<s>
In	O
a	O
packet	B-Protocol
switched	I-Protocol
network	I-Protocol
,	O
burst	B-General_Concept
switching	I-General_Concept
is	O
a	O
capability	O
in	O
which	O
each	O
network	B-Protocol
switch	I-Protocol
extracts	O
routing	B-Protocol
instructions	O
from	O
an	O
incoming	O
packet	B-General_Concept
header	I-General_Concept
to	O
establish	O
and	O
maintain	O
the	O
appropriate	O
switch	O
connection	O
for	O
the	O
duration	O
of	O
the	O
packet	B-Protocol
,	O
following	O
which	O
the	O
connection	O
is	O
automatically	O
released	O
.	O
</s>
<s>
In	O
concept	O
,	O
burst	B-General_Concept
switching	I-General_Concept
is	O
similar	O
to	O
connectionless	B-Protocol
mode	I-Protocol
transmission	I-Protocol
,	O
but	O
differs	O
in	O
that	O
burst	B-General_Concept
switching	I-General_Concept
implies	O
an	O
intent	O
to	O
establish	O
the	O
switch	O
connection	O
in	O
near	O
real	O
time	O
,	O
so	O
that	O
only	O
minimum	O
buffering	O
is	O
required	O
at	O
the	O
node	B-Protocol
switch	O
.	O
</s>
<s>
A	O
variant	O
of	O
burst	B-General_Concept
switching	I-General_Concept
used	O
in	O
optical	O
networks	O
is	O
optical	B-Protocol
burst	I-Protocol
switching	I-Protocol
.	O
</s>
