Westermo RedFox Series - Manual (Page 538)

Westermo OS Management Guide
Version 4.17.0-0
is extended over an SHDSL link, and where the remote SHDSL switch (e.g.,
a DDW-120) is able to signal that the Ethernet link is down on its side.
❼ Network Connectivity (Ping):
It is possible to have a trigger to monitor
network connectivity by using the ping command to a specific host. The
remote node is considered unreachable if a configurable number of pings are
lost, and considered reachable if the same number of pings are successfully
received.
Note
Make sure the remote host responds to ICMP ping. A typical behaviour
of many hosts is that ICMP ping is blocked in the host’s firewall.
❼ PoE Power Usage: On units supporting Power Over Ethernet (PoE), alarms
can be triggered when the total power usage raises above (or falls below)
some configured threshold.
❼ Microlok Session Status On units running a Microlok Gateway (
chapter 41 ,
an alarm can be triggered if any of the established sessions go down.
24.1.3 Alarm triggers
An alarm trigger defines the rules for when alarm events should be generated
for a monitored alarm source. Alarm triggers also define which alarm action to
invoke when an alarm event occurs.
Currently supported alarm trigger types:
❼ Power failure
❼ Link alarm
❼ Digital-In
❼ Temperature
❼ FRNT ring status
❼ Hardware failure (The hardware failure alarm trigger is implicit, and cannot
be removed or modified.)
❼ SNR margin (SHDSL and xDSL ports)
❼ LFF (SHDSL ports)
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