7210 SAS-MXP, R6, R12, S, SX, T BASIC SYSTEM
CONFIGURATION GUIDE RELEASE 22.9.R1
System management
config>system>sync-if-timing>ref1# no shutdown
config>system>sync-if-timing>ref1# exit
config>system>sync-if-timing# ref2
config>system>sync-if-timing>ref2# source-port 1/1/2
config>system>sync-if-timing>ref2# no shutdown
config>system>sync-if-timing>ref2# exit
config>system>sync-if-timing>commit
Example: Configuration output of the timing reference parameters
*7210-SAS>config>system>sync-if-timing#info detail
----------------------------------------------
ref-order ref1 ref2
ref1
source-port 1/1/1
no shutdown
exit
ref2
source-port 1/1/2
no shutdown
exit
no revert
----------------------------------------------
6.16.4 Using the revert command
The revert command allows the clock to revert to a higher-priority reference if the current reference goes
offline or becomes unstable.
If revertive switching is enabled, the highest-priority valid timing reference is used. If a reference with a
higher priority becomes valid, a switchover to that reference is initiated. If a failure on the current reference
occurs, the next highest reference takes over.
If non-revertive switching is enabled, the active reference always remains selected while it is valid, even
if a higher priority reference becomes available. If the active reference becomes invalid, a reference
switchover to a valid reference with the highest priority is initiated. The failed reference is eligible for
selection when it becomes operational.
Use the following syntax to revert the clock to a higher priority reference.
config>system>sync-if-timing
revert
6.16.5 Other editing commands
Other editing commands are:
• commit
Saves changes made to the timing references during a session. Modifications are not persistent across
system boots unless this command is entered.
• abort
Discards changes that have been made to the timing references during a session.
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