![](//www.4rfv.com/images/no_image.jpg)
Multi-vendor metro network to combine IP layer and optical transmission layer
KDDI Corporation
Cisco Systems G.K.
Fujitsu Limited.
October 31,2023
-- Tokyo, October 31, 2023 - KDDI Corporation, Cisco Systems G.K, and Fujitsu Limited announced that on Oct 1st, 2023 they have started full-scale operations of the metro network, a regional network that combines the IP layer network and optical transmission layer network for streamlined operations.
The metro network features a configuration [
1] that integrates the IP layer and optical transmission layer by using Cisco NCS5500 series routers, which can directly transmit and receive optical signals for WDM [
2], and Fujitsus 1FINITY series [
3] Open Line System (OLS), which can be connected to other companies products through an open interface. This approach makes it possible to reduce the number of devices compared to a conventional configuration that connects a router and a transponder [
4] for WDM, reducing power consumption by approximately 40%. The new configuration also makes it easier to expand capacity, enabling rapid response to increases in communications traffic. KDDI plans to deploy the metro network across Japan by the end of fiscal 2028.
Background With the nationwide rollout of 5G services in Japan, which are now in widespread use, the number of users of video and other data-intensive services is increasing, and the volume of communications is growing rapidly. KDDI aims to achieve net-zero CO2 emissions in its non-consolidated business activities by FY2030, which will make it necessary to reduce power consumption throughout its business. The rapid expansion of network infrastructure to cope with the increases in communication volume present an ongoing challenge to this objective.
Features of the metro network KDDI has introduced this configuration to its metro network in some areas of Japan starting in 2021. As KDDI has confirmed stable operation, it will start full-scale operations to accommodate multiple services such as 5G, au HIKARI, and corporate VPN.
1. Reduced power consumption and space saving by fusion of IP layer and optical transmission layer The new configuration eliminates the need for an enclosure to mount the WDM transponder, which was previously installed externally, thereby reducing power consumption, and saving equipment installation space. The WDM transponder is miniaturized into an optical module and mounted in a Cisco router. The optical module itself has been optimized for low-power consumption through improvements in the semiconductor manufacturing process.
2. Openness enables rapid facility expansion The Fujitsu OLS 1FINITY series adopted for the metro networks inter-station transmission lines supports open interfaces, allowing connection to a variety of equipment, including products from other manufacturers. Therefore, when expanding the transmission capacity between stations, the capacity can be expanded only by adding hardware or changing setting on the router side. This enables a quick response to future growth in communication traffic.
(e.g., from 100G to 200G)>
KDDI is promoting the construction of an all photonic network [
5] that can achieve high capacity with low power consumption, whereas the convergence of the IP layer and optical transmission layer represents the first step toward an all photonic network. KDDI will continue to realize sustainable networks and contribute to the reduction of CO2 emissions by introducing architectures that contribute to the reduction of power consumption, and by making networks open.
Cisco is expanding its technologies for network sophistication, such as simplification and automation of network and device operations, to realize an inclusive future for all people in the Beyond 5G/6G era and developing technologies and ways of working that are more sustainable for the environment, as well as for business.
Fujitsu is promoting the creation of resilient and human-centric networks for the future, from 5G and 6G technologies to optical backbone networks, and is supporting telecommunications carriers in becoming carbon neutral by widely deploying products in the market that realize low power consumption in networks.
[1]
Configuration in which optical signals for WDM are sent directly from the router and are transmitted by OLS or WDM. Previously called IP over DWDM or IP Optical, current name is RON (Routed Optical Networking).
[2]
WDM:
Technology that multiplexes and transmits multiple optical signals of different wavelengths over a single fiber.
[3]
1FINITY Series:
Optical transmission system manufactured by Fujitsu Limited. In addition to WDM functions, blade-based function enables rapid application of the latest networking technologies and open interfaces for connectivity with third-party products.
[4]
Transponder:
Compound word for transmitter and responder; a transponder performs mutual conversion between Ethernet signals and optical signals for WDM.
[5]
All photonic network:
A network that achieves ultra-high speed, low cost, and low power consumption by transmitting optical signals as they are, without optical-electrical conversion of signals.
The information contained in the news releases is current at the time of publication. Products, service fees,service content and specifications, contact information, and other details are subject to change without notice.
Asia, Australia & Oceanic Stories
25/07/2024
Julia Zemiro, Gina Chick and Susie Youssef team up to explore more Great Austral...
24/07/2024
NITV to share the culture, ceremony and critical conversations of the Garma Fest...
24/07/2024
More than 5.7 million viewers tune into SBS's coverage as Slovenian Tadej Po...
22/07/2024
Medical Misogyny: Unpacking Gender Bias in Healthcare with SBS News Hysterical&...
17/07/2024
17 07 2024 - Media release Screen Australia and YouTube Australia announce Onlin...
15/07/2024
Tour de France 2024: Viewership reach on SBS surpasses 5 million Australians
15 July, 2024
Media releases
More than 5 million Australians have tuned into t...
12/07/2024
12 07 2024 - Media release Screen Australia and ABC announce new comedy series Optics
Optics. Photo credit: Joel Pratley
ABC and Screen Australia have annou...
11/07/2024
Australia's beloved journalist takes a deep dive into one of the nation'...
