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OPENFLOW/SDN FOR OPTICAL NETWORKS
© 2010 Taylor & Francis Group, LLC
commodity PC, which can emulate the failure alarm similar to a real
TPND. e remaining nodes were equipped with real hardware. e
whole network is assumed to be operated by a single carrier in Japan,
representing a scenario where a carrier rents network resources from
other carriers in different countries to provide international services.
In Figure 14.45, the number close to each NE is their ID from the
viewpoint of the Nox (i.e., datapath ID in OpenFlow terminology).
e network topology was statically configured in the Nox control-
ler. Each link was deployed with four wavelengths, including W1
(1552.52 nm), W2 (1553.33 nm), W3 (1554.13 nm), and W4 (1554.94
nm). e Nox was ...