# Viewing egress mapping using EDM

Use this procedure to view egress mapping using EDM.

## 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.

## Variable definitions

Use the data in the following table to help you understand 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.