Ten industry suppliers participated in a DOCSIS provisioning of EPON (DPoE) interoperability testing event at CableLabs. The Jan. 24-28 interop was the first in a series of interoperability events scheduled in 2011. The next interoperability event for DPoE products is scheduled to begin on April 11.Version 1.0 of the DPoE specifications provided the basis for the interoperability event. DPoE specifications provide requirements for Ethernet passive optical network (EPON) equipment to be provisioned using current DOCSIS provisioning systems and service concepts. The specifications also define requirements and functionality to support Metro Ethernet Forum Ethernet Private Line (EPL) service for business customers.Suppliers participating in the event include Atheros, Broadcom, Cisco, Finisar, Hitachi, Huawei, MRV, PMC-Sierra, Sumitomo and ZTE.