as they function through the HTML interface. 12 Fault Management A AdventNet Java Client Default Properties User can specify the default tree node properties here for the tree node to be added Tree Node Attributes Parent Node Mib Manager Test Node Icon File Name redDot.png Popup Menu File Name frameoptions.xml Include Tree Node in both Java UI and HTML UI Panel Attributes Class Name ExampleNMSPanel Menu File Name testmenu.xml Initialize the Panel On Startup ? Frame Attributes Title Default Close operation Do Nothing Click next to add user defined properties Next> Apply Close Figure 12.22 Tree node properties. 12.11.5.1 Network Events in HTML Events, as the complete set of notifications from the network, are of two types: exter- nal and internal events. External events are actions or notifications that are external to the fault management system, for example traps which are basic notifications from the SNMP agents or management applications. Internal events, on the other hand, are notifications which are generated when FMS is integrated with any other network managements system. Examples of internal events are threshold events and status events. Creating custom views explains the properties used for filtering required events. It also shows the column headings that can be selected for the custom view. The age of an event is a criterion to filter events based on their last-modified time. 12.11.5.2 Event Operations in HTML Parsing a trap to generate an event is an important event operation. The agent run- ning in any device can be configured to send some traps to the manager. We shall discuss traps and why traps are converted into events. OSS for Telecom Networks A AdventNet Java Client File Tools Look And Feel Window Help TestNode SNMP Tools ong Mib Manager TestNode Total Alt-B Failure Object SNMP V3 Forward Alt-F vhari TL1 Tools Detach Alt-D IF-vhari Close Frame Alt-C rajis rajis Clear IF-rajis rajis Major switch-rj2_Porte Major renukak Tree pop-up menu Major IF-renukak Major support-server Major IF-support-server 