Introduction To Qos Features; Traffic Classification - H3C S3100 Series Operation Manual

Category
QoS action
Congestion
management

Introduction to QoS Features

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.
Features
following types:
Basic ACLs
Advanced ACLs
Layer-2 ACLs (applicable
only to the S3100-EI
series)
IPv6 ACLs (applicable
only to the S3100-EI
series)
S3100-EI series QoS actions
for packets matching the
specified ACL:
Priority marking
Traffic policing
Traffic redirecting
Traffic accounting
Traffic mirroring
VLAN marking
QoS actions directly
configured as required:
Priority trust mode
Traffic shaping
(applicable only to the
S3100-EI series)
Line rate
Burst
SP (applicable only to the
S3100-EI series), WRR, and
HQ-WRR queue scheduling
algorithms
refer to Traffic
For information about priority marking, refer
to Priority Marking.
For information about traffic policing, refer to
Traffic Policing and Traffic
For information about traffic redirecting, refer
to Traffic Redirecting.
For information about traffic accounting, refer
to Flow-Based Traffic
For information about traffic mirroring, refer
to Traffic Mirroring.
For more information about VLAN marking,
refer to VLAN
For information about priority trust mode,
refer to Priority trust
For information about traffic shaping, refer to
Traffic Policing and Traffic
For information about line rate, refer to
Rate Limiting.
For information about the burst function, refer
to Burst.
For introduction to SP, WRR, and HQ-WRR
queue scheduling algorithms, refer to
Scheduling.
1-3
Refer to...
Classification.
Shaping.
Accounting.
Marking.
mode.
Shaping.
Queue
Port