Specifications

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Cisco ME 3800X and ME 3600X Switch Command Reference
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Chapter 2 Cisco ME 3800X and ME 3600X Switch Cisco IOS Commands
network-clock-select mode
network-clock-select mode
To configure the Synchronous Ethernet (SyncE) input clock to determine the action to take if clock
reference with higher priority than the selected reference clock becomes available, use the
network-clock-select mode command in global configuration mode. To return to the default value, use
the no form of this command.
network-clock-select mode {nonrevert | revert}
no network-clock-select mode {nonrevert | revert}
Syntax Description
Defaults The default clock-select mode is revert.
Command Modes Global configuration
Command History
Usage Guidelines An input reference clock can be either forced or selected by an automatic selection algorithm based on
the highest priority valid input clock. In revert mode, the forces clock automatically becomes the
selected reference. In non-revertive mode, the forced clock becomes the selected reference only if the
existing reference is invalidated or made unavailable for selection.
You can use the set network-clocks privileged EXEC command for more configuration of not-revertive
mode.
Examples This example shows how to specify that if an input with higher priority becomes valid, it immediately
becomes the reference clock:
Switch(config)# network-clock-select mode revert
Switch(config)# exit
Related Commands
nonrevert Specifies that a new clock with higher priority does not immediately become
the reference clock. In this mode, the new clock becomes the reference clock
only if the current reference clock becomes invalid.
revert Specifies that a new clock with higher priority is immediately selected as the
new reference clock. This is the default.
Release Modification
12.2(52)EY This command was introduced.
Command Description
show network-clocks Displays network clock configuration.