All MIBs › CM-FACILITY-MIB › cmEthernetNetPortSyncEEnabled
cmEthernetNetPortSyncEEnabled
Module: CM-FACILITY-MIB
OID (symbolic): CM-FACILITY-MIB::cmEthernetNetPortSyncEEnabled
OID (numeric): 1.3.6.1.4.1.2544.1.12.4.1.7.1.81
Node type: OBJECT-TYPE
Type: TruthValue
Access: read-write
Description: This object allows to specify whether the Ethernet Network Port can be enabled/disabled for Synchronous Ethernet. This object is only applicable for Synchronous Ethernet capable ports. When enabled, on receive side -port can extract the frequency of its input signal and pass the recovered clock to the system clock -port processes the ESMC(Ethernet Synchronization Messaging Channel) and extracts the QL (when also QL enabled) -port is eligible to be selected as a system clock reference When enabled, on transmit side -port's transmit clock is locked to the system clock -port generates an ESMC to generate a QL (when also QL enabled)
When disabled, on receive side, -port does not pass the recovered clock to the system clock -port does not process the ESMC (if present) -port is not eligible to be selected as a system clock reference When disabled, on transmit side -port's output frequency may be synchronized to the system clock -port does not generate an ESMC.
What is cmEthernetNetPortSyncEEnabled?
This read-write TruthValue enables or disables Synchronous Ethernet on a capable Ethernet Network Port, which lets the port extract the frequency of its received signal, pass a recovered clock to the system clock, and process ESMC Sync Status Messages when QL mode is also enabled. Admins enable this on ports used as timing references in networks requiring frequency synchronization, such as mobile backhaul, where jitter and wander tolerances depend on a stable recovered clock. For example, an admin designating a specific network port as the primary timing source for a cell-site backhaul ring would enable cmEthernetNetPortSyncEEnabled on that port so its recovered clock can be used system-wide.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.4.1.7.1.81 snmpwalk -v2c -c public <target> CM-FACILITY-MIB::cmEthernetNetPortSyncEEnabled
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.4.1.7.1.81.1 snmpget -v2c -c public <target> CM-FACILITY-MIB::cmEthernetNetPortSyncEEnabled.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.2544.1.12.4.1.7.1.81.1 s <value>
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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 |
| 1.3.6.1.4.1.2544 | advaMIB | ADVA-MIB |
| 1.3.6.1.4.1.2544.1 | products | ADVA-MIB |
| 1.3.6.1.4.1.2544.1.12 | fsp150cm | ADVA-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.2544.1.12.4 | cmFacilityMIB | CM-FACILITY-MIB |
| 1.3.6.1.4.1.2544.1.12.4.1 | cmFacilityObjects | CM-FACILITY-MIB |
| 1.3.6.1.4.1.2544.1.12.4.1.7 | cmEthernetNetPortTable | CM-FACILITY-MIB |
| 1.3.6.1.4.1.2544.1.12.4.1.7.1 | cmEthernetNetPortEntry | CM-FACILITY-MIB |
| 1.3.6.1.4.1.2544.1.12.4.1.7.1.81 | cmEthernetNetPortSyncEEnabled | CM-FACILITY-MIB |