PCI SW-0024f2, Руководство пользователя

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Please note that if more than one type of CoS is selected, the
switch will arrange the packet to the assigned queue according the
following priority: TCP/UDP port the first, ToS/DS the second,
802.1p the third and physical port the last.
For 802.1p priority, the following table is used to map the 802.1p
field to the priory queue.
Priory Field Priority Queue
6, 7 Q4
4,5 Q3
0,3 Q2
1,2 Q1
For TOS/DS priority, there are 7 kinds of TOS field can be
assigned to 4 different queues. i.e; 6’b001010, 6’b010010,
6’b01110, 6’b100010, 6’b101110, 6’b110000 and 6’b111000.