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Ports
Request Switch of Active to Working
The request or manual switch of active to working command switches the active line back from
the protection line to the working line unless a request of equal or higher priority is already in
effect. If the active line is already on the working line, no action takes place.
Forced Switching of Active to Protection
The forced switch of active to protection command switches the active line to the protection line
unless a request of equal or higher priority is already in effect. When the forced switch of working
to protection command is in effect, it may be overridden either by a lockout of protection or by
detecting a signal failure on the protection line. If the active line is already on the protection line,
no action takes place.
Forced Switch of Active to Working
The forced switch of active to working command switches the active line back from the protection
line to the working unless a request of equal or higher priority is already in effect.
Exercise Command
The exercise command is only supported in the bi-directional mode of the 1+1 architecture. The
exercise command is specified in the tools>perform>aps>force>exercise context and exercises the
protection line by sending an exercise request over the protection line to the tail-end and expecting
a reverse request response back. The switch is not actually completed during the exercise routine.
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7710 SR OS Interface Configuration Guide
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