3 ip dscp priority – Planet Technology SGSD-1022 User Manual

Page 233

Advertising
background image

User’s Manual of SGSD-1022 / SGSD-1022P

SGSW-2840 / SGSW-2840P

233

4.10.2.3 IP DSCP Priority

The DSCP is six bits wide, allowing coding for up to 64 different forwarding behaviors. The DSCP retains backward

compatibility with the three precedence bits so that non-DSCP compliant, TOS-enabled devices, will not conflict with the DSCP

mapping. Based on network policies, different kinds of traffic can be marked for different kinds of forwarding.

The DSCP default values are defined in the following table. Note that all the DSCP values that are not specified are mapped to

CoS queue 0.

IP DSCP Value

CoS Queue

0, 8

0

10, 12, 14, 16, 18, 20, 22, 24

1

26, 28, 30, 32, 34, 36, 38, 40, 42

2

46, 48, 56

3

Table 4-10-3

IP DSCP to CoS Queue Mapping

Figure 4-10-6 IP DSCP Priority page screenshot

The page includes the following fields:

Object

Description

DSCP Priority Table

Shows the DSCP Priority to CoS queue map.

Class of Queue Service

Value

Maps the selected DSCP Priority value to a CoS output queue.

Note that queue “0” represents low priority and “3” represent high priority.

Advertising