NETGEAR NMS100 manual Setting Threshold Alarms, Alarm Type Description

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Chapter 4

Polling and Emailing

Setting Threshold Alarms

You can generate a Threshold Alarm when a polled SNMP variable value meets certain criteria. ProSafe NMS supports three distinct mechanisms for generating Threshold Alarms as described in the following table.

Table 4-1.	Threshold Alarms

Alarm Type		Description

Status Variable Polling		Use the Object Properties dialog to set a single SNMP
		variable plus instance that is polled in real time (Poll Interval
		attribute seconds). Use this for Emergency Status Polling. For
		example, poll for UPS battery failure, disk full, or link down
		conditions.
Automatic Trend Baseline		ProSafe NMS automatically determines a baseline value for
		all variables in any trend reports that you add. The baseline is
		set after a learning period and periodically adjusted. The
		polling agent will generate alarms if a polled value exceeds
		the baseline by a preset percentage.
Manual Trend Threshold		Use manual threshold alarms in trend reports to specify a
		particular condition to test. This is commonly used to monitor
		line utilization variables. In this case the alarm condition is well
		known to the user and involves a longer polling period (for
		example, 80% over 10 minutes).

Polling and Emailing

4-1

September 2004 202-10058-01

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Contents NETGEAR, Inc September 2004Statement of Conditions TrademarksCustomer Support World Wide Web Contents Chapter Data and Statistics Appendix a Contents Typographical Conventions Audience, Scope, Conventions, and FormatsManual Scope Overview Other ProSafe NMS FeaturesProSafe Network Management System Device Access ModesSystem Requirements Recommended system requirementsPackage Contents Introduction Introduction Installing the ProSafe NMS Server and Local Console Chapter Installation and StartupStarting the ProSafe NMS Server and Local Console Installing the Air Messenger Pro Paging SoftwareStarting a Local Console Session Disabling Automatic Console LoginStopping and Starting the Server Main button bar Edit button bar Selection Tool Console ElementsEvent Log Tool Element FunctionZoom to Console Button CommandsEvent Log Tool Selection ToolSelection Tool tabs Selection Tab DescriptionView Window Area Installation and Startup Map Selection Tree Working with the Map DatabaseView All Zoom Out Using Map View WindowsZoom RectangleMoving Objects at the Root Level Moving Map ObjectsAutomatically arranged and manually arranged submap levels Moving Objects Inside Subnet LevelsMoving Objects from One Subnet to Another Attributes Changing Object PropertiesObject Properties Access tab Access ParametersAttribute Name Description Type-Dependent Attributes Object Attribute Name Description Type a Object Properties Attribute tabObject Types Adding Map ObjectsType Description MIB Selection Tree Viewing Device MIB DataManage Menus Custom Menus Table Display ElementsGraph Styles Graph Display ElementsCreating a New Report Saving Long-term StatisticsViewing Trend Data in a Graph Window Limiting Saved Instances Threshold Alarms Setting Threshold AlarmsAlarm Type Description Configuring Automatic Alarms Setting Status Variable PollingSetting Manual Threshold Alarms Discovery of Four Built-in Services Polling TCP Application ServicesTCP Service Polling Managing Polling for the Device Custom TCP Service PollingTo modify an existing Custom TCP Service definition Emailing or Paging the Administrator on an EventThen, set the Email/Paging global event options Add an Event Filter for the pollDeviceDown event Then, set the Email/Page event actions ProSafe NMS Events Other Event TypesEvent Subtree Trap Name Description First, add a grouped set of users Emailing or Paging Multiple UsersThen, add an Event Filter for the selected devices Duration of Network Discovery Troubleshooting Network DiscoveryNormal Discovery Map Layout Sample top-level and Subnet Map views for a small network Failure Symptoms and SolutionsIncorrect or Missing Community Names Discovery Agent Fails to Connect to the ServerFirewalls Block Snmp Operations Snmp Device Access Control ListNot Enough Seeds Broadcast Packet Losses Setting Up New FiltersLimiting the Scope of Discovery Stopping Discovery Auto-Layout Event Parameters Event ParametersEvent Description Parameters Set Community name of the target device List of Glossary Terms Auto Uplink Denial of Service attackCat Domain Name DoS Dynamic Host Configuration ProtocolIP Address GatewayInternet Protocol Local area network Lightweight Directory Access ProtocolMAC address MbpsNetwork Address Translation NetBIOSPacket Perfect Forward SecrecyPPP over ATM PPPoEPPP over Ethernet RouterSubnet Mask Universal Plug and Play Wi-Fi Windows Internet Naming ServiceWEB Proxy Server Wide area networkWireless Network Name Ssid Index Index Index