Scheduled network discovery can discover new devices from your network, add them to your domain automatically, and enable you to check the latest status of your network devices regularly. With the scheduled discovery task, you can get to know any newly added devices, decommissioned devices and more.
2.In the Domain Management page, click Schedule Task on the Start Page or select Operations > Schedule Task from the quick access toolbar.
3.On the Schedule Task tab, click Add Discovery Task.
4.Enter the task name and description.
5.Follow the tabs in the wizard to configure the settings for the task.
▪Network Setting — select the proxies and credentials to be used in the discovery.
▪SNMP and Telnet — retrieve vendor and model information via SNMP first, and then log in to devices by using Telnet to retrieve live data.
▪SNMP and SSH — retrieve vendor and model information via SNMP first, and then log in to devices by using SSH to retrieve live data.
▪SNMP and Telnet/SSH — retrieve vendor and model information via SNMP first, and then log in to devices by using Telnet to retrieve live data; if Telnet doesn't work, then use SSH.
▪SNMP and SSH/Telnet — retrieve vendor and model information via SNMP first, and then log in to devices by using SSH to retrieve live data; if SSH doesn't work, then use Telnet.
▪SNMP Only — retrieve live data via SNMP only.
➢Discovery Depth — set the discovery depth by entering a value between 0 and 255.
▪Run additional operations after discovery — choose to whether to run the additional operations for the discovery, including updating MPLS Cloud CE list, building IPv4 L3 topology, sites and so on. It is recommended to keep this option checked, otherwise the discovered devices will not be ready until the benchmark task finishes.
▪Retrieve device/module/interface information — choose to whether to retrieve the device/module/interface information for certain discovery (for example, AWS discovery to merge the multi-source devices and Juniper discovery for complete MIB information).
▪CLI Forced Timeout — the time limit of each CLI command to retrieve live data from a device. The default value is 600 seconds.
▪Use NDP to discover neighbor devices — discover neighbor devices by looking up an NDP table.
▪Find routing protocol neighbor via SNMP — retrieve routing protocol (such as BGP, EIGRP, and OSPF) neighbors via SNMP.
▪Use CLI routing table to discover next-hops — discover neighbor devices from route tables retrieved by CLI commands.
▪Scan destination subnets — continue to scan all destination subnets in the route tables of the devices that are discovered in the last depth.
▪Scan all connected subnets — continue to scan all directly connected subnets of the devices that are discovered in the last depth.
oMinimum mask bits — scan subnets with mask exceeding the threshold. The default value is 24 and can be configured between 22 and 32.
It offers the option to scan the IP range or discover via seed routers by taking the IP addresses you input as seeds to discover new devices by neighbor spreading until the discovery depth is reached. To configure the settings, see Discovering Network Devices for more details.
▪Email Alerts — enable the email alert function when the task execution fails or succeeds with warning.
▪Summary — check your configurations.
6.Click Submit. The newly added task is enabled by default.