Microsens MS453522M

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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: