<h2>Advanced configuration for traffic-based Discovery</h2><br/><div style="overflow-x:auto"><article><div ><h3 >Description</h3><section><style type="text/css"><!-- div.margin{ padding: 10px 40px 5px 30px; } table.tocTable{ border: 1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); padding-top: .6em; padding-bottom: .6em; padding-left: .9em; padding-right: .6em; } table.noteTable{ border:1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); width: 100%; border-spacing: 8px; border-collapse: separate; } table.internalTable{ border:1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); width: 100%; border-spacing:0; } .sp td{ border-bottom: 1px solid; border-right: 1px solid; border-color:#E0E0E0; background-color: #ffffff; height: 20px; padding-top: .5em; padding-bottom: .5em; padding-left: .5em; padding-right: .5em; } .sphr td{ border-right: 1px solid; border-bottom: 1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); padding-top: .5em; padding-bottom: .5em; padding-left: .5em; padding-right: .5em; height: 20px; } .title { color: #D1232B; font-weight:; font-size:25px; } .hd1{ color: #D1232B; font-weight:; font-size:18px; } .hd2{ color: #646464; font-weight:bold; font-size:16px; } .hd3{ color: #7a7a7a; font-weight:; font-size:16 px; text-decoration:; } .hd4{ color: #000000; font-weight:bold; font-size:14 px; text-decoration:; } --></style> <div class="margin"><span style="color: #000000; font-size: 14pt;">Overview</span></div> <div class="margin"><hr style="border-top-width: 1px; border-top-style: solid; border-top-color: #cccccc;" />Service Mapping can discover configuration items (CIs) by following traffic connections between CIs. This method is referred to as traffic-based discovery. Service Mapping detects outbound connections using the netstat and lsof commands. Starting with the Istanbul release, Service Mapping also supports the Netflow protocol. The Netflow-based discovery is not enabled by default and must be configured.<br /><br />By default, traffic-based discovery is enabled in Service Mapping and relevant properties are configured to use default values, as described in <a title="Properties installed with Service Mapping" href="https://docs.servicenow.com/" target="_blank" rel="noopener noreferrer nofollow">Properties installed with Service Mapping</a>. <br /><br /></div> <div class="margin"><span class="hd1" style="color: #000000;">Detailed explanation</span></div> <div class="margin"><span class="hd1" style="color: #000000;"><br /></span><hr style="border-top-width: 1px; border-top-style: solid; border-top-color: #cccccc;" />If necessary, you can configure the following advanced properties:<br /><br /><br /> <table class="internalTable" style="border: 1px solid #e0e0e0;" align=""><tbody><tr class="sphr"><td style="vertical-align: middle; text-align: left;"><strong>Parameter name</strong></td><td style="vertical-align: middle; text-align: left;"><strong>Description</strong></td></tr><tr class="sp"><td style="vertical-align: middle; text-align: left;">sa.cmdb_tcp_refresh</td><td style="vertical-align: middle; text-align: left;"><strong>Description</strong>: This parameter defines if Service Mapping runs the ADM probe to update information on traffic-based connections in the cmdb_tcp table. If this parameter is set to true, Service Mapping runs the ADM probe before the discovery process. <p style="text-align: start;"><strong>Type</strong>: true/false</p> <p style="text-align: start;"><strong>Default value</strong>: true</p> <p style="text-align: start;"><strong>Other possible values</strong>: false</p> <p style="text-align: start;"><strong>Location</strong>: This property is not added to the sys_properties table by default. If necessary, <a title="create this value" href="Add a property using sys_properties.list" target="_blank" rel="noopener noreferrer nofollow">create this value</a>.</p> </td></tr><tr class="sp"><td style="vertical-align: middle; text-align: left;"> <span style="text-align: start;"> sa.cmdb_tcp_refresh_time_minutes</span></td><td style="vertical-align: middle; text-align: left;"><strong>Description</strong>: Data on traffic-based connections is stored in the cmdb_tcp table. If the data is stored before the period of time defined by this parameter, Service Mapping updates this data in the table. <p style="text-align: start;"><strong>Type</strong>: integer</p> <p style="text-align: start;"><strong>Default value</strong>: 1440</p> <p style="text-align: start;"><strong>Other possible values</strong>: any non-negative number</p> <p style="text-align: start;"><strong>Location</strong>: This property is not added to the sys_properties table by default. If necessary, <a title="create this value" href="Add a property using sys_properties.list" target="_blank" rel="noopener noreferrer nofollow">create this value</a>.</p> </td></tr><tr class="sp"><td style="vertical-align: middle; text-align: left;"> <span style="text-align: start;">sa.traffic_based.wait_for_adm_probe </span></td><td style="vertical-align: middle; text-align: left;"><strong>Description</strong>: The ADM probe updates information on traffic-based connections during discovery performed by Service Mapping. This parameter defines if Service Mapping waits until the ADM probe completes updating information before running the discovery process. <p style="text-align: start;"><strong>Type</strong>: true/false</p> <p style="text-align: start;"><strong>Default value</strong>: true</p> <p style="text-align: start;"><strong>Other possible values</strong>: false</p> <p style="text-align: start;"><strong>Location</strong>: This property is not added to the sys_properties table by default. If necessary, <a title="create this value" href="Add a property using sys_properties.list" target="_blank" rel="noopener noreferrer nofollow">create this value</a>.</p> </td></tr></tbody></table> <br /><br /></div> <div class="margin"><span class="hd1" style="color: #000000;">Procedure</span></div> <div class="margin"><hr style="border-top-width: 1px; border-top-style: solid; border-top-color: #cccccc;" />Add the required properties to the sys_properties table as described in <a title="Add a property using sys_properties.list" href="https://docs.servicenow.com/csh?topicname=t_AddAPropertyUsingSysPropsList.html&version=latest" target="_blank" rel="noopener noreferrer nofollow">Add a property using sys_properties.list</a>.<br /><br /></div> <div class="margin"> </div> <style type="text/css"><!-- div.margin{ padding: 10px 40px 40px 30px;}table.tocTable{ border: 1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); padding-top: .6em; padding-bottom: .6em; padding-left: .9em; padding-right: .6em;}table.noteTable{ border:1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); width: 100%; border-spacing:2;}table.internalTable{ border:1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); width: 100%; border-spacing:0;}.sp td{ border-bottom: 1px solid; border-right: 1px solid; border-color:#E0E0E0; background-color: #ffffff; height: 20px; padding-top: .5em; padding-bottom: .5em; padding-left: .5em; padding-right: .5em;}.sphr td{ border-right: 1px solid; border-bottom: 1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); padding-top: .5em; padding-bottom: .5em; padding-left: .5em; padding-right: .5em; height: 20px;}.title { color: #D1232B; font-weight:; font-size:25px;}.hd1{ color: #D1232B; font-weight:; font-size:18px;}.hd2{ color: #646464; font-weight:bold; font-size:16px;}.hd3{ color: #7a7a7a; font-weight:; font-size:16 px; text-decoration:;}.hd4{ color: #000000; font-weight:bold; font-size:14 px; text-decoration:;} --></style></section></div></article></div>