VigorSwitch P2260 User’s Guide
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Function name:
DSCP Priority Mapping
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.
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 0~3.
Parameter description:
Queue:
64 kinds of priority traffic as mentioned above, user can set
up any of Queue 0~3. In default, Priority 0~15 are mapping
to Queue 0, Priority 16~31 are mapping to Queue 1, Priority
32~47 are mapping to Queue 0, Priority 48~63 are mapping
to Queue 0.
