<s>
Ethernet	B-Protocol
Configuration	I-Protocol
Testing	I-Protocol
Protocol	I-Protocol
is	O
a	O
diagnostic	O
protocol	O
included	O
in	O
the	O
Xerox	O
Ethernet	O
II	O
specification	O
.	O
</s>
<s>
Functionality	O
of	O
the	O
protocol	O
is	O
similar	O
to	O
that	O
offered	O
by	O
ping	B-Protocol
but	O
it	O
operates	O
at	O
the	O
data	B-Protocol
link	I-Protocol
layer	I-Protocol
as	O
opposed	O
to	O
the	O
network	B-Application
layer	I-Application
.	O
</s>
<s>
Ethernet	B-Protocol
Configuration	I-Protocol
Testing	I-Protocol
Protocol	I-Protocol
was	O
implemented	O
on	O
DEC	O
hosts	O
and	O
Cisco	O
routers	O
.	O
</s>
