<s>
Link	B-Protocol
flap	I-Protocol
is	O
a	O
condition	O
where	O
a	O
communications	O
link	O
alternates	O
between	O
up	O
and	O
down	O
states	O
.	O
</s>
<s>
Link	B-Protocol
flap	I-Protocol
can	O
be	O
caused	O
by	O
end	B-Protocol
station	I-Protocol
reboots	O
,	O
power-saving	O
features	O
,	O
incorrect	O
duplex	O
configuration	O
or	O
marginal	O
connections	O
and	O
signal	O
integrity	O
issues	O
on	O
the	O
link	O
.	O
</s>
