13 March 2018
| Natalie Bannerman
Telia and Coriant have successfully completed a live field trial of technology optimised for real-time optical performance awareness and dynamic provisioning of fibre-optic capacity.
The trial took place last month on a live fibre route in
Telia Carrier’s backbone network between Hamburg
Speaking exclusively to
Capacity about the announcement and explaining the
significance of the trials, Mattias Fridström, chief
evangelist at Telia Carrier said: The optical world has been so
fantastically manual and everyone is looking for ways to become
less manual and more automated. So what we’ve done
here with Coriant is start to create some kind of automation on
the network. By using the equipment Coriant has to do the
calculations we already do but in an automated way, everything
that is calculated on the system and measured is done for you
automatically. It means we can do a lot more things remotely,
we can things a lot faster and in a lot more reliable way."
Adding to Fridström’s explanation, Uwe
Fischer, executive vice president of R&D and PLM, and CTO
at Coriant said: "By doing this trial not only are we enabling
neutral, real-time network automation but we’re
also able to do trend analysis. We’re able to
predict how the system will be in the future looking at the
data from the network and this allows for proactive action to
The trial demonstrated enhanced end-user service reliability
and improved operational efficiencies using innovations in
online service planning, in-service optical margin measurement
and real-time health check analytics. 200G wavelengths were
provisioned on-demand during the trial, based on the real-time
visibility of residual margin and Optical Signal to Noise Ratio
(OSNR) along the transmission route.
"Delivering the best user experience at the lowest network
cost remains one of the most pressing challenges for our
customers. This trial validates the progress we have made in
delivering software-enabled tools that help network operators
increase profitability through monetisation of dynamic optical
networks and the ability to adapt to changing customer needs in
real-time," added Fischer.
The trial was powered by Coriant Aware technology and
CloudWave optics and successfully demonstrated in-service
optical margin measurement without the need for additional
equipment. The two parties say that by correctly assessing
residual margin it can enable higher throughput, policy based
margin assignments and preventive maintenance.
"We were very pleased with the results of this trial, which
proved out the operational value of optical performance
awareness based on accurate residual margin measurement during
real-time operations and state-of-life fibre conditions," said
Fridström describes the use of residual margin as the
built-in extra capacity on networks that acts almost as a
buffer in case the network performs unpredictably.
"Before you would have to calculate
margins for the system manually and for every eventuality
because you didn’t know how the system was going
to perform over time, now we know the everyday margins of the
system because we able to monitor it in real-time we are able
to put traffic on our systems and use the capacity on the
system more efficiently." In addition, Fischer says that this
unused residual margin can be monetised and it presents itself
as a new business opportunity.
The two say that the biggest challenge from the trials aside
from the technical aspects of the implementing the technology
was the fact that it was tested on Telia’s live
network so it could have real world consequences if anything
went wrong. But as Fridström said: "if we never test it we
will never know."
With the trials now a success the next step for Telia,
according to Fridström, is to start using the technology
and have it deployed to the entire network.
As for Coriant, Fischer said the company wants to look into
other areas where it can automate in a similar fashion adding
"we need to find additional use cases for this technology."