H3C CR16000-F, Manual

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Contents
Configuring network synchronization ···················································· 1
About network synchronization ····································································································· 1
Clock sources ····················································································································· 1
Clock source levels ·············································································································· 1
Clock reference selection ······································································································ 2
Clock mode on a port ··········································································································· 2
Network synchronization tasks at a glance ······················································································ 3
Configuring clock reference selection ····························································································· 3
Configuring BITS clocks ·············································································································· 4
Setting an Sa bit for the SSM of BITS clocks ············································································· 4
Setting the frequency of a BITS clock ····························································································· 4
Specifying a line clock input port ··································································································· 4
Configuring automatic reference selection parameters ······································································· 5
Configuring the method for setting the SSM quality level of a clock source······································· 5
Specifying an SSM quality level for a clock source ······································································ 6
Controlling the use of SSM in automatic reference selection ························································· 6
Setting a priority for a clock source ·························································································· 6
Display and maintenance commands for network clock monitoring module ············································ 7
Network synchronization configuration examples ·············································································· 8
Example: Configuring network synchronization ·········································································· 8
Configuring synchronous Ethernet ······················································· 9
About synchronous Ethernet ········································································································ 9
Quality levels of clocks ········································································································· 9
Clock reference selection ······································································································ 9
System clock QL distribution and SyncE port input QL updating ···················································· 9
Protocols and standards ····································································································· 10
Restrictions and guidelines: synchronous Ethernet configuration ························································ 10
Configuring SyncE on an Ethernet interface ··················································································· 10
Display and maintenance commands for SyncE ············································································· 11
Synchronous Ethernet configuration examples ··············································································· 11
Example: Configuring synchronous Ethernet ··········································································· 11