Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 978

JUNOS 10.1 Network Interfaces Configuration Guide
Table 87: SONET/SDH and ATM Active Alarms and Defects (continued)
To configure defects to be ignored, include the
interface-name sonet-options]
If you configure a defect to be ignored, that defect does not contribute to the interface
being marked down or up.
After you configure a defect to be ignored, the JUNOS Software reevaluates the state
of the defect on the interface. If the defect is outstanding and has caused the interface
to be marked down, the interface is marked up.
When you configure a trigger on a low-level defect—for example, an LOS—only the
low-level defect is affected. Higher-level defects that might result from the lower-level
defect are not affected by the low-level trigger configuration. Therefore, you must
configure higher-level defects as well.
Configuring SONET/SDH Defect Hold Times
By default, an interface is marked down as soon as a defect is detected, and is marked
up as soon as the defect is absent. You might want to apply hold times to defects for
the following reasons:
908
Configuring SONET/SDH Physical Interface Properties
Alarm
Line
ais-l
rfi-l
ber-sd
ber-sf
Path
ais-p
(ATM only)
locd
lop-p
plm-p
rfi-p
uneq-p
[edit interfaces interface-name sonet-options]
trigger {
defect ignore;
}
Description
Alarm indication signal—line
Remote failure indication—line
Bit error rate defect-signal degrade
Bit error rate fault-signal fail
Alarm indication signal—path
Loss of cell delineation
Loss of pointer—path
Payload label mismatch
Remote failure indication—path
Path unequipped
statement at the
trigger
hierarchy level:
[edit interfaces