<s>
The	O
Realtek	B-Protocol
Remote	I-Protocol
Control	I-Protocol
Protocol	I-Protocol
(	O
RRCP	B-Protocol
)	O
,	O
developed	O
by	O
Realtek	O
,	O
is	O
an	O
application	B-Application
layer	I-Application
protocol	O
,	O
running	O
directly	O
over	O
Ethernet	B-Protocol
frames	I-Protocol
.	O
</s>
<s>
Instead	O
,	O
all	O
"	O
intelligence	O
"	O
is	O
targeted	O
to	O
reside	O
in	O
a	O
nearby	O
computer	O
,	O
running	O
special	O
RRCP-aware	O
Ethernet	O
switch	O
management	O
software	O
.	O
</s>
<s>
All	O
RRCP	B-Protocol
packets	O
are	O
transmitted	O
as	O
Ethernet	B-Protocol
frames	I-Protocol
with	O
EtherType	B-Protocol
0x8899	O
.	O
</s>
<s>
RRCP	B-Protocol
packet	O
types	O
are	O
the	O
following	O
:	O
</s>
<s>
Hello	O
used	O
to	O
initiate	O
a	O
scan	O
for	O
RRCP-capable	O
switches	O
in	O
a	O
network	O
segment	O
,	O
and	O
to	O
fetch	O
some	O
of	O
their	O
parameters	O
.	O
</s>
<s>
Hello	O
reply	O
sent	O
by	O
an	O
RRCP-capable	O
switch	O
as	O
a	O
response	O
to	O
a	O
valid	O
"	O
Hello	O
"	O
packet	O
.	O
</s>
<s>
Get	O
reply	O
sent	O
by	O
an	O
RRCP-capable	O
switch	O
as	O
a	O
response	O
to	O
a	O
valid	O
Get	O
packet	O
.	O
</s>
<s>
Loop	O
Detect	O
packet	O
not	O
a	O
part	O
of	O
RRCP	B-Protocol
protocol	O
itself	O
,	O
but	O
is	O
closely	O
associated	O
,	O
being	O
an	O
underlying	O
mechanism	O
for	O
a	O
simplified	O
Spanning	B-Protocol
tree	I-Protocol
protocol	I-Protocol
substitute	O
in	O
RRCP-capable	O
switch	O
controllers	O
.	O
</s>
<s>
Echo	O
request	O
not	O
a	O
part	O
of	O
RRCP	B-Protocol
protocol	O
itself	O
,	O
but	O
is	O
closely	O
associated	O
,	O
being	O
an	O
underlying	O
mechanism	O
for	O
a	O
Layer-2	O
analog	O
of	O
ICMP	O
Echo	O
request	O
(	O
Type	O
8	O
)	O
message	O
in	O
RRCP-capable	O
switch	O
controllers	O
.	O
</s>
<s>
Echo	O
reply	O
not	O
a	O
part	O
of	O
RRCP	B-Protocol
protocol	O
itself	O
,	O
but	O
is	O
closely	O
associated	O
,	O
being	O
an	O
underlying	O
mechanism	O
for	O
a	O
Layer-2	O
analog	O
of	O
ICMP	O
Echo	O
reply	O
(	O
Type	O
0	O
)	O
message	O
in	O
RRCP-capable	O
switch	O
controllers	O
.	O
</s>
<s>
Currently	O
,	O
RRCP	B-Protocol
protocol	O
is	O
officially	O
working	O
on	O
Realtek	O
's	O
RTL8316BP	O
,	O
RTL8318P	O
and	O
RTL8324P	O
switch	O
controller	O
chips	O
.	O
</s>
<s>
There	O
are	O
two	O
software	O
suites	O
that	O
are	O
able	O
to	O
communicate	O
with	O
RRCP-capable	O
switches	O
.	O
</s>
<s>
Additionally	O
,	O
tcpdump	B-Protocol
has	O
an	O
interpreter	O
for	O
RRCP	B-Protocol
packets	O
.	O
</s>
