All MIBs › ACMIB › casBitPatternType
casBitPatternType
Module: ACMIB
OID (symbolic): ACMIB::casBitPatternType
OID (numeric): 1.3.6.1.4.1.1751.2.18.5.20.1.1.7
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: The type of bit pattern used for supervisory signaling. The value is AB when SF framing is used, ABCD when ESF framing is used for DS1. In case of E1, the value is always ABCD.
What is casBitPatternType?
This read-only OID reports which signaling bits (AB or ABCD) the hardware is using to carry supervision information on the digital trunk, determined by the underlying physical framing. Network engineers monitor this to confirm the trunk was physically activated with the correct framing standard (SF or ESF for T1, ABCD for E1), as mismatches cause signaling failures. On a T1 with ESF framing, you will see "ABCD" reported here, indicating the trunk can carry 24 timeslots of voice plus 4 supervision bits for signaling.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.5.20.1.1.7 snmpwalk -v2c -c public <target> ACMIB::casBitPatternType
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.5.20.1.1.7.1 snmpget -v2c -c public <target> ACMIB::casBitPatternType.1
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OID Breakdown
Upper-level ancestors (6 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 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1751 | lucent | ACMIB |
| 1.3.6.1.4.1.1751.2 | mibs | ACMIB |
| 1.3.6.1.4.1.1751.2.18 | acMIB | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5 | intfConfig | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5.20 | casConfig | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5.20.1 | casConfigTable | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5.20.1.1 | casConfigEntry | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5.20.1.1.7 | casBitPatternType | ACMIB |