<s>
QFabric	B-Architecture
is	O
a	O
proprietary	O
technology	O
proposed	O
by	O
Juniper	O
Networks	O
.	O
</s>
<s>
In	O
contrary	O
to	O
open	O
standards	O
such	O
as	O
OpenFlow	B-Protocol
,	O
QFabric	B-Architecture
is	O
regarded	O
as	O
a	O
vendor	O
proprietary	O
approach	O
.	O
</s>
<s>
Competing	O
technologies	O
to	O
QFabric	B-Architecture
include	O
IEEE	B-Protocol
802.1aq	I-Protocol
,	O
MC-LAG	B-Protocol
,	O
VXLAN	B-Protocol
,	O
FabricPath	O
,	O
Virtual	B-Architecture
Cluster	I-Architecture
Switching	I-Architecture
(	O
VCS	O
)	O
,	O
and	O
the	O
IETF	O
TRILL	B-Protocol
standard	O
.	O
</s>
<s>
QFabric	B-Architecture
System	O
Components	O
consists	O
of	O
:	O
</s>
<s>
For	O
data	O
center	O
architecture	O
,	O
QFabric	B-Architecture
creates	O
a	O
single	O
logical	O
switch	O
that	O
connects	O
the	O
entire	O
data	O
center	O
rather	O
than	O
tiers	O
of	O
multiple	O
access	O
aggregation	O
and	O
core	O
switches	O
.	O
</s>
<s>
For	O
example	O
,	O
a	O
typical	O
switch	O
can	O
handle	O
200	O
ports	O
,	O
while	O
QFabric	B-Architecture
can	O
scale	O
up	O
to	O
6000	O
ports	O
with	O
lossless	O
10Gbps	O
speed	O
.	O
</s>
<s>
In	O
a	O
QFX3000-M	O
QFabric	B-Architecture
System	O
,	O
which	O
supports	O
up	O
to	O
768	O
10GbE	O
ports	O
,	O
the	O
average	O
end-to-end	O
latency	O
can	O
be	O
as	O
short	O
as	O
3	O
microseconds	O
.	O
</s>
<s>
In	O
QFX3000-G	O
QFabric	B-Architecture
System	O
,	O
although	O
it	O
supports	O
up	O
to	O
6,144	O
10GbE	O
ports	O
,	O
by	O
connecting	O
all	O
nodes	O
in	O
a	O
full-mesh	O
topology	O
,	O
it	O
can	O
achieve	O
an	O
average	O
port-to-port	O
latency	O
of	O
5	O
microseconds	O
.	O
</s>
