<s>
Fast	B-General_Concept
Reroute	I-General_Concept
is	O
a	O
MPLS	B-Protocol
(	O
Multiprotocol	B-Protocol
Label	I-Protocol
Switching	I-Protocol
)	O
and	O
IP	O
resiliency	O
technology	O
to	O
provide	O
fast	O
traffic	O
recovery	O
upon	O
link	O
or	O
router	O
failures	O
for	O
mission	O
critical	O
services	O
.	O
</s>
