All MIBs › ACMIB › e1LineStatus
e1LineStatus
Module: ACMIB
OID (symbolic): ACMIB::e1LineStatus
OID (numeric): 1.3.6.1.4.1.1751.2.18.2.12.1.8
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: This variable indicates the Line Status of the interface. It contains loopback, failure, re- ceived 'alarm' and transmitted 'alarm' infor- mation.
The e1LineStatus is a bit map represented as a sum, therefore, it can represent multiple failures (alarms) and a LoopbackState simultaneously.
e1NoAlarm should be set if and only if no other flag is set.
If the e1LoopbackState bit is set, the loopback in effect can be determined from the e1LoopbackConfig object.
The various bit positions are: 1: e1NoAlarm: No Alarm Present 2: e1RcvFarEndLOF: Far end LOF (a.k.a., Yellow Alarm) 4: e1XmtFarEndLOF: Near end sending LOF Indication 8: e1RcvAIS: Far end sending AIS 16: e1XmtAIS: Near end sending AIS 32: e1LossOfFrame: Near end LOF (a.k.a., Red Alarm) 64: e1LossOfSignal: Near end Loss Of Signal 128: e1LoopbackState: Near end is looped 256: e1T16AIS: E1 TS16 AIS 512: e1RcvFarEndLOMF: Far End Sending TS16 LOMF 1024: e1XmtFarEndLOMF: Near End Sending TS16 LOMF 2048: e1RcvTestCode: Near End detects a test code 4096: e1OtherFailure: any line status not defined here
What is e1LineStatus?
This OID is a bitmap integer (1–8191) that reports the current health and state of the E1 line, combining information about loopback, failures, received alarms, and transmitted alarms. Network engineers continuously monitor this to catch transmission errors, loss of frame (LOF), loss of signal (LOS), and other line troubles that require intervention. For example, a value of 32 indicates a received alarm from the remote end, signaling that the far side has detected an error or loss condition and is sending yellow alarm.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.2.12.1.8 snmpwalk -v2c -c public <target> ACMIB::e1LineStatus
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.2.12.1.8.1 snmpget -v2c -c public <target> ACMIB::e1LineStatus.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 |
| 1.3.6.1.4.1.1751.2.18.2 | equipConfig | ACMIB |
| 1.3.6.1.4.1.1751.2.18.2.12 | e1PortConfigTable | ACMIB |
| 1.3.6.1.4.1.1751.2.18.2.12.1 | e1PortConfigEntry | ACMIB |
| 1.3.6.1.4.1.1751.2.18.2.12.1.8 | e1LineStatus | ACMIB |