<s>
In	O
computer	B-Architecture
networking	I-Architecture
,	O
a	O
routing	B-Protocol
domain	I-Protocol
is	O
a	O
collection	O
of	O
networked	O
systems	O
that	O
operate	O
common	O
routing	B-Protocol
protocols	I-Protocol
and	O
are	O
under	O
the	O
control	O
of	O
a	O
single	O
administration	O
.	O
</s>
<s>
For	O
example	O
,	O
this	O
might	O
be	O
a	O
set	O
of	O
routers	B-Protocol
under	O
a	O
control	O
of	O
a	O
single	O
organization	O
,	O
some	O
of	O
them	O
operating	O
a	O
corporate	O
network	O
,	O
some	O
others	O
a	O
branch	O
office	O
network	O
,	O
and	O
the	O
rest	O
the	O
data	O
center	O
network	O
.	O
</s>
<s>
A	O
given	O
autonomous	B-Architecture
system	I-Architecture
can	O
contain	O
multiple	O
routing	B-Protocol
domains	I-Protocol
,	O
or	O
a	O
set	O
of	O
routing	B-Protocol
domains	I-Protocol
can	O
be	O
coordinated	O
without	O
being	O
an	O
Internet-participating	O
autonomous	B-Architecture
system	I-Architecture
.	O
</s>