10/07/2024
10 07 2024 - Media release Shipwreck Hunters Australia back on the water for Season 2
Shipwreck Hunters Australia
Screen Australia and The Walt Disney Compan...
09/07/2024
Three new ground-breaking dramas coming to screens with fresh collection of Digi...
09/07/2024
Tour de France 2024 captivates Australians with almost 4 million viewers tuning ...
09/07/2024
09 07 2024 - Media release Applications Open for Digital Originals, and three new dramas coming to screens
(L-R) Moonbird director, co-creator and co-writer N...
05/07/2024
New NITV Radio podcast: Ngiyang. Meet the people reclaiming the Wiradyuri langua...
27/06/2024
SBS produced Arabic and Mandarin news bulletins move to regular digital news vid...
25/06/2024
SBS and SBS On Demand will simulcast the CNN Presidential Debate LIVE this Frida...
20/06/2024
New podcast Grand Gestures is the nonna bear hug we all need
20 June, 2024
Media releases
**INTERVIEWS AVAILABLE**
IMAGES HERE
Get to the heart of our de...
20/06/2024
SBS to air special program to commemorate the life of Dr Michael Mosley
20 June, 2024
Media releases
Michael Mosley: The Doctor Who Changed Britain premier...
20/06/2024
(Sydney, Australia, 20th June 2024) Techtel, the creators of inflo , today announced the release of a comprehensive Dashboard module that will form part of the ...
17/06/2024
Explore the strength and vitality of Aboriginal and Torres Strait Islander cultu...
17/06/2024
SBS News named Australia's most trusted news brand
17 June, 2024
Media releases
University of Canberra's preeminent annual report on trust in the n...
14/06/2024
NITV and SBS announce extensive line-up of music, news, entertainment, comedy an...
11/06/2024
Little J & Big Cuz returns for season four this July
11 June, 2024
Media releases
*First look here*
Award-winning animated children's series Little J ...
06/06/2024
Alone Australia confirms its place as one of 2024's biggest TV hits
6 June, 2024
Media releases
More than 4.3 million Australians tuned into Alone Aust...
05/06/2024
The pure drama of the world's biggest annual sporting event is set to be unl...
30/05/2024
After 64 days, the winner of Alone Australia has been revealed
29 May, 2024
Media releases
*Contains Spoilers*
After 64 days alone in the extreme and wild...
30/05/2024
Alone Australia finale delivers strongly as SBS confirms it will join VOZ stream...
30/05/2024
Alone Australia finale delivers strongly for national broadcaster SBS with 4.2m ...
30/05/2024
30 05 2024 - Media release Screen Australia, Australians in Film and VicScreen announce FUTURE VISION
Lee Sung Jin and Joanna Calo
Australians in Film, Scree...
24/05/2024
Alone Australia continues to build as it moves towards finale
23 May, 2024
Media releases
The program continues to deliver for SBS with significant uplifts...
23/05/2024
Alone Australia continues to build as it movies towards finale
23 May, 2024
Media releases
The program continues to deliver for SBS with significant uplift...
20/05/2024
Hamish Blake to host Alone Australia Season 2: The Reunion on 29 May
20 May, 2024
Media releases
As the season nears its end, SBS's hit series cements ...
16/05/2024
ABC and SBS bring digital radio (DAB ) services to the Gold Coast
15 May, 2024
Media releases
ABC and SBS today announced that audiences on the Gold Coast ...
15/05/2024
SBS Audio marketing campaign tells the stories of new Australians, with multilin...
13/05/2024
Eurovision delivers strong Total TV audiences for SBS, with more than 2.2 millio...
10/05/2024
SBS announces Voyager lead singer Danny Estrin as Australia's spokesperson f...
09/05/2024
Join Costa Georgiadis, Melissa Leong & Samuel Johnson For New Ground-breaking Se...
09/05/2024
Alone Australia audience continues to grow
9 May, 2024
Media releases
The program continues to deliver for SBS with significant uplifts in digital BVOD vie...
08/05/2024
The results are in from Malm Arena as Semi Final 1 participants move through to...
08/05/2024
Powerful NITV documentary Kindred to premiere during Reconciliation Week
8 May, 2024
Media releases
A journey of family, friendship and home *Watch the tr...
08/05/2024
08 05 2024 - Media release Olivia Colman and John Lithgow Star in Sophie Hyde's New Project JIMPA
Olivia Colman and John Lithgow in JIMPA. Photo credit: M...
07/05/2024
NITV appoints Michael Rennie as Presenter and Senior Producer for NITV News
7 May, 2024
Media releases
NITV has announced the appointment of Michael Rennie...
06/05/2024
Get Ready to join Dan Hong as he hits the streets in his ultimate culinary journ...
02/05/2024
Gear up for the 2024 Cycling Grand Tours on Australia's Home of Cycling, SBS
11 April, 2024
Media releases
All of the rivalry begins with the Giro d...
02/05/2024
New SBS documentary dives into one of Australia's greatest underdog stories ...
02/05/2024
Alone Australia cements its place as one of Australia's biggest hits of 2024
2 May, 2024
Media releases
Alone Australia has cemented its place as one o...
30/04/2024
Launch of SBS South Asian channel and SBS Spice, a new English language offering...
29/04/2024
29 04 2024 - Media release Screen Australia announces James J. Robinson's debut feature First Light
First Light
Principal Photography is underway on Firs...