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Configuring SONET/SDH Defect Triggers
You can configure SONET/SDH defect triggers as either ignore or hold time. The following topics explain defect triggers in detail.
Configuring SONET/SDH Defect Triggers to Be Ignored
A trigger is a defect alarm that causes a physical interface to be marked down. By default, all defects are honored with no hold time. For SONET/SDH and ATM over SONET/SDH interfaces only, you can configure individual triggers to ignore a defect, honor a defect, and apply up and down hold timers to the defect.
To configure defects to be ignored:
- In configuration mode, go to the [edit interfaces interface-name sonet-options trigger] hierarchy
level.[edit]user@host# edit interfaces interface-name sonet-options trigger
- Configure the defect ignore option to turn
off the loopback capability.[edit interfaces interface-name sonet-options trigger]user@host# set defect ignore
Configuring SONET/SDH Defect Hold Times
To configure hold timers:
- In configuration mode, go to the [edit interfaces interface-name sonet-options trigger] hierarchy
level.[edit]user@host# edit interfaces interface-name sonet-options trigger
- Configure the hold-time statement with up and down options in milliseconds ranging from
1 through 65,534 milliseconds. [edit interfaces interface-name sonet-options trigger]user@host# set defect hold-time up milliseconds down milliseconds
Displaying the Configuration for SONET/SDH Defects to Be Ignored
Purpose
To display the configuration for SONET/SDH defects to be ignored.
Action
To display the defects in an interface (for example so-1/0/0), perform the following steps:
- In configuration mode, go to the [edit interfaces so-1/0/0 sonet-options trigger] hierarchy level.[edit]user@host# edit interfaces so-1/0/0 sonet-options trigger
- Issue the show defect operational mode command.[edit interfaces so-1/0/0 sonet-options trigger]user@host# show defect
The following output is displayed:
ais-l ignore; lof ignore; los ignore; pll ignore; rfi-l ignore; rfi-p ignore;
