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System Command Reference
Parameters
source-port — Configure the source port for the first timing reference.
revert
Syntax
[no] revert
Context
config>system>sync-if-timing
Description
This command allows the clock to revert to a higher priority reference if the current reference goes
offline or becomes unstable. When the failed r eference becomes operational, it is eligible for
selection. When the mode is non-revertive, a failed clock source is not selected again.
Default
no revert
source-bits
Syntax
source-bits slot/mda
no source-bits
Context
config>system>sync-if-timing>ref1
config>system>sync-if-timing>ref2
Description
This comand configures the source bits for the first (ref1) or second (ref2) timing reference.
Parameters
slot/mda — Specifies the chassis slot and MDA to be used as one of the two timing reference sources
source-port
Syntax
source-port port-id
no source-port
Context
config>system>sync-if-timing>ref1
config>system>sync-if-timing>ref2
Description
This command configures the source port for timing reference ref1 or ref2. If the port is unavailable
or the link is down, then the reference sources are re-evaluated according to the reference order
configured in the ref-order command.
On a channelized interface a T-1 or an E-1 can be specified as the source-port for either ref1 or ref2 .
The only type of T-1 or E-1 that can be used as a reference is one that has adaptive timing.
The timing reference for ref1 and ref2 must be specified for ports in the following chassis slots:
Page 330
Values
port-id
in the system timing subsystem.
Values
slot:
1
mda:
1 — 12
7710 SR OS Basic System Configuration Guide
slot/mda/port
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