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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CoS/802.1p to Queue
The CoS/802.1p to Queue page maps 802.1p priorities to egress queues. The CoS/802.1p to
Queue Table determines the egress queues of the incoming packets based on the 802.1p priority
in their VLAN Tags. For incoming untagged packets, the 802.1p priority is the default
CoS/802.1p priority assigned to the ingress ports.
The following table describes the default mapping:
802.1p Values (0-7, 7 being the
highest)
Queue (4 queues 1-4, 4 being the
highest priority)
Notes
0 1 Background
1 1 Best Effort
2 2 Excellent Effort
3 3 Critical Application VoIP phone SIP
4 3 Video
5 4 Voice Cisco IP phone default
6 4 Interwork Control VoIP phone RTP
7 4 Network Control
By changing the CoS/802.1p to Queue mapping (CoS/802.1p to Queue page), the Queue
schedule method (Queue Scheduling page) and bandwidth allocation (Bandwidth page), it is
possible to achieve the desired quality of service in a network.
The CoS/802.1p to Queue mapping is applicable only if one of the following exists:
•
The device is in QoS Basic mode and CoS/802.1p trusted mode
•
Queue 1 has the lowest priority; queue 4 has the highest priority.