Configuring egress mapping using EDM

Use the following 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.

Procedure steps


Step Action

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 aDscp 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 dialog box, type a value.

11

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

12

In the dialog box, type a character string.


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Variable Definitions

Use the data in the following table to configure egress mapping.

Variable Value
Dscp Indicates the DSCP value. This is a read-only cell.
802.1pPriority Specifies the user priority value associated with the DSCP. Values range from 0–7.
DropPrecedence

Specifies the relative drop precedence value for mapping the DSCP value to a drop precedence. 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. Values range from 0–63.
ServiceClass Specifies the type of service. Value is a character string with a maximum of 20 characters.