Introduction To Qos Functions; Traffic Classification - H3C S3100-52P Operation Manual

Operation Manual – QoS-QoS Profile
H3C S3100-52P Ethernet Switch
QoS Feature
Congestion
management

1.3 Introduction to QoS Functions

1.3.1 Traffic Classification

Traffic here refers to service traffic; that is, all the packets passing the switch.
Traffic classification means identifying packets that conform to certain characteristics
according to certain rules. It is the foundation for providing differentiated services.
In traffic classification, the priority bit in the type of service (ToS) field in IP packet
header can be used to identify packets of different priorities. The network administrator
can also define traffic classification policies to identify packets by the combination of
source address, destination address, MAC address, IP protocol or the port number of
an application. Normally, traffic classification is done by checking the information
carried in packet header. Packet payload is rarely adopted for traffic classification. The
identifying rule is unlimited in range. It can be a quintuplet consisting of source address,
source port number, protocol number, destination address, and destination port number.
It can also be simply a network segment.
Description
The S3100-52P supports
SP, WFQ, and WRR
queue scheduling
algorithms and supports
the following five queue
scheduling modes:
SP
WFQ
WRR
SP+WFQ
SP+WRR
1-5
Chapter 1 QoS Configuration
Refer to ...
For information about SP, WFQ, and
WRR, refer to Queue Scheduling.