Configuring ToS/DSCP

You can configure ToS/DSCP from the network rules page or the Class of Service page. Define how the Layer 3 ToS/DSCP will be marked:

  1. Go to Configure > Policy > Roles > Add.
    Or, Class of Service > Add > Configure ToS/DSCP and skip to step 5.
  2. Select Bandwidth Limit and click .
  3. Click Edit next to Advanced Settings.
  4. Click Configure ToS/DSCP.
  5. In the ToS/DSCP dialog box, select either Type of Service (ToS) or Diffserv Codepoint (DSCP). Set the related options, and click OK.

    Type of Service (ToS)

    Precedence
    Assign a priority to the packet. Packets with lower priority numbers are more likely to be discarded by congested routers than packets with higher priority numbers.
    Delay Sensitive
    Specifies that the high priority packets will be routed with minimal delay. It can be useful to enable this option for voice protocols.
    High Throughput
    Specifies that high priority packets will be routed with high throughput.
    High Reliability
    Specifies that high priority packets will be routed with low drop probability.
    Explicit Congestion Notification (ECN)
    Permits end-to-end notification of network congestion while preventing dropped packets. ECN can be used only with two ECN-enabled endpoints.

    Diffserv Codepoint (DSCP)

    Well-Known Value
    These values are explicitly defined in the DSCP related RFCs and implemented on many vendors' switches and routers.
    Raw Binary Value
    Specify a binary value if you want finer definition of priority.