Network Synchronization - Nokia 7210 Configuration Manual

7210 SAS-M, T, R6, R12, Mxp, Sx, S Basic System
Configuration Guide

6.5 Network Synchronization

Note: See the information in this section and refer to the 7210 SAS OS Software Release
Notes 11.0Rx for information about network synchronization options supported on each
7210 SAS platform.
This section describes the network synchronization capabilities available
on7210 SAS platforms. These capabilities involve multiple approaches to network
timing, including Synchronous Ethernet, PTP/1588v2, adaptive timing, and others.
These features address barriers to entry as follows:
Note: Synchronous Ethernet and IEEE1588v2 PTP are not supported on virtual chassis
(VCs).
Network synchronization is commonly distributed in a hierarchical master-slave
topology at the physical layer, as shown in
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• If the active and standby CPM are not synchronized for some reason, users can
manually synchronize the standby CPM by running the admin redundancy
synchronize boot-env CLI command, and rebooting the standby CPM by
running the admin reboot standby command.
• provide synchronization quality required by mobile networks, such as radio
operations and circuit emulation services (CES) transport
• augment and potentially replace the existing (SONET/SDH) timing infrastructure
and deliver high quality network timing for time-sensitive wireline applications
Use subject to Terms available at: www.nokia.com
Figure
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