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Upgrade strategies and forecast analysis on data center 40G/100G network

10:59 PM Parvesh Bravo 0 Comments

As a designer of the data center optical fiber network solutions, we often face the problem of network product selection, after considering the cost, operation and maintenance management, bandwidth requirement, compatible with 40G/100G etc. factors and to make a great plan, the new standard or technology may just launched, so need to do mental struggle to decide whether switch to these new products.
However, the experience teaches us that after a new standard comes out, it often takes several years from the product is introduced to the market by the vendors to the technology becomes mature, price adjustment to a reasonable level, and finally to the product popularization. After balancing the various factors and needs, the most appropriate choice is the generic products that have perfect industry standards and specifications and mature technology.
Upgrade strategies of data center 10G/40G/100G
Now, most of IDC’s 40G/100G fiber-optic network is based on IEEE802.3ba standard, and adopts parallel fiber transmission, using the pre-terminated 12-core or 24-core MPO cable as the main fiber connecting solutions for the next generation of the data center. 40G standards had been launched in 2010. Due to the price of the equipment is so high when just launched that its application has an obvious growth after 4 years. Now the technology is mature, the price is lower than before, so it attracts a large number of users to upgrade from 10G to 40G, and formed the trend of the 40G/100G network upgrade.
MPO solution is a flexible cabling system for the fiber-optic network, which compatible with 10G/40G/100G progressive upgrade, allowing users to upgrade to a higher speed, higher density basic network system at minimal investment cost, the bandwidth and return on investment will be doubled quickly.
Now we’ll introduce some upgrade strategies of common and basic cabling of 10G/40G/100G network, help users to simply understand how to choose the most appropriate basic network cabling products, and design a solution that to smooth upgrade to the next generation of data center.
10G solution
Using two 12-core MPO backbones optical cables for transmission, connect MPO-LC module box at both ends, and connect to SFP+ optical module via LC duplex jumpers to form 10G solution.
Item
Quantity
12-core MPO backbone optical cable
2
2 x 12-core MPO module box
2
LC duplex jumper
24
SFP+ optical module
24
1U MPO distribution box
2

Key product: 2 x 12-core MPO-LC module box
Product description: two pre-installed module boxes 12 core MPO-LC directly fanout jumpers, the back side is two MPO adapters, and the front panel is a two-column 12-port LC adapter.
Solution benefits: flexible cabling, plug and play, excellent cable management, flexible MAC (mobile, add and change)
Solution to upgrade 40G
Using two 12-core MPO backbone optical cable and distribution box, MPO adapter, 2 to 3 MPO conversion jumper at both ends, convert 2 x 12-core fiber channel into 3 x 8-core fiber channel, and connects 3 x 40G optical modules.
Item
Quantity
12-core MPO backbone optical cable
2
MPO adapter panel
2
2 to 3 MPO conversion jumper
2
QSFP+ optical module
6
1U MPO distribution box
2

 Key product: 2 to 3 MPO conversion jumper
Product description: 2 to 3 MPO conversion jumper uses all fiber channels (24 channels in total) of two 12-core MPO backbone optical cables, convert 2 x 12-core MPO connector into 3 x 8-core connector, and connects to QSFP+ optical modules.
Solution benefits: Make use of all fiber in the backbone system, seamless connection, trunk optical cable and distribution box can be retained, no need to replace.

Solution to upgrade 100G
Using two 12-core trunk optical cable and MPO adapter, converts 2 x 12-core MPO connectors into 1 x 24 MPO connector via 2 to 1 MPO conversion optical cable and connecting to 100G CFP optical modules.
Item
Quantity
12-core MPO backbone optical cable
2
MPO adapter panel
2
2 to 1 MPO conversion jumper
2
CFP optical module
2
1U MPO distribution box
2


