Interoperability of symmetric 10G-EPON products was demonstrated successfully in Shanghai, China in April 2010.In teroperability among products was successfully demonstrated by four vendors: Broadcom, PMC-Sierra,Opulan and ZTE. Each vendor supplied an OLT and a variety of ONUs (supporting both 1G-EPON and symmetric 10G-EPON),connected in a multi-vendor configuration to demonstrate complete interoperability.System performance was examined for realistic and challenging test configurations that reflected the specific requirements of major service providers.These tests included physical-layer connectivity,MAC connectivity,MPCPdiscovery,dynamic bandwidth allocation,service setup,security and authentication,and connection management.

Coexistence of 1G-EPON and 10G-EPON on the same network was also demonstrated successfully,thus validating a critical feature for operators with large volumes of 1G-EPON deployed in their networks.10G-EPON’s robust and cost-effective coexistence solution protects network operators’existing 1G-EPON deployments and allows a gradualmigration to higher data rates.