Draytek VigorSwitch G1260, Руководство пользователя

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VigorSwitch G1260 User’s Guide 64
Priority.
Priority
QoS Mode – DSCP
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. DSCP 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 any of queue (low,
normal, medium, high).
Parameter description:
Prioritise Traffic
Five Prioritize Traffic values are provided: User Defined,
All Low Priority, All Normal Priority, All Medium
Priority, and All High Priority.
The QoS setting would apply to all ports on the switch if
one of the following values is selected: All Low Priority,
All Normal Priority, All Medium Priority, or All High
Priority.