I'm not sure what it is either, but I found a couple of links. In the one link I'll paste it as it is pretty short as well as the link.
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Research on Parallel Networking for TCP/IP Communication
KATSUYOSHI KITAI ¢¨1 , SATOSHI YOSHIZAWA ¢¨2 , FREDERICO MACIEL ¢¨2 , TOYOHIKO KAGIMASA ¢¨3 , YASUHIRO INAGAMI ¢¨2
¢¨1 Information Systems Business Planning Division,Hitachi,Ltd.
¢¨2 Central Research Laboratory,Hitachi,Ltd.
¢¨3 Software Division,Hitachi,Ltd.
This paper discusses the parallel networking feature that supports performance scalability to the number of network interfaces.On our experimental parallel processor,Paradise(Parallel and Data-way Oriented Information Server),we have developed a new IP routing feature that allows every network interface to communicate to and from the same client processor,thus providing scalable high-performance communication not only for a single session by using multiple network interfaces,but also for total system throughput by balancing the sessions among the network interfaces.The results of performance evaluation,using six Ethernet nodes on Paradise,ATM-LAN and three workstations,has demonstrated the effectiveness of this parallel networking feature.
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This link is:
www.ipsj.or.jp/members//Journal/Eng/3911/article012.html
Another link (which is pretty technical) is:
www.cs.ucr.edu/~cial/paratcp/Further%20R...working%20-%2095.pdf
Hope that helps.