User`s guide

Signamax 

 065-7726SPOE / 065-7726SPOE-FP 24-Port 10/100BaseT/TX
PoE Managed Switch User Manual
Publication date: February, 2010
Revision A1.0
141
Function name:
DSCP Setting
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:
DSCP Priority Mapping:
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.
Fig. 3-72