Huawei Quidway S1700 Series User Manual

Quidway S1700 Series Ethernet Switches
Web User Manual 8 Rate Limit Configuration
Issue 01 (2011-11-17) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
64
Figure 8-7 Setting the Trust Mode
Table 8-5 Parameters of Trust Mode
Title Description
Interface Specifies a port or trunk.
Trust Mode
z
DSCP – Maps layer 3/4 priorities using Differentiated Services Code
Point values.
z
CoS – Maps layer 3/4 priorities using Class of Service values. (This is
the default setting.)
----End
8.3.4 Mapping Ingress DSCP Values to Internal DSCP Values
Use the Traffic > Priority > DSCP to DSCP page to map DSCP values in incoming packets to
per-hop behavior and drop precedence values for internal priority processing.
The DSCP is six bits wide, allowing coding for up to 64 different forwarding behaviors. The
DSCP replaces the ToS bits, but it 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.
To map DSCP values to internal PHB:
1. Click Traffic, Priority, DSCP to DSCP.
2. Select Modify from the Action list.
3. Set the PHB for any DSCP value.
4. Click Apply.

Huawei Quidway S1700 Series Specifications

General

Brand	Huawei
Model	Quidway S1700 Series
Category	Switch
Language	English