Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 989

aps;
}
member-interface-type {
atm {
member-interface-speed oc3;
}
}
}
unit 0 {
vci 100;
oam-period 3;
family inet {
address 1.0.0.1/30;
}
}
unit 1 {
vci 200;
oam-period 3;
family inet {
address 2.0.0.1/30;
}
}
}
Viewing the APS Container Interface Configuration
You can use the following
configuration:
show aps
show aps extensive
show interfaces cin extensive
show interfaces at-fpc/pic/port extensive
See the JUNOS Interfaces Command Reference.
Configuring Switching Between the Working and Protect Circuits
When there are multiple reasons to switch between the working and protect circuits,
a priority scheme is used to decide which circuit to use. The routers and the ADM
might automatically switch traffic between the working and protect circuits because
of circuit and router failures. You can also choose to switch traffic manually between
the working and protect circuits.
When an ATM2 PIC is configured for APS, and the protect circuit comes online for
the first time, there are no open VCs and the PIC discards the input traffic received
on the protect circuit. The
commands display the statistics as zero since the PIC drops the packets at the VC.
When the APS switches from the working circuit to the protect circuit, VCs are created
on the protect circuit to accept traffic. However, the VCs on the working circuit remain
open to support any future APS switches even though the interface is down or
Chapter 61: Configuring SONET/SDH Interfaces
show commands to view the APS container interface
show interface extensive or
Configuring SONET/SDH Physical Interface Properties
show monitor interface traffic
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