Draytek VigorSwitch G2080, Руководство пользователя, Страница: 56 / 120

VigorSwitch G2080 User’s Guide 50
Simple Mode: Press <Simple << > button is to return to the screen that all
L4 port number will disappear
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Function name:
IP Diffserv Classification
Function description:
In the late 1990s, the IETF redefined the meaning of the 8-bit SERVICE TYPE field to
accommodate a set of differentiated services (DS). Under the differentiated services
interpretation, the first six bits comprise a codepoint, which is sometimes abbreviated
DSCP, and the last two bits are left unused.
IP Diffserve Classification function, it can form total 64 (0~63) kinds of Traffic Class
based on the arrangement of 6-bit field in DSCP of the IP packet. In the switch, user is
allowed to set up these 64 kinds of Class that belong to High or Low Priority.
Parameter description:
IP Differentiated Services (DiffServ) Configuration: Used for setting up the IP
Differentiated Services Configuration QoS.
Diffserv: Display 64 (0~63) DiffServ Priority items.
Class: 64 kinds of traffic as we mentioned above, user can set up
High Priority or Low Priority for each port respectively.