D-Link DES-3226 User Manual - Rief
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Manual is about: Layer 2 Switch, Command Line Interface
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179
DES-3226 NWay Standalone Fast Ethernet Switch User’s Guide
E
B
RIEF
R
EVIEW OF
B
ITWISE
L
OGICAL
O
PERATIONS
AND
The logical
AND
operation compares 2 bits and if they are both “
1”,
then the result is
“1”,
otherwise, the result is
“0”.
0 1
0 0 0
1 0 1
OR
The logical
OR
operation compares 2 bits and if either or both bits are
“1”,
then the result is
“1”,
otherwise, the result is
“0”.
0 1
0
0 1
1
1 1
XOR
The logical
XOR (exclusive OR)
operation compares 2 bits and if exactly one of them is a
“1”,
then
the result is
“1”,
otherwise the result is
“0”.
0 1
0
0 1
1
1 0
NOT
The logical NOT operation simply changes the value of a single bit. If it is a
“1”,
the result is
“0”,
if it is a
“0”,
the result is
“1”.
This operation is carried out on a single bit.
0 1
1 0
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