User Guide
Table Of Contents
- Chapter 1 – Getting Started
- Chapter 2 – System Status
- Chapter 3 – Quick Start
- Chapter 4 – System Management
- Chapter 5 – Port Management
- Chapter 6 – VLAN Management
- Chapter 7 - Spanning Tree Management
- Chapter 8 - MAC Address Management
- Chapter 9 – Multicast
- Chapter 10 - IP Interface
- Chapter 11 - IP Network Operations
- Chapter 12 – Security
- Chapter 13 - Access Control List
- Chapter 14 - Quality of Service
- Chapter 15 - Maintenance
- Chapter - 16 Support
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Basic QoS
In QoS Basic mode, a specific domain in the network can be defined as trusted. Within that
domain, packets are marked with 802.1p priority and/or DSCP to signal the type of service they
require. Nodes within the domain use these fields to assign the packet to a specific output queue.
The initial packet classification and marking of these fields is done in the ingress of the trusted
domain.
To configure Basic QoS mode:
1.
Select Basic mode for the system by using the
Feature Configuration
page.
2.
Select the trust-behavior using the Basic QoS page. The device supports CoS/802.1p
trusted mode and DSCP trusted mode. CoS/802.1p trusted mode uses the 802.1p
priority in the VLAN tag. DSCP trusted mode use the DSCP value in the IP header.
In Basic QoS Mode, it is recommended that you disable the trusted mode at the ports where the
CoS/802.1p and/or DSCP values of the incoming packets are not trustworthy. Otherwise, it might
negatively affect the performance of your network. Incoming packets from ports that are
disabled without trust mode are forwarded in best effort.
Basic QoS
The Basic QoS page contains information for enabling Trust on the device.
This configuration is only active when the QoS mode is Basic mode. Packets entering a QoS
domain are classified at the edge of the QoS domain.