Colt and Infinera Complete First European Trial of 100 Gigabit Ethernet Client Services

SUNNYVALE, CA on 17 September 2010

Infinera (Nasdaq: INFN) announced today that, in partnership with Colt, a leading provider of business communications and IT managed services, it has successfully completed its first European field trial of 100 Gigabit Ethernet (100GbE) services. The trial marks an important step forward in the development of 100 Gigabit technologies to support ever-increasing bandwidth demand worldwide.

The trial consisted of prototype 100GbE client interfaces in Infinera systems in London and Frankfurt. The 100GbE service was passed over the 861 kilometer route from London to Frankfurt on Colt’s low latency network. The prototype Infinera 100GbE interfaces are fully compliant with the industry standard ratified in June 2010, known as IEEE 802.3ba. Testing and verification of the transmission were performed with an EXFO FTB-85 100 Gigabit/second (Gb/s) Packet Blazer tester.

Colt’s Chief Technology Officer, Luke Broome, commented: “We were pleased to work with Infinera on the first trial of this equipment in Europe. It is important that we support the development of next generation optical transport technologies that will allow us to meet customer demand for very high speed Ethernet services.”

Two weeks ago, Infinera announced the successful completion of a field trial involving next-generation photonic integrated circuits (PICs) successfully transmitting and receiving 100 Gigabit (100G) communications across a 1348 kilometer live network in the US. The next generation of Infinera PICs will have data capacity of 500 Gb/s. Infinera is moving aggressively to develop all the technologies required to deliver next generation optical systems to support exponentially growing bandwidth demand with the scalability and disruptive economics of photonic integration.

“Infinera’s 100GbE interfaces, our 500G PICs delivering 100G channels over the long-haul network, and our Bandwidth Virtualization capability to manage this bandwidth more flexibly and efficiently will enable us to deliver next-generation optical systems that can scale to meet the needs of our customers and the global Internet with the unique scalability and disruptive economics of photonic integration,” commented Infinera co-founder and Chief Technology Officer Drew Perkins. “We are tremendously excited to be working with Colt as we develop our next generation systems.”

EXFO provided the test equipment for the 100GbE trial. “We’re extremely pleased to partner with Colt and Infinera on their first 100GE field trial between London and Frankfurt by providing them the tools needed to meet the demand for consistent Ethernet signal quality and network performance with the industry’s only portable testing solution – the FTB-85100G Packet Blazer,” said Etienne Gagnon, EXFO’s Vice-President—Wireline Division and Corporate Marketing.

About Infinera

Infinera provides Digital Optical Networking systems to telecommunications carriers worldwide. Infinera’s systems are unique in their use of a breakthrough semiconductor technology: the photonic integrated circuit (PIC). Infinera’s systems and PIC technology are designed to provide customers with simpler and more flexible engineering and operations, faster time-to-service, and the ability to rapidly deliver differentiated services without reengineering their optical infrastructure. For more information, please visit http://www.infinera.com/.

Forward Looking Statements

This press release contains certain forward-looking statements based on current expectations, forecasts and assumptions that involve risks and uncertainties. These statements are based on information available to Infinera as of the date hereof; and actual results could differ materially from those stated or implied, due to risks and uncertainties. Forward-looking statements include statements regarding Infinera’s expectations, beliefs, intentions or strategies regarding the future, including that the trial marks a significant step towards the development of 100 Gigabit technologies; that Infinera’s prototype interfaces are fully compliant with the IEEE 802.3ba standard; and that Infinera’s next generation of 500 Gb/s PICs will provide unique scalability and disruptive economics; that the next generation of Infinera PICs will have data capacity of 500 Gb/s. Infinera is moving aggressively to develop all the technologies required to deliver next generation optical systems to support exponentially growing bandwidth demand with the scalability and disruptive economics of photonic integration; that we will be able to manage this bandwidth more flexibly and efficiently and deliver next-generation optical systems that can scale to meet the needs of our customers and the global Internet with the unique scalability and disruptive economics of photonic integration. Such forward-looking statements can be identified by forward-looking words such as “anticipated,” “believed,” “could,” “estimate,” “expect,” “intend,” “may,” “should,” “will,” and “would” or similar words. The risks and uncertainties that could cause our results to differ materially from those expressed or implied by such forward-looking statements include aggressive business tactics by our competitors, our dependence on a single product, our ability to protect our intellectual property, claims by others that we infringe their intellectual property, and our ability to respond to rapid technological changes, and other risks that may impact any of the group’s business are set forth in their annual reports on Form 10-K filed with the SEC on March 1, 2010, as well as subsequent reports filed with or furnished to the Securities and Exchange Commission. These statements are based on information available to us as of the date hereof and we disclaim any obligation to update the forward-looking statements included in this press release, whether as a result of new information, future events or otherwise.