Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 990

JUNOS 10.1 Network Interfaces Configuration Guide
disabled. The input traffic received on the working circuit (current backup) is accepted
by the PIC but discarded in the PFE. The
interface traffic
by the PIC.
When APS switches from the protect circuit to the working circuit again, the VCs on
the protect circuit remain open to support a future APS switch even though the
interface is down or disabled. The input traffic received on the current backup protect
circuit is accepted by the PIC but discarded in the PFE. The
or the
since it is accepted by the PIC.
There are three priority levels of manual configuration, listed here in order from
lowest to highest priority:
NOTE: Do not use the
hierarchy level to switch between interface working and protect circuits; it can cause
loss of traffic on the disabled interface. Use only the
statement at the
status.
A router failure is considered to be equivalent to a signal failure on a circuit.
To perform a manual switch, include the
interface-name sonet-options aps]
there are no higher-priority reasons to switch.
When the working circuit is operating in nonrevertive mode, use the
statement to switch the circuit manually to being the working circuit or to override
the revert timer.
To perform a forced switch, include the
interface-name sonet-options aps]
there are no higher-priority reasons to switch. This configuration can be overridden
by a signal failure on the protect circuit, thus causing a switch to the working circuit.
920
Configuring SONET/SDH Physical Interface Properties
commands displays live statistics for the traffic since it is accepted
show monitor interface traffic
Request (also known as manual switch)—Overridden by signal failures, signal
degradations, or any higher-priority reasons.
Force (also known as forced switch)—Overrides manual switches, signal failures,
and signal degradation.
Lockout (also known as lockout of protection)—Do not switch between the
working and protect circuits.
disable
[edit interfaces interface-name aps]
[edit interfaces so-fpc/pic/port sonet-options aps]
request (protect | working);
[edit interfaces so-fpc/pic/port sonet-options aps]
force (protect | working);
show interface extensive
command displays live statistics for this traffic
statement at the
[edit interfaces interface-name aps]
request
hierarchy level to modify interface
statement at the
request
hierarchy level. This statement is honored only if
statement at the
force
hierarchy level. This statement is honored only if
or
show monitor
show interface extensive
statement or the
force
[edit interfaces
request working
[edit interfaces