Using the Centillion 50/100 ATMSpeed/155 Switch Modules and Media Dependent Adapters
3-4
893-01047-B
Parameter Descriptions
The physical type, networks timing, physical media type and speed of the ATM
ports are not configurable. They are fixed at the factory for each model type. You
can use SpeedView to enable or disable the state of an ATM port.
The loop timing, networks timing, scrambling, and physical loop parameters are
configurable, as described in this section.
Loop Timing
When loop timing is disabled, the local clock generates transmit timing. When
loop timing is enabled, timing is derived from the receive side of the port.
Network Timing
When network timing is enabled, the clock is derived from an input port and can
be distributed to any of the output ports on a module (it may not be distributed to
other modules across the backplane).
Scrambling
SONET uses a scrambling algorithm to prevent long strings of zeros or ones from
being transmitted. Most ATM equipment has scrambling enabled. Although you
can disable scrambling, the destination port must also have scrambling disabled.
Predefined Configurations
SpeedView does not offer predefined configurations for ATM. Configuration
instructions appear in Using SpeedView 3.0 for Windows.
Summary of Contents for Centillion 100
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