A telematic engineering research group from a Spanish university is working on protocols for Fastpath Ethernet switches, a new concept of simple and compatible all-links Ethernet switch that avoids link blocking by spanning tree and provides shortest path performance. It has been implemented successfully on Linux and Openflow/NetFPGA boards. The collaboration types sought are license and technical cooperation agreements.
A research group from a Spanish university in the field of telematic engineering has developed protocols for Fastpath Ethernet switches. Fastpath ( ARP-Path) is a natural evolution of the transparent bridge paradigm to implement near shortest path bridging. Instead of interchanging topology information, short unicast paths and source rooted multicast trees are built directly in the data plane without any ancillary routing protocol, just by controlled flooding (to bridges or to hosts) of an on-demand or periodically broadcasted beacon frame. The fastest unicast path in transmission direction, among the paths permitted by the loop prevention mechanism, gets selected at every bridge. This path is then confirmed as a bidirectional, symmetric path, after reception of the unicast reply frame from the destination host or bridge(s). In this way, unicast paths and/or source rooted spanning trees are set up directly in the data plane.
The proposed FastpathUD protocol prevents loops by enforcing a simple and limited prohibition of some turns of frames at bridges instead of the full link prohibition applied by the spanning tree protocol. Throughput is close to that of shortest path protocols. Alternative mechanisms for loop prevention may be used to attain full shortest paths performance.
They are looking for big companies or SMEs manufacturers of routers, switches for license and technical cooperation agreements for international patent protection and pure hardware prototype construction and validation.
- Specific area of activity of the partner: The collaboration types they are seeking are license and technical cooperation agreements. They are looking for big companies or SMEs manufacturers of routers, switches. They also look for Ethernet switch manufacturers and investors on patent portfolios.
The tasks to be performed of the partner sought would be the support in financial collaboration for international patent protection and for advanced, pure hardware prototype construction and validation.
The competitive advantages are:
- It provides very simple and performant Ethernet Shortest Path bridging devices Zero configuration. Compatible with IEEE 802.1D standard in core-island mode.
- Ethernet switches are used everywhere but have severe limitations (blocking of many links by the spanning tree protocol to prevent loops, complex configuration).
- Ethernet Fastpath switches provide high network utilization and performance equal to Shortest Path Bridges (under standardization at 802.1aq), without the need of running complex link-state protocols on switches.
Available for demonstration
Patent(s) applied for but not yet granted