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Alcatel-Lucent 7210 SAS M Configuration Guide

Alcatel-Lucent 7210 SAS M
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System Management
7210 SAS M, T, X, R6 Basic System Configuration Guide Page 215
Network Synchronization
This section describes network synchronization capabilities available on 7210 SAS platforms.
These capabilities involve multiple approaches to network timing; namely Synchronous Ethernet,
PTP/1588v2, adaptive timing, and others. These features address barriers to entry by:
• Providing synchronization quality required by the mobile space; such as radio operations
and circuit emulation services (CES) transport.
• Augmenting and potentially replacing the existing (SONET/SDH) timing infrastructure
and delivering high quality network timing for time sensitive applications in the wireline
space.
Note: Network synchronization options are available on 7210 SAS-M, 7210 SAS-T, 7210 SAS-X
and 7210 SAS-R6 platforms. The available options on different 7210 platforms differ. Please read
the section below and the release notes to know what options are supported on different 7210
platforms.
Network synchronization is commonly distributed in a hierarchical master-slave topology at the
physical layer as shown in Figure 14.
OSSG287
ST 2
ST 3 ST 3 ST 3 ST 3 ST 3
ST 2
Primary Reference Clock
Stratum 1
Gateway
Class 1 or 2 CO
ST 4
ST 4 ST 4ST 4 ST 4 ST 4 ST 4
Stratum 2
Class 2 or 3
Central Office
Stratum 3
Class 4 or 5
Toll/End Office
Stratum 4
Customer
Prem
Primary Reference
Secondary Reference

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Alcatel-Lucent 7210 SAS M Specifications

General IconGeneral
BrandAlcatel-Lucent
Model7210 SAS M
CategorySwitch
LanguageEnglish

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