Configuring egress mapping using EDM

Use this procedure to configure DSCP-to-802.1p priority and drop precedence associations that are used for assigning these values at packet egress, based on the DSCP in the received packet.

Prerequisites

  • Open one of the supported browsers.

  • Enter the IP address of the switch to open an EDM session.

Procedure steps

  1. From the navigation tree, double-click QoS.

  2. In the QoS tree, double-click QoS Devices.

  3. In the work area, click the DSCP Mapping tab.

  4. To select a DSCP map to edit, click a Dscp row.

  5. In the Dscp row, double-click the cell in the 802.1pPriority column.

  6. From the list, select a value.

  7. In the Dscp row, double-click the cell in the DropPrecedence column.

  8. From the list, select a value.

  9. In the Dscp row, double-click the cell in the NewDscp column.

  10. In the cell, type a value.

  11. In the Dscp row, double-click the cell in the ServiceClass column.

  12. In the cell, type a character string.

  13. On the toolbar, click Apply.

Variable definitions

Use the data in the following table to help you configure egress mapping.
Table 1. DSCP Mapping tab parameters
Variable Value
Dscp Indicates the DSCP value. This is a read-only cell.
802.1pPriority Specifies the user priority value associated with the DSCP. The values range from 0–7.
DropPrecedence
Specifies the relative drop precedence value for mapping the DSCP value to a drop precedence. The values include:
  • lowDropPrec

  • highDropPrec

When network congestion occurs, the system drops packets with a high drop precedence before those with a low drop precedence.
NewDscp Specifies a new DSCP value to use when DSCP mutation is required. The values range from 0–63.
ServiceClass Specifies the type of service. The value is a character string with a maximum of 16 characters.