System Timing - Alcatel-Lucent 7450 ESS-12 Configuration Manual

System Timing

When synchronous Ethernet is enabled, the operator can select an Ethernet port as a candidate for
timing reference. The timing information recovered from this port is used by the central clock.
Note: In the current release the derived timing is distributed only through other Ethernet ports.
CLI Syntax:
config>system>sync-if-timing
In the event that network timing is required for the synchronous interfaces in the router, a timing
subsystem is utilized to provide a clock to all synchronous interfaces within the system.
This section describes the commands used to configure and control the timing subsystem.
Use the CLI syntax displayed below to:
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7450 ESS OS Basic System Configuration Guide
abort
begin
commit
ref-order ref1 ref2
ref1
source-port port-id
no shutdown
ref2
source-port port-id
no shutdown
no revert
Edit Mode on page 295
Configuring Timing References on page 296
Using the Revert Command on page 297
Other Editing Commands on page 298
Forcing a Specific Reference on page 299
System Management
Page 297