Waters Network Systems
2800M/MR User’s Manual
Page 108
TOS Throughput Priority Mapping:
Each Priority can select Queue 0 ~ Queue 3. By
Default
, Priority 0 is mapped to Queue 0,
Priority 1 is mapped to Queue 0, Priority 2 is mapped to Queue 1, Priority 3 is mapped to
Queue 1, Priority 4 is mapped to Queue 2, Priority 5 is mapped to Queue 2, Priority 6 is
mapped to Queue 3, and Priority 0 is mapped to Queue 3.
Figure 5.67 – TOS Throughput Priority Mapping
Function name:
R-Type TOS
Function description:
IP TOS Priority affects the TOS fields of the IP header. It has an 8-bit SERVICE TYPE field that
specifies how the datagram should be handled. The field can be divided into the following six
subfields:
PRECEDENCE (3 bits)
D-Type (Delay Priority, 1 bit)
T-Type (Throughput Priority, 1 bit)
R-Type (Reliability Priority, 1 bit)
M-Type (Monetary Cost Priority, 1 bit)
UNUSED. PRECEDENCE 3-bits can arrange eight types of priorities corresponding to the 0~7
priority in the following priority diagram. TOS Reliability Priority Mapping works while R-TYPE in
TOS field of IP header of the packets received by the switch is configured.
