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Configuring APS
158 Avidia System Configuration and Management User Manual
CONFIGURING APS
Avidia systems use Automatic Protection Switching (APS) to switch ATM traffic from the main
SONET channel (the working channel) to a secondary SONET channel (the protection channel)
when a failure occurs. This redundancy enables service to continue despite failures on the
working SONET channel. See “Automatic Protection Switching” on page 33 for an explanation
of how APS works.
You configure APS from the ::aps=> prompt. From the ::root=> prompt, type the
following command then press to display the ::aps=> prompt:
configuration aps
Configuring APS
From the ::aps=> prompt type the set command in the following format, then press .
set <slot> [-enable (on|off)] [-mode (autonorev|norev|rev)]
[-wtr <secs>] [-trapenable (on|off)]
Parameters
<slot>
The slot number containing the OC3 card for which you want to configure APS.
[-enable (on|off)]
Enables or disables APS. Type -enable on to enable APS. Type -enable off to
disable APS.
[-mode (autonorev|norev|rev)]
Sets the APS mode.
• autonorev (non revertive auto switch)
—once traffic has switched to the protection
channel it will automatically switch back to the working channel when the system
detects an error on the protection channel and the failure on the working channel has
been cleared.
• norev (non revertive manual)
—once traffic has switched to the protection channel it
will not automatically switch back to the working channel when the failure on that
channel has been cleared (this is the default).
• rev (revertive)
—once traffic has switched to the protection channel, it will
automatically switch back to the working channel when the failure on the working
channel has been cleared for a user-specified amount of time.
ENTER
ENTER