All MIBs › CIENA-CES-OAM-MIB › cienaCesOamLoopbackControlTx
cienaCesOamLoopbackControlTx
Module: CIENA-CES-OAM-MIB
OID (symbolic): CIENA-CES-OAM-MIB::cienaCesOamLoopbackControlTx
OID (numeric): 1.3.6.1.4.1.1271.2.3.5.1.1.1.1.5
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: A count of the number of Loopback Control OAMPDUs transmitted on this interface.
An Loopback Control OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equal to the OAM Loopback Control code.
Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
What is cienaCesOamLoopbackControlTx?
This Counter32 (frames) counts Loopback Control OAMPDUs transmitted on this interface, per its description, which are the frames the local OAM client sends to start or stop a remote loopback test on the peer. Because remote loopback is a disruptive, deliberately-initiated test that halts normal traffic on the peer, a nonzero or incrementing value here is a direct record that someone, or some script, actually issued a loopback command from this end, which is useful evidence when investigating an unexplained traffic interruption. A technician reviewing why a circuit briefly stopped passing traffic would check this counter to see if a remote loopback test was run around that time.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1271.2.3.5.1.1.1.1.5 snmpwalk -v2c -c public <target> CIENA-CES-OAM-MIB::cienaCesOamLoopbackControlTx
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1271.2.3.5.1.1.1.1.5.1 snmpget -v2c -c public <target> CIENA-CES-OAM-MIB::cienaCesOamLoopbackControlTx.1
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OID Breakdown
Upper-level ancestors (9 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 |
| 1.3.6.1.4.1.1271 | ciena | CIENA-SMI |
| 1.3.6.1.4.1.1271.2 | cienaCes | CIENA-SMI |
| 1.3.6.1.4.1.1271.2.3 | cienaCesStatistics | CIENA-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1271.2.3.5 | cienaCesOamMibModule | CIENA-CES-OAM-MIB |
| 1.3.6.1.4.1.1271.2.3.5.1 | cienaCesOamMIB | CIENA-CES-OAM-MIB |
| 1.3.6.1.4.1.1271.2.3.5.1.1 | cienaCesOamStatistics | CIENA-CES-OAM-MIB |
| 1.3.6.1.4.1.1271.2.3.5.1.1.1 | cienaCesOamStatsTable | CIENA-CES-OAM-MIB |
| 1.3.6.1.4.1.1271.2.3.5.1.1.1.1 | cienaCesOamStatsEntry | CIENA-CES-OAM-MIB |
| 1.3.6.1.4.1.1271.2.3.5.1.1.1.1.5 | cienaCesOamLoopbackControlTx | CIENA-CES-OAM-MIB |