Mapping an End-to-End Traffic Flow with Path Calculator
Contents
You can use the Path Calculator to instantly map an end-to-end traffic flow from one endpoint to another, or from a receiver to a source (multicast network), and then troubleshoot or monitor your network traffics based on the visualized path.
Calculate a Unicast Path
1.Click Path on the search bar.
2.Enter the source and the destination IP addresses (device hostnames or DNS names).
Tip: The 1st Hop Map function can help you choose the first hop.
3.Click the 
or the 
icon to select the path direction. By default, the system calculates one-way paths.
Tip: To quickly swap the source and the destination IP addresses, click the 
icon.
4.If a device has multiple gateways, select the correct one from the Gateway list, or select any device’s interface with IP as the gateway for the end system.
Tip: To configure the data source, protocol, and other advanced settings for path calculation, click the 
icon to make changes. See Path Settings for more reference.
Note: Only the current device’s interface with configured IP can be chosen as the gateway for a network device.
Tip: You can predefine gateways for end systems in batch in your NetBrain domain. With the definition, the system automatically looks up the matched gateways for the source and destination during a path calculation, without having to re-selecting the gateways. See Predefining Gateway Fix-up Rules for details.
5.Click Path to start calculating the path. A map is automatically created to diagram the path.
Tip: The system determines which path type to calculate based on the network topology type the traffic goes through. For example, a traffic path goes through an interface with L2, L3, and overlay topology types, and the system will calculate three types of paths (L2 path, L3 path, and overlay path). You can click a path type in the Path Result pane to show the corresponding path on the map.
Note: The technology tag for each Path hop is checked by the path discovery logic.
6.Click the 
icon in the Path Result Pane and select Save Path to save the path to the Path Browser.
Calculate a Multicast Path
1.Click Path on the search bar.
2.Click the Setting icon and select Multicast as Path type.
3.Enter a Multicast Receiver IP address in the Receiver field, a Multicast Source IP address in the Source field, and a Group Value in the Group field.
4.If a device has multiple gateways, select the correct one from the Gateway list, or select any device’s interface with IP as the gateway for the end system.
Tip: To configure the data source, protocol, and other advanced settings for path calculation, click the icon to make changes. See Path Settings for more reference.
Note: Only the current device’s interface with configured IP can be chosen as the gateway for a network device.
Tip: You can predefine gateways for end systems in batch in your NetBrain domain. With the definition, the system automatically looks up the matched gateways for the source and destination during a path calculation, without having to re-selecting the gateways. See Predefining Gateway Fix-up Rules for details.
5.Click Path to start calculating the path. A map is automatically created to diagram the multicast path.
6.Click the icon in the Path Result Pane and select Save Path to save the path to the Path Browser.
Further operations:
▪Viewing Path Results and Details
▪Document Path
▪To monitor overall health along the path, select the path on the map and then click Monitor.
See also: