LevelOne GSW-2496 user manual IP TCP/UDP Port Classification

Function name:

IP TCP/UDP Port Classification

Function description:

In L4 QoS Configuration, you can enter one of these special network

transmission events, for example we use” Down prioritize web browsing, e- mail, FTP and news “L4 QoS Configuration and click <Apply> button, and then click <Advance >>> button. 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 ” Down prioritize web browsing, e-mail, FTP and news

“L4 QoS Configuration with default setting, special defined TCP/UDP port possesses lower QoS traffic than Default class ( all other 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 packets 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, click <Advance >>> button to set up Special TCP/UDP port 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, click <Advance >>> button 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, click <Advance >>> button set up Special TCP/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, click <Advance >>> button to set up Special TCP/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, click <Advance >>> button to set up Special TCP/UDP port for QoS.

66