Clock Monitoring Module Configuration Task List - H3C S9500 Series Operation Manual

Operation Manual – Clock Monitoring
H3C S9500 Series Routing Switches
I. Master mode
In this mode, the system uses the clock signals provided by the clock monitoring
module. The signals include local clock signals and clock signals derived from LPU Port.
If you have configured on the device to derive clock signals from LPU Port, these
derived signals are adopted; otherwise, local clock signals are adopted.
II. Slave mode
In this mode, the system uses line clock signals. Only when you specify a port as the
LPU Port (clock signal input port) of the device can the system derive the clock source
from the line signals received on the port and then send the clock source information to
the clock monitoring module, which then sends the information to all interface cards.
When connected to SONET/SDH switches, a switch should be configured as to work in
slave clock mode, because the SONET/SDH network clock is more precise than that of
the switch.

1.2 Clock Monitoring Module Configuration Task List

Note:
The following configurations are applicable to the S9500 series Ethernet switches
whose SRPU is installed with a clock module. For information about the SRPUs
installed with a clock module, refer to Installation Manual.
Complete these tasks to configure clock monitoring module:
Configuring Working Mode of the Clock Monitoring Module of the
SRPU
Configuring Reference Source Priority
Configuring
SSM for
Reference
Sources
Stopping the Clock Monitoring Module from Warming Up
Setting the Input Port of the Line Clock
Task
Setting the Way of Deriving SSM Level
Setting the Bit Position for Transmitting Bits Clock
Source Information
Configuring SSM Levels for the Reference Source
Activating/Deactivating SSM
1-4
Chapter 1 Clock Monitoring Configuration
Remarks
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