4.10.2 DSCP QoS Mode

DiffServ Code Point (DSCP) is the traffic prioritization bits within an IP header that are encoded by certain applications and/or devices to indicate the level of service required by the packet across a network.

The DSCP Configuration page provides fields for defining output queue to specific DSCP fields.

Select the QoS mode to DSCP, the DSCP to queue mapping configuration page appears, as the Figure 4-41 shows.

Figure 4-41DSCP QoS Configuration screen

The page includes the following fields: Table 4-21 Description of the DSCP QoS Configuration.

Item

Description

 

 

 

 

 

 

 

Prioritize Traffic

The draw menu allows customization of DSCP to Traffic classifiers. Total 5

 

selections for the Prioritize Traffic.

 

Custom – Manual mapping the DSCP to the 4-level queues. Setup at the

 

 

next table.

 

 

All Low Priority

- mapping all IP DCSP header packets to Queue 0

 

All Normal Priority

- mapping all IP DCSP header packets to Queue 1

 

All Medium Priority - mapping all IP DCSP header packets to Queue 2

 

All High Priority

- mapping all IP DCSP header packets to Queue 3

 

 

DSCP Value

The values of the IP DSCP header field within the incoming packet.

( 0..63)

 

 

 

 

 

 

Priority

The traffic forwarding queue to which the DSCP is mapped. Four traffic priority

 

queues are supported.

 

 

The queue to which packets with the specific DSCP value is assigned. The values

 

are low,Normal,Medium and High.

 

Low

= Queue 0

 

 

Normal = Queue 1

 

 

Medium = Queue 2

 

 

High

= Queue 3

 

 

 

 

 

 

Table 4-21 Description of the DSCP QoS Configuration

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