Figure 186 – QoS Rule Configuration
In the above diagram, a QoS rule is organized by the premise part and the conclusion part. In the premise part, you must
specify the WAN interface, host group, service type in the packets, packet flow direction to be monitored and the sharing
method of group control or individual control. However, in the conclusion part, you must specify the kind of system resource
to distribute and the control function based on the chosen system resource for the rule.
Rule-based QoS has the following features.
Multiple Group Categories
Specify the group category in a QoS rule for the target objects to be applied on.
Group Category can be based on VLAN ID, MAC Address, IP Address, Host Name or Packet Length.
Differentiated Services
Specify the service type in a QoS rule for the target packets to be applied on.
Differentiated services can be based on 802.1p, DSCP, TOS, VLAN ID, User-defined Services and Well-known Services.
Well-known services include FTP(21), SSH(TCP:22), Telnet(23), SMTP(25), DNS(53), TFTP(UDP:69), HTTP(TCP:80),
POP3(110), Auth(113), SFTP(TCP:115), SNMP&Traps(UDP:161-162), LDAP(TCP:389), HTTPS(TCP:443), SMTPs(TCP:465),
ISAKMP(500), RTSP(TCP:554), POP3s(TCP:995), NetMeeting(1720), L2TP(UDP:1701) and PPTP(TCP:1723).
Available Control Functions
There are 4 resources can be applied in a QoS rule: bandwidth, connection sessions, priority queues and DiffServ Code
Point (DSCP). Control function that acts on target objects for specific services of packet flow is based on these
resources.
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