
160
CHRISTIAN ESTEVE ROTHENBERG ET AL.
© 2010 Taylor & Francis Group, LLC
Previously described approach numbers 1 and 3 are implemented
by two OpenFlow-based architectures, that is, RouteFlow and
LegacyFlow, which will be detailed further in this chapter. RouteFlow
implements an IP level control plane on top of an OpenFlow net-
work, making the underlying nodes act like routers, with different
arrangement possibilities. LegacyFlow extends the OpenFlow-based
controlled network to embrace non-OpenFlow nodes.
e common grounds of these pieces of work are (1) considering
hybrid as the coexistence of traditional environments of closed vendor’s
routers ...