Partnering opportunity

Procedure of establishment, erasing of paths and forwarding frames for TCP transport connections and network bridge.


A telematic services engineer research group from a Spanish university has developed a mechanism for advanced TCP-Path Ethernet switches that explores a network of transparent bridges to establish a specific path for each new TCP (Transmission Control Protocol) connection established between two terminals. The cooperation types are technical cooperation, license and commercial agreement with technical assistance.

Partner sought

The main applications of this Ethernet switch technology are networks of data centers and computer networks in general, audio-video bridges and other types of transparent Ethernet bridges.The group is looking for companies from the telecommunications sector with the aim of reaching technical cooperation agreements, commercial agreements with technical assistance or license agreements of the technology.


The present invention from the spanish telematic services enginee research group describes mechanisms that allow to search, establish, use and delete a specific path for each TCP connection established between two terminals and a network bridge that implements said mechanisms. The diversity of the created paths is parameterizable. The invention includes a procedure for establishing paths in the network associated with each new flow of the TCP transport layer when establishing a new TCP connection between two terminals, a procedure for resending frames through that paths and a procedure for deleting them at closing the TCP connections. These procedures will be applied by TCP-Path bridges that have activated this functionality, configurable according to the requirements of the network. The group is looking for companies from the telecommunications sector with the aim of reaching technical cooperation agreements, commercial agreements with technical assistance or license agreements of the technology.

Advantages and innovations

This invention allows the paths between terminals to be established with TCP connection granularity: one path per connection, improving the distribution of load in the network. Roads are not needed to be calculated, they are obtained by exploration in the network, finding the path less loaded at each moment. In addition, the path establishment, path clearing and frame forwarding mechanisms described can be implemented in a network bridge that has the corresponding tables to associate the ports to tuples formed by MAC address pairs and origin and destination transport ports. They can also be implemented in bridges with OpenFlow and SDN (Software Defined Networking) capability.

Development stage

Under development/lab tested

Intellectual Property Rights (IPR)

Patents granted

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