Allied Telesis x900-24 series Function Manual page 16

So our biggest block fits into the range 512-767.
The next second biggest block is 128 in our example ... it should fit into 384-511.
...
256
384
...
...
With these 2 blocks, we cover from 384-767. If we keep repeating the same procedure for
the other blocks, we get the commands in the following table. In some of the cases, the
blocks need to be divided into smaller blocks. In our example, instead of having a single block
of 4, we used 2 x 2 blocks: one at the start (classifier 2) and one at the end (classifier 8).
Port range
333
334-335
336-351
352-383
384-511
512-767
768-775
776-777
L4 Mask
Page 16 | AlliedWare™ OS How To Note: Hardware Filters
- 383
- 511
Number of ports
1
2
16
32
128
256
8
2
Number of ports
FFFF
FFFE
FFFC
FFF8
FFF0
FFEO
FFCO
FF80
FF00
FE00
FC00
F800
F000
E000
C000
8000
0000
Appendix A: How to use the layer 4 mask in classifiers
Command
create class=1 udpdport=333
create class=2 udpdport=334 l4dmask=FFFE
create class=3 udpdport=336 l4dmask=FFF0
create class=4 udpdport=352 l4dmask=FFE0
create class=5 udpdport=384 l4dmask=FF80
create class=6 udpdport=512 l4dmask=FF00
create class=7 udpdport=768 l4dmask=FFF8
create class=8 udpdport=776 l4dmask=FFFE
1
2
4
8
16
32
64
128
256
512
1,024
2,048
4,096
8,192
16,384
32,768
65,536