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Viptela Documentation

Simulate Flows

To display the next-hop information for an IP packet (available on vEdge routers only):

  1. In vManage NMS, select the Monitor ► Network screen.
  2. Locate the vEdge router using the Sort options drop-down and the Search box. Or scroll through the list of devices in the device table.
  3. Select the vEdge router by clicking its hostname. The screen changes and the left pane lists the categories of information you can display about the device.
  4. Click Troubleshooting in the left pane.
  5. From the Traffic pane, click Simulate Flows.
  6. To specify the data traffic path, select values or enter data in the required fields and optional fields. On the screen, required fields are indicated with an asterisk (*).
    The required fields are:
    • VPN—VPN in which the data tunnel is located.
    • Source Interface—Interface from which the cflowd flow originates.
    • Source IP—IP address from which the cflowd flow originates.
    • Destination IP—Destination IP address of the cflowd flow.
    • Protocol (under Advanced Options)—Number of the protocol being used to transmit the cflowd flow.
    The optional fields are:
    • Application—Application running on the router.
    • Source Port (under Advanced Options)—Port from which the cflowd flow originates.
    • Destination Port (under Advanced Options)—Destination port of the cflowd flow.
    • DSCP (under Advanced Options)—DSCP value in the cflowd packets.
  7. Click Advanced Options:
    1. In the Path toggle field, select whether the data traffic path information comes from the service side of the router or from the tunnel side.
    2. Select values or enter data in the required fields (marked with an asterisk [*]) and optional fields. The required fields are:
      • Protocol—Number of the protocol being used to transmit the cflowd flow.
      The optional fields are:
      • Source Port—Port from which the cflowd flow originates.
      • Destination Port—Destination port of the cflowd flow.
      • DSCP—DSCP value in the cflowd packets.
    3. Check the All Paths checkbox to display all possible paths for a packet.
  8. Click Simulate to determine the next hop that a packet with the specified headers would take.

Simulate Flows in Releases 17.1 and Earlier

To display the next-hop information for an IP packet (available on vEdge routers only):

  1. In vManage NMS, select the Monitor ► Network screen.
  2. Locate the vEdge router using the Sort options drop-down and the Search box. Or scroll through the list of devices in the device table.
  3. Select the vEdge router by clicking its hostname. The screen changes and displays a left and right pane.
  4. Click Troubleshooting in the left pane. When you first click Troubleshooting, the Connectivity Tools tab and the Ping button are selected in the right pane.
  5. Click the Traffic Analysis tab.

  1. To specify the data traffic path, select values or enter data in the required fields (marked with an asterisk [*]) and optional fields. The required fields are:
    • VPN—VPN in which the data tunnel is located.
    • Source Interface—Interface from which the cflowd flow originates.
    • Source IP—IP address from which the cflowd flow originates.
    • Destination—Destination IP address of the cflowd flow.
    • Protocol (under Advanced Options)—Number of the protocol being used to transmit the cflowd flow.
    The optional fields are:
    • Application—Application running on the router.
    • Source Port—Port from which the cflowd flow originates.
    • Destination Port—Destination port of the cflowd flow.
    • DSCP—DSCP value in the cflowd packets.
  2. Click Advanced Options:
    1. In the Path toggle field, select whether the data traffic path information comes from the service side of the router or from the tunnel side.
    2. Check the All Paths checkbox to display all possible paths for a packet.
  3. Click Simulate to determine the next hop that a packet with the specified headers would take.

Revision History

Introduced in vManage NMS in Release 16.2.
In Release 17.2, modify design of flow simulation screen.

Additional Information

See the Application-Aware Routing article for your software release.

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