<s>
TCP	B-Protocol
Vegas	I-Protocol
is	O
a	O
TCP	O
congestion	O
avoidance	O
algorithm	O
that	O
emphasizes	O
packet	B-Protocol
delay	O
,	O
rather	O
than	O
packet	B-Protocol
loss	I-Protocol
,	O
as	O
a	O
signal	O
to	O
help	O
determine	O
the	O
rate	O
at	O
which	O
to	O
send	O
packets	B-Protocol
.	O
</s>
<s>
TCP	B-Protocol
Vegas	I-Protocol
detects	O
congestion	O
at	O
an	O
incipient	O
stage	O
based	O
on	O
increasing	O
Round-Trip	O
Time	O
(	O
RTT	O
)	O
values	O
of	O
the	O
packets	B-Protocol
in	O
the	O
connection	O
unlike	O
other	O
flavors	O
such	O
as	O
Reno	O
,	O
New	O
Reno	O
,	O
etc.	O
,	O
which	O
detect	O
congestion	O
only	O
after	O
it	O
has	O
actually	O
happened	O
via	O
packet	B-Protocol
loss	I-Protocol
.	O
</s>
<s>
TCP	B-Protocol
Vegas	I-Protocol
is	O
one	O
of	O
several	O
"	O
flavors	O
"	O
of	O
TCP	O
congestion	O
avoidance	O
algorithms	O
.	O
</s>
<s>
It	O
is	O
one	O
of	O
a	O
series	O
of	O
efforts	O
at	O
TCP	B-Protocol
tuning	I-Protocol
that	O
adapt	O
congestion	O
control	O
and	O
system	O
behaviors	O
to	O
new	O
challenges	O
faced	O
by	O
increases	O
in	O
available	O
bandwidth	O
in	O
Internet	O
components	O
on	O
networks	O
like	O
Internet2	O
.	O
</s>
<s>
TCP	B-Protocol
Vegas	I-Protocol
has	O
been	O
implemented	O
in	O
the	O
Linux	B-Operating_System
kernel	I-Operating_System
,	O
in	O
FreeBSD	B-Operating_System
and	O
possibly	O
in	O
other	O
operating	B-General_Concept
systems	I-General_Concept
as	O
well	O
.	O
</s>
