
Configuring Line Services
5-10 115391-A Rev. A
With this parameter set to Internal, the BayStream platform you are configuring
supplies the required timing signals. If you set the clock to Internal, set the
internal clock speed as described in the section “Setting the Internal Clock
Speed.”
You can set the clock source for the interface.
Setting the External Clock Speed
The External Clock Speed parameter sets the clock speed of an externally
supplied clock when the Clock Source parameter is set to External. You cannot
set this parameter when the Clock Source parameter is set to Internal.
By default, the external clock speed is 64102 bits/s. Set the clock speed for the
external clock to the data transmission rate that most closely corresponds to the
speed of the external clock. You can set the external clock to a value from 1200
through 6000000 bits/s.
Some routing protocol software uses this parameter value for route selection. If
you configure protocol prioritization, the BayStream software uses this parameter
to calculate line delay. See Enhancing Performance for information about
protocol prioritization, latency, and queue depth.
You can set the external clock speed for the interface.
Setting the Internal Clock Speed
The Internal Clock Speed parameter sets the clock speed of an internally supplied
clock when the Clock Source parameter is set to Internal. You cannot set this
parameter when the Clock Source parameter is set to External.
By default, the internal clock speed is 64 Kb/s. Set the clock speed for the internal
clock to the desired data transmission rate across the synchronous line.
You can set the internal clock to
• 1200, 2400, 4800, 7200, 9600, 19200, 32000, or 38400 B
Site Manager: Clock Source parameter: page A-57
Site Manager: External Clock Speed parameter: page A-69
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