Advanced Interoperability through L2oS in Evolution® 3.3.3


The award-winning Evolution® communication platform delivers high-quality IP broadband wherever and whenever it’s needed. With the launch of Evolution 3.3.3, Layer 2 over Satellite (L2oS) offers service providers the option to run an iDirect network in an efficient Layer 2 bridging mode as an alternative to the traditional Layer 3 routing architecture.

This approach expands flexibility. A service provider can implement a variety of converged network architectures, pass any Layer 3 protocols desired, and easily modify Layer 3 architectures after deployment. Since data transport is decoupled from the overlaying network, L2oS enables new satellite service delivery models based upon carrier-grade Ethernet and facilitates converged services so that a satellite network can behave like a mainstream access network. A service provider can empower customers to configure their own networks without worry about impacting the underlying satellite network infrastructure.

L2oS emulates a standard Ethernet connection across the satellite link, forming an end-to-end network and transparent pathway for Layer 3 traffic. iDirect equipment no longer participates in routing, or interferes with Layer 3 protocols and higher layer functions. iDirect’s Protocol Processors and remotes serve as Ethernet switches that maintain MAC tables to make forwarding decisions based entirely on the information in the Ethernet header, passing entire Ethernet frames over the air. As a result, iDirect’s platform behaves not unlike a simple Ethernet cable from the port entering the hub Protocol Processor to the port exiting the site remote.

Virtual network connections are configured with VLAN or Q-in-Q tags and support L2VPN models such as Virtual Private Wire Service (VPWS) or Virtual Private LAN Service (VPLS). A network and remotes can support both Layer 2 and Layer 3 modes simultaneously, with configuration and traffic for each isolated through independent virtual networks. Traditional optimizations critical to operation are not lost; rather they’ve been expanded.

iDirect Evolution 3.3 Software