DCombus IRIS 520/540 EFM SHDSL modems latest SW/FW version adds comprehensive VLAN configuration possibilities for operators and managed Ethernet service providers. Port based VLAN configs include features for VLAN double tagging (Q-in-Q) with selectable 0x8100 and 0x9100 Ethernet types. With the extended VLAN features and MTU (max Ethernet packet size) of 2047 enables even the most demanding operator applications.

Design Combus Oy (DCombus) has released availability for a new Ethernet over copper product family utilizing EFM technology. EFM (Ethernet in the First Mile, IEEE 802.3ah) protocol set of specs are developed for optimizing access networks for Ethernet services. End-to-end Ethernet services are important both for service providers and subscribers since it’s used for main transport backbone and defining the service quality at the end user.