Ethernet Alarm Indication Signal Overview - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide
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Ethernet Alarm Indication Signal Overview

1136
Packet Forwarding Engine panic or a crash
ACX Series routers support the following CLI statements to enable dying-gasp
functionality:
—Enables dying-gasp functionality.
dgasp-int
dgasp-usb —Resets USB port during dying-gasp event.
The and
dgasp-int dgasp-usb
to enable dying-gasp functionality.
To enable dying-gasp functionality, you need to configure the
CLI statements as shown below:
root@host% cli
root@host> configure
Entering configuration mode
[edit]
root@host# set system dgasp-int
[edit]
root@host# set system dgasp-usb
[edit]
root@host# commit
commit complete
[edit]
root@host# show system
dgasp-int;
dgasp-usb;
The dying-gasp functionality is disabled by default.
Understanding Ethernet OAM Link Fault Management for ACX Series Routers on page 1112
ACX Series routers support ITU-T Y.1731 Ethernet Alarm Indication Signal function
(ETH-AIS) to provide fault management for service providers. ETH-AIS enables you to
suppress alarms when a fault condition is detected. Using ETH-AIS, an administrator
can differentiate between faults at customer level or faults at provider level.
The advantage of ETH-AIS is:
Customers need not raise alarms due to lower level failures.
Customers can get refund based on service unavailability.
When a fault condition is detected, a maintenance end point (MEP) generates ETH-AIS
packets to the configured client levels for a specified duration until the fault condition is
cleared. Any MEP configured to generate ETH-AIS packets signals to a level higher than
CLI statements are added under the hierarchy
[edit system]
dgasp-int and dgasp-usb
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