Setting Up a SyncE Configuration Job

Updated on 19 Sep 2024
2 Minutes to read
Contributors

Article summary

Did you find this summary helpful?

Thank you for your feedback

SyncE takes the clock signal from the selected clock reference port and transmits it to all other ports. You also have the option to define a Secondary Clock Source on another physical port.

To set up a SyncE configuration job

Access the page Commission ▶ Jobs.
Set all common configuration job settings, as described in "Creating Configuration Jobs in GUI Mode" and in "Creating Configuration Jobs Using Data Sets".
Select SyncE in the left pane. The SyncE tab is displayed.
Complete all fields in the SyncE tab as required. For more information on specific parameters, see the table below.
Click Apply, then click Close.
Click the Refresh button to refresh the user interface.

SyncE tab (Commission ▶ Jobs)
State setting

Parameter	Description
Enable SyncE	Enables or disables the synchronous Ethernet feature. When disabled, all ports on the system operate as clock master. When enabled, the clock reference port(s) operate as clock slave (s) and all the other ports on the system operate as masters, transmitting clock signal from clock reference port. When enabled, clock status information is also displayed.

SyncE/ESMC options

Parameter	Description
Primary clock source	The port from which the Primary Reference Clock is recovered.
Secondary clock source	The port from which the Secondary Reference Clock is recovered. This parameter is optional and may be set to none if only a single reference clock is preferred.
Revertive	Enables or disables the revertive clock selection feature. When enabled, the clock selector is allowed to switch back to a higher-priority clock source that previously failed when it becomes available again When disabled, the clock selector is allowed to revert to a lower priority clock source, but only if the currently selected source becomes unavailable. In this mode, the selector cannot revert to a clock that previously failed.
Wait-to-restore delay (sec)	The system will wait for this many seconds before reverting to a clock available after a failure. Possible values: 0 to 720 (default is 10) Note: This feature applies when ESMC QL Mode is enabled.
Manual clock source	This sets the clock selector to use a specific clock source, regardless of priority. Note: The system will not switch to an invalid clock and it will not switch to a clock of inferior quality (if ESMC QL mode is enabled). If none is specified, the clock source is selected automatically.
ESMC QL mode	Enable or disable the ESMC QL mode. ESMC QL messages containing clock quality information can be sent and received only if this is enabled. If enabled, clock quality information can then be used to automatically select the best clock reference available.
ESMC forward extended TLV	ESMC messages may contain type-length-values (TLV) other than the mandatory QL TLV. These are referred to as extended TLVs. Their content is not used in the system. When enabled, extended TLVs will be forwarded from incoming SyncE ports to all outgoing SyncE ports; if not enabled, they are stripped out. Note: This feature applies when ESMC QL Mode is enabled.

© 2024 Cisco and/or its affiliates. All rights reserved.

For more information about trademarks, please visit: Cisco trademarks
For more information about legal terms, please visit: Cisco legal terms
For legal information about Accedian Skylight products, please visit: Accedian legal terms and tradmarks

Was this article helpful?

What's Next

Setting Up a System Time Configuration Job