells.1
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OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.351 | stratacom | CISCOWAN-SMI |
| 1.3.6.1.4.1.351.150 | ciscoWan | CISCOWAN-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.351.150.2 | ciscoWanAtmConnStatMIB | CISCO-WAN-ATM-CONN-STAT-MIB |
| 1.3.6.1.4.1.351.150.2.1 | ciscoWanAtmConnStatMIBObjects | CISCO-WAN-ATM-CONN-STAT-MIB |
| 1.3.6.1.4.1.351.150.2.1.1 | cwacs | CISCO-WAN-ATM-CONN-STAT-MIB |
| 1.3.6.1.4.1.351.150.2.1.1.4 | cwacsExtStatsTable | CISCO-WAN-ATM-CONN-STAT-MIB |
| 1.3.6.1.4.1.351.150.2.1.1.4.1 | cwacsExtStatsEntry | CISCO-WAN-ATM-CONN-STAT-MIB |
| 1.3.6.1.4.1.351.150.2.1.1.4.1.2 | cwacsEgrAal2InvalidOsfCells | CISCO-WAN-ATM-CONN-STAT-MIB |