Microsens MS453522M User Manual

Page 71

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MICROSENS 8 Port Gigabit Ethernet Switch

User’s Manual

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: