Set Action

The Unified Policies Set Action Screen contains a list of Actions that you can configure for the Unified Policy (e.g., QoS, NAT). A Policy Action enables you to specify the treatment traffic is to receive when it flows. This includes the priority the traffic will receive, its minimum and maximum output rates, and the values to which specified bits in the frame headers will be set upon egress from the switch. When the Conditions specified by the Policy Condition are true, traffic will flow as specified by the Policy Action.

Click on an Action to display the configuration options for the Action. (Click again on the Action to close the Action.) When you have completed all of the parameters for the Action(s), click the Next button at the bottom of the screen or click on Validity Period on the left side of the screen to move to the next step. If necessary, you can also click the Back button to return to the screen.

Actions

A brief description of each Action is provided below. Click the hyperlink for each Action for detailed configuration instructions.

• QoS - Create an Action to specify QoS actions to impose on traffic that meets the configured policy condition(s). When the conditions specified by the policy are true, traffic will flow as specified by the policy action. Quality of Service applies to Session Type for APs.
• TCM - Create an Action to specify Tri-Color Marking (TCM) actions to impose on traffic that meets the configured policy condition(s). TCM provides a mechanism for policing network traffic by limiting the rate at which traffic is sent or received on a switch interface. TCM meters traffic based on user-configured packet rates and burst sizes and "marks" the metered packets as green, yellow, or red based on whether the traffic meets the configured rates. This "color marking" determines the packet's precedence when congestion occurs. TCM is not supported on APs and is ignored when applied to those devices.

QoS

The QoS Policy Action option enables you to specify QoS actions to impose on traffic that meets the configured policy condition(s). When the conditions specified by the policy are true, traffic will flow as specified by the policy action.

• Disposition - Set the Action to Accept or Drop traffic that meets the configured condition(s).
• Quality of Service (QoS) Parameters - Specify the QoS priority the traffic will receive if it meets the configured condition(s).
  • Platinum priority provides the highest quality of service (and maps to a firmware priority of 7).
  • Gold provides the next-highest quality of service (and maps to a firmware priority of 5).
  • Silver provides the next-highest quality of service (and maps to a firmware priority of 3).
  • Bronze provides the same quality of service as best effort (and maps to a firmware priority of 1). A separate egress queue is maintained in the hardware for traffic of each different priority.
• Output Flow Setting (not supported on IAP Devices and is ignored when applied to those devices)
  • Max Output Rate (kbits/sec) - Specify the maximum amount of traffic, in kilobits-per-second, which is guaranteed to be transmitted from the port. Even if no other traffic exists, the output will be limited to the rate specified here.
  • Set Color of Packet - Enables/Disables Three Color Marking (TCM) for output traffic flows. This parameter is not supported on APs and is ignored when applied to those devices.
• Output Mapping (not supported on IAP Devices and is ignored when applied to those devices)
  • 802.1p Priority Level - If you want outgoing packets tagged with an 802.1p priority level, set the 802.1p Priority Level field to any value between 0 to 7 to specify the desired outgoing 802.1p priority for the traffic. A value of 7 indicates the highest priority and a value of 0 indicates the lowest priority. Note that for ports that are configured for 802.1q, this value is used in the 802.1q header and indicates the outgoing priority of the frame. When a frame is de-queued for transmission, it is assigned the priority of the queue and mapped to the outgoing 802.1p priority. This priority is combined with the VLAN group ID to create the 802.1p/q header for transmission. Note that if traffic matches the criteria specified by the policy condition, but the outgoing port does not support 802.1p tagging, the policy action will fail. This parameter is not supported on APs.
  • DSCP/TOS - Enable/Disable DSCP/TOS Precedence. The TOS byte is defined in RFC 791. This byte contains two fields. The precedence field is the three high-order bits (0-2) and is used to indicate the priority for the frame. The type of service field (bits 3-6) defines the throughput, delay, reliability, or cost for the frame; however, in practice these bits are not used. If you enable the TOS Precedence radio button, set the associated field to any value from 0-7 to specify the value that will be inserted into the precedence field of the TOS byte upon egress from the switch. A value of 7 has the highest precedence and a value of 0 has the lowest precedence. Note that you can enable either the DSCP or the TOS Precedence radio button to specify the mechanism you want to use (if any) to convey QoS information in the IP header of frames. DSCP and TOS are mutually exclusive. You can use either DSCP or TOS, but not both. This parameter is not supported on APs and is ignored when applied to those devices.

TCM

The TCM Policy Action option enables you to specify Three-Color Marking (TCM) actions action to impose on traffic that meets the configured policy condition(s). TCM provides a mechanism for policing network traffic by limiting the rate at which traffic is sent or received on a switch interface. TCM meters traffic based on user-configured packet rates and burst sizes and "marks" the metered packets as green, yellow, or red based on whether the traffic meets the configured rates. This "color marking" determines the packet's precedence when congestion occurs. TCM is not supported on APs is ignored when applied to those devices.

• Committed Traffic Policing
  • Committed Information Rate - The guaranteed bandwidth, in kbits-per-second, for all traffic that ingresses on the port.
  • Peak Information Rate - The peak amount of bandwidth, in kbits-per-second, for all traffic that ingresses on the port.