Huawei Quidway S3000-EI Series User Manual

Operation Manual - QoS/ACL
Quidway S3000-EI Series Ethernet Switches Chapter 2
QoS Configuration
Huawei Technologies Proprietary
2-1
2.1 QoS Overview
ackets are treated equally without priority
llowing the First In First Out
effort to transmit the packets to the destination,
reliability, delay or to
satisfy other performance requirements.
r network, people transfer more and more voice,
l time which are sensitive to the bandwidth, delay
g ore frequently, hence people require higher Quality of Service
e network.
ork technology nowadays.
thernet has been the dominant technology of various independent Local Area
Networks (LANs), and many LANs in the Ethernet form have been part of the Internet.
Moreover, along with the continuous development of the Ethernet technology, Ethernet
will become one of the major ways to access the common Internet users. In order to
implement the end-to-end QoS solution on the whole network, it is inevitable to
consider the question of how to guarantee the Ethernet QoS service. This requires the
Ethernet switching devices to apply the Ethernet QoS technology and deliver the QoS
guarantee at different levels to different types of signal transmissions over the networks,
especially those having requirements of shorter time delay and lower jitters.
2.1.1 Traffic
Traffic refers to all packets passing through a switch.
2.1.2 Traffic Classification
Traffic classification means identifying the packets with certain characteristics, using
the matching rule called classification rule, set by the configuration administrator based
on the actual requirements. The rule can be very simple. For example, the traffic with
different priorities can be identified according to the ToS field in IP packet header. There
are also some complex rules. For example, the information over the integrated link
layer (Layer-2), network layer (Layer-3) and transport layer (Layer-4), such as MAC
address, IP protocol, source IP address, destination IP address and the port number of
application etc can be used for traffic classification. Generally the classification
Chapter 2 QoS Configuration
In the traditional IP network, all the p
difference. Every switch/router handles the packets fo
(FIFO) policy. That is, they make best
not making any commitment or guarantee of the transmission
With the rapid development of compute
image and important data etc at rea
and jitter. This enriches the network sources. On the other hand, the network
con estion occurs m
(QoS) for the transmission over th
The Ethernet technology is the most widely used netw
E

Huawei Quidway S3000-EI Series Specifications

General

Brand	Huawei
Model	Quidway S3000-EI Series
Category	Switch
Language	English