Synchronous Ethernet (Synce) - FibroLAN Falcon Gen-3 M-Class User Manual

Falcon M-Class | User Guide
4.16

Synchronous Ethernet (SyncE)

Overview
This section allows the user to inspect and configure the current SyncE port settings.
SyncE is used to make a Ethernet network 'clock frequency' synchronized.
Mobile network operators have started to deploy 4GLTE networks
Ethernet has become the logical choice for mobile backhaul.
These operators would like to deploy voice over Ethernet.
Ethernet networks must provide timing and synchronization in order to support mobile voice.
The µFalcon-MX and Falcon-MX devices are offered with complete precision timing support based
on Synchronous Ethernet and 1588-2008 (PTP) for LTE mobile backhaul applications.
The aim of Synchronous Ethernet is to provide a synchronous signal to network resources that may
need such frequency synchronization signal.
SyncE was standardized by the ITU-T and supports the following recommendations:
ITU-T G8261 standard that defines aspects regarding the architecture and performance of SyncE
networks
ITU-T G8262 standard which specifies SyncE slave clocks.
ITU-T G8264 standard that describes the specifications of Ethernet Synchronization Messaging
Channel (ESMC)
In Synchronous mode of operation, the Synchronous Ethernet interface processes the SSM
(Synchronization Status Messages) and recovers the clock quality level information.
The ESMC channel is a logical communication channel which transmits SSM information, that is the
quality level of the transmitting synchronous Ethernet equipment clock
When a Synchronous Ethernet port is selected, the SSM are transmitted through this port,
indicating the quality level of the clock it is able to drive. The messages are received (if the other
remote unit supports SyncE) with the quality level of the transmitting clock.
The remote end unit receiving the messages on its configured Synchronous Ethernet port extracts
the clock quality level and transmits it to the Clock Master Unit.
The Clock Master Unit receives the SSM data from many Synchronous Ethernet ports and
establishes the clock sources. The device internal state logic (clock selector) monitors all reference
clocks and automatically selects the best available reference clock based on configured priority and
revertive priorities.
Note:Refer to section
"Fibrolan Falcon Products Matrix"2016
units support this subject
" to find out which Fibrolan
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