29 June 2018
| James Pearce
An incubation project launched by Orange has developed open source code aimed at speeding up the adoption of interoperable optical transport networks.
Orange initiated TransportPCE in 2016 with the aim of
developing an optical controller of open optical transport
infrastructures, as adoption of software-defined networking
grows. Partners include the likes of AT&T, Fujitsu, and
The project identified two key challenges: the exponential
growth of traffic, driven by the likes of 5G and the internet
of things; and evolution towards network openness from
traditional siloed networks.
Most of management plane protocols and models are still
proprietary, Orange said, leading to challenges with complexity
as networks look to be more interoperable and more
These challenges have led to the development of serval
iniatives such as OpenROADM, OpenConfig, etc led by operators
looking at vendor neutral models, along with the development of
TransportPCE was launched to focus on the network controller
for open, optical transport infrastructure. Several
interoperability use cases were tested, mixing transponders and
ROADM from Ciena and Fujitsu in any possible configuration.
Interoperability was achieved between Ekinops transponders
implementing proprietary high Soft Decision FEC and
Ciena/Fujitsu OpenROADM infrastructure, following an Open Line
System (OLS) approach.
Orange and its partners shared the first proof of concept
results at the NGON and DCI event held in Nice this week.
"Thanks to the contributions of AT&T, Orange and others
to this project, TransportPCE now provides software code for
reference implementation that will facilitate evolution towards
openness and interoperability in optical transport networks,"
said Christian Gacon, Vice President, Wireline Networks and
Infrastructure at Orange.
"AT&T, together with Orange, has a shared commitment to
open systems and open source, both for our network equipment as
well as for our network controllers," said John Paggi,
Assistant Vice President and Member of Technical Staff at
AT&T. "The work in TransportPCE has been instrumental in
developing a true model-based controller using the OpenROADM
MSA device, network and service models, allowing us to move to
a single shared solution and drive new features faster."