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NE20E-S2 V800R010C10SPC500 Configuration Guide - System Management 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - System Management
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Licensing Requirements and Limitations for Clock Synchronization--S2E

Licensing Requirements and Limitations for Clock Synchronization--S2E

Licensing Requirements

This feature is a basic feature and is not under license control.

Restrictions and Guidelines




The O/E converter module does not support SyncE or PTP time synchronization.

Do not deploy the clock or time source on the interface inserted with the O/E converter module during clock or time topology planning. Directly use the optical module or use the electrical interface.

The requirement for frequency/time synchronization performance cannot be met.

The clock synchronization solution for virtual access networks supports only physical layer clock synchronization and 1588v2 time synchronization.



In case of 2M ring without tracing source, configure the output actions for the BITS interface (clock bits { bits0 | bits1 | bits2 } lti-action-2mbps { send-dnu | send-ais }). This works only when the BITS signal type is set to 2Mbps.


Only 2Mbps signals are valid for BITS port output. Other signal types are invalid.

The function of frequency offset-triggered clock source switching can be enabled only after frequency offset detection has been configured.


Time synchronization is affected.

The 10GE interfaces on the CR2D00L2XF11, CR2D0L2XFH11 subcard do not support hop-by-hop 1588 for frequency synchronization. It must be used together with SyncE.

Do not use the CR2D00L2XF11, CR2D0L2XFH11 subcard to configure hop-by-hop 1588 frequency synchronization. Replace them with the corresponding board for PTP frequency synchronization.

Note: CR2D00L2XF12 can take place of CR2D00L2XF11, CR2D0L2XFH11.

1588+SyncE is recommended.

Hop-by-hop 1588 frequency synchronization is not supported.

Updated: 2019-01-02

Document ID: EDOC1100055400

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