<s>
The	O
QoS	O
Policy	O
Propagation	O
via	O
BGP	B-Protocol
,	O
often	O
abbreviated	O
to	O
QPPB	B-Protocol
,	O
is	O
a	O
mechanism	O
that	O
allows	O
propagation	O
of	O
quality	O
of	O
service	O
(	O
QoS	O
)	O
policy	O
and	O
classification	O
by	O
the	O
sending	O
party	O
based	O
on	O
access	O
lists	O
,	O
community	O
lists	O
,	O
and	O
autonomous	B-Architecture
system	I-Architecture
paths	O
in	O
the	O
Border	B-Protocol
Gateway	I-Protocol
Protocol	I-Protocol
(	O
BGP	B-Protocol
)	O
,	O
thus	O
helping	O
to	O
classify	O
based	O
on	O
destination	O
instead	O
of	O
source	O
address	O
.	O
</s>