Key product: 2 to 1 MPO conversion jumper
Product description: 2 to 3 MPO conversion jumper uses all fiber channels (20 channels in total) of two 12-core MPO backbone optical cables, regards 10 channel of one fiber as Tx, and uses 10 channels of another fiber as Rx to form 100G transmission, and connecting to CFP optical module via a 24-core MPO connector.
Solution benefits: the number of ports is significantly reduced, easy to manage, MPO backbone optical cable, distribution boxes, and adapters are not required to replace, is a cost-effective upgrade solution.
New 100GBase–SR4
The 100GBase-SR4 standard which released in 2015 uses 4 pairs of a channel to form 100G transmission, the transmission rate of each channel is 25G. When the technology is officially applied in the future it can use the same cabling solution as 40G, all fibers of trunk optical cable can be 100% used, and the optical module will use QSFP28 which is compatible with 100G. As long as use MPO backbone system that in line with the industry standard, even if the new technology to become the mainstream of the next generation of data centers, it also can achieve a smooth upgrade. Selecting the high compatibility and common cabling products will have more advantages in the long term.  
12-core vs 24-core MPO backbone system
Many brands recommend 24-core MPO backbone system, which can reduce the quantity of cable, and more effective for the operation and maintenance and air management. However, there are still a lot of users choose 12-core MPO backbone optical cable, we recommend 12-core MPO backbone optical cable as a flexible network upgrade strategy, the reasons mainly based on:
1.       The TIA 568-C provides a standard and comprehensive definition of 12-core and dual-core link transmissions
2.       The TIA 568-C also regulates the polarity of the 12-core cable (the fiber-optic solution), and the user can easily find compatible products on the market
3.       Most of the hand-held fiber optic testers can test 12-core MPO connectors and the polarity ofcable, convenient for installation and maintenance
4.       Using 2x12-core to 24-core (2 to 1) MPO conversion jumper, can be simply upgraded to 100G.
5.       The initial investment cost is less and practical, can be flexible upgraded.
As a comprehensive and professional communication manufacturer, Cozlink provides 8-core, 12-core and 24-core MPO jumper, the product covers 1G/10G/40G/100G, and also offers product customization services to meet the needs of user’s personalized network.

After learning the upgrade strategies of 40G/100G, the market forecast of data center 40G/100G network will be analyzed to help you know the development trend of it in the near future.
Forecast analysis on data center 40G/100G network
In recent years, with the vigorous development of cloud computing and data center, the demand of the data center for optical devices began to accelerate, Transmission network upgrades to 40G/100G.  In order to satisfy the needs of bandwidth and expand the transmission capacity, 40G/100G network has become a trend. It is predicted that the average annual compound growth rate of 40G / 100G market will reach 27.5% from 2013 to 2018, 40G and 100G optical devices will grow at a rate of 20-30% within two years, and 100G will dominate in 2016. The growth rate will exceed 40% and last for more than three years. In the past, a large part of China's transmission network has only 10G, but now the wireless base station evolved to LTE, the base station return access has reached 10G, so all levels of China's transmission network are facing upgrades. Today, optical device suppliers have been working to develop a variety of multi-source generic modules to meet the needs of system integrators for different network applications. The multi-source generic module provides a convenience for system integrators to reduce development cycles, as well as to reduce the cost of 40G, 100G core optoelectronic devices. The diagram below shows the market forecast of 10G/40G/100G from Infonetics Research.
 This image source:
http://www.telecomlead.com/news/10g-40g-100g-transceiver-market-grow-10-year-54301
Conclusion
Meanwhile, due to the explosive growth of Internet applications with rich video content and 40G low-cost optical ports may arrive within two to three years, 40G is expected to be widely deployed over the next few years. 100G will also get some small batch of trial and deployment in some operator's long-distance backbone network in the next two to three years. 40G and 100G will be developed and existed simultaneously in the operator's network in the next three to five years or even longer. For this reason, the multi-source standard module of 40G/100G have been considered as the core technology and key components of the next generation of high-speed and high-capacity optical network, and thus were highly valued by the industry. In short, the future of the data center 40G / 100G network is bright.

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