Metro Ethernet Forum Certifies ZyXEL as one of Leading Companies in Carrier Ethernet Services

ZyXEL ES-3124 Series Have Been Certified as MEF-9 and MEF-14 Compliant

Hsinchu, Taiwan, September 6, 2007  -- ZyXEL Communications Corp. (TSE:2391), the world's largest gateway provider (In-Stat, 2006), today announced that ZyXEL Access Switches  ES-3124 series is aligned with the carrier-class standards for Ethernet Private Line (EPL) of Metro Ethernet Forum (MEF) and has been certified as MEF-9 and MEF-14 compliant.
MEF (Metro Ethernet Forum) is a non- profit organization with over 120 active members spanning the globe, representing all Carrier Ethernet industry groups. Members include leading network equipment and test equipment venders, service providers, OSS companies, certification labs and telecommunications system integrators. It develops technical specifications and implementation agreements to promote interoperability and deployment of Carrier Ethernet worldwide. The MEF-9 certification is a formal validation of conformance with MEF's Ethernet services standards and equipments when deployed at the UNI (User Networking Interface) and the MEF-14 certification focuses on traffic management. Members and certification receivers of MEF can take active roles in standardizing and preparing for wide-area Ethernet networking and also gain the industry positioning as well as credibility.
"It is very encouraging that our Ethernet products were certified by MEF. It's not only the recognition to ZyXEL's excellent Ethernet quality, but also is an accomplishment in the ongoing technological innovation in our company." said Alpha Chen, Assistant VP of ZyXEL's Ethernet Product Division.  "This will be an achievement towards the goal of creating a total network access solution."
Ethernet represents the most important evolutionary step in service provider networking. It is being deployed extensively for delivering high-speed business connectivity services and as the infrastructure for residential triple-play rollouts. With the reliable and scalable Carrier Ethernet technology, the fixed-line, cable and mobile operators will move to new-generation networks and catch up with the rapid growth of the communication market's with less effort.

About ES-3124 Series Access Switches
The MEF-certified ZyXEL ES-3124 series is a range of carrier-class L2+ managed access switches. The devices support comprehensive intelligent switching functionalities; such as robust performance in network resiliency, high-performance QoS, strict network access control policy and IP multicasting, offering a premium choice for cable, utility or municipal operators and service providers to adopt in Active Ethernet ETTx deployments.
About ZyXEL Communications
ZyXEL Communications Corp. (TSE: 2391), headquartered in Hsinchu, Taiwan, is the world's largest residential gateway provider (In-Stat, 2006). ZyXEL's comprehensive Internet Protocol-based (IP) networking solutions include access multiplexers, customer premise equipment, Internet security and Wireless LAN equipment, enabling high-performance network services for SOHO, small to mid-sized businesses and service providers. ZyXEL works closely with worldwide network equipment vendors, telecommunications companies, ISPs, and other major businesses. For more information, visit the company's website at