Set Outgoing Interface Bandwidth

Some traffic management features require that you set a bandwidth limit for each network interface. For example, you must configure the Outgoing Interface Bandwidth setting to use QoS marking and prioritization.

If you set the Outgoing Interface Bandwidth to anything other than 0, the outgoing bandwidth through the interface is limited to the value you specify. If you do not change this setting from the default value of 0, the outgoing bandwidth is set to the auto-negotiated link speed for that interface.

After you set this limit, your Firebox or XTM device can complete basic prioritization tasks on network traffic to prevent problems with too much traffic on the specified interface. Also, a warning appears in Fireware XTM Web UI if you allocate too much bandwidth as you create or adjust traffic management actions.

To set the bandwidth limit:

  1. Select Firewall > Traffic Management.
    The Traffic Management page appears.
  2. Select the Interfaces tab.

Screen shot of the Traffic Management page, Interfaces tab

  1. Click the Bandwidth column adjacent to the interface name.
  2. Type the amount of bandwidth provided by the network.
    Use your Internet connection upload speed in kilobits or megabits per second (Kbps or Mbps).
    Set your LAN interface bandwidth based on the current or maximum link speed supported by the devices in your LAN.
  3. To change the speed unit, select an interface in the list, then click the adjacent speed unit and select a different option in the drop-down list.
  4. Click Save.

See Also

About Traffic Management and QoS

Define a Traffic Management Action in v11.8.x and Lower

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