User's Manual

ULP EMS Operator Guide Maintaining and Operating the ULP Network
On-Ramp Wireless Confidential and Proprietary 36 010-0045-00
3.6.1 Summary of Alarms
This section summarizes EMS generated alarms. The following table contains a short summary
for each alarm, including:
1. Network element affected by the alarm
2. Severity of the alarm
3. Short description of the alarm
4. Alarm clearing condition
The sub-sections, after the table, provide details for each alarm, such as descriptions for each
alarm and how to proceed when receiving each type of alarm.
Table 4. Alarm Type and Severity, Description, and Clearing Condition
ULP Network
Element
Severity
Description
Clearing Condition
GW Process
Health
Critical
An GW to EMS
connectivity timeout.
Re-establishing GW to EMS backhaul port
connectivity.
AP Process
Health
Critical
An AP or AP/GW
backhaul error.
Re-establish the AP process and/or
AP/GW Backhaul Connectivity.
AP Not Online
Critical
An AP is offline
AP goes back online
PPM Drift
Critical
An AP crystal drifted out
of tolerance.
Automatically cleared when the AP crystal
is back in tolerance.
Overload
Adjustment
Critical
The AP has determined
that the node capacity is
overloaded.
Automatically cleared when the AP over
load condition has been cleared.
Software Asserts
Info
A ULP Gateway, an AP,
or a Node has generated
a software assert.
Automatically cleared by the software.
Node Frequent
Rejoin
Major
An end device has
rejoined the network >
10 times in a 250 second
window.
Automatically cleared when a node does
not rejoin > 10 times in a 250 second
window.
Node Missed
Intervals
Minor,
Major,
Critical
A Node has missed
update intervals.
Automatically cleared when a node stops
missing update intervals.
Sysmon Node
Communications
Critical
A Sysmon end device
has not communicated to
an AP in its expected
interval.
Automatically cleared when the Sysmon
rejoins the AP and starts communicating.
Frame Squishing
Critical
EMS DB
Backlog
Major
The EMS database is
falling behind.
Automatically cleared when the database
catches up.
Interference
Critical
Automatically cleared when the
interference clears up.