User Manual
Publication d ate : January, 2005
Revision A1 70
Func tion na me:
IP TCP/UDP Po rt Classification
Func tion de scrip tion:
In L4 QoS Configuration, you can enter one of these special network
transmission events, for example we useā€ Down prioritize web browsing,
e-mail, FTP and news ā€œL4 QoS Configuration and click apply, and then click
Custom L4. We can find Special TCP/UDP port
80,280,443,25,110,20,21,69,119,2009 have already existed and defined for
your using but it is fine that you modify this pre-defined TCP/UDP port with
other port number you prefer. In ā€ Down prioritize web browsing, e-mail, FTP
and news ā€œ L4 QoS Configuration with default setting, special defined
TCP /UDP port posses ses lowe r QoS t raffic than De fault cl ass ( all othe r
TCP/UDP ports such as port 81,82,83,84,85 etc.). Giving an example, when
we transmit TCP packets with port number 80 at each of port 2 and port
number 81 at port 3 to port 1 until the congestion happens. The packets from
port 3 will be dropped by port 1 because the TCP packet s have port number
80 is high priority and will have higher precedence to be sent out from port 1.
Parameter description:
Disable IP TCP/UDP Port Classification:
Belong to the QoS in L4. Just tick the option button and press <Apply>
button to have this function taken affect. Then, enter Custom L4 to
disable IPl TCP/UDP port Classification for QoS.
Down prioritize web browsing, e-mail, FTP and news:
Belong to the QoS in L4. Just tick the option button and press <Apply>
button to have this function taken affect. Then, enter Custom L4 to set up
Special TCP/UDP port for QoS.
Prioritize IP Telephony (VoIP):
Belong to the QoS in L4. Just tick the option button and press <Apply>
button to have this function taken affect. Then, enter Custom L4 to set
up Special T CP/UDP port for QoS.
Prioritize iSCSI:
Belong to the QoS in L4. Just tick the option button and press <Apply>
button to have this function taken affect. Then, enter Custom L4 to set
up Special T CP/UDP port for QoS.
Prioritize web browsing, e-mail, FTP transfers and news:
Belong to the QoS in L4. Just tick the option button and press <Apply>
button to have this function taken affect. Then, enter Custom L4 to set
up Special T CP/UDP port for QoS.
Prio riti ze Str eami ng Audi o/Vi deo :
Belong to the QoS in L4. Just tick the option button and press <Apply>
button to have this function taken affect. Then, enter Custom L4 to set
up Special T CP/UDP port for QoS.