Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-11-07
2006-11-07
Nguyen, Chau (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
Reexamination Certificate
active
07133405
ABSTRACT:
An apparatus and method for an advanced multiplexing technique to allow a single host to support multiple Internet Protocol (IP) queue pairs with little or no overhead are provided. With the apparatus and method, after a queue pair is created, Internet Protocol filter attributes and values are set up for the queue pair through value added features to the standard InfiniBand “QP Modify” method. The IP filters are used during normal operations to determine which queue pair is associated with an incoming packet. During normal operations, when a channel adapter receives an Internet Protocol (IP) over InfiniBand (IB) packet, it uses one or more of several fields in the packet's transport and/or network header to determine which queue pair shall receive the packet. Thus, the host channel adapter uses the IP filters to route incoming packets to the appropriate queue pair and thereby allow more than one queue pair to be used to support IP.
REFERENCES:
patent: 5390173 (1995-02-01), Spinney et al.
patent: 6459698 (2002-10-01), Acharya
patent: 6718392 (2004-04-01), Krause
patent: 6732318 (2004-05-01), Collier et al.
Graham Charles Scott
Kashyap Vivek
Neal Danny Marvin
Recio Renato John
Sendelbach Lee Anton
Davis Cynthia L.
Glanzman Gerald H.
International Business Machines - Corporation
Nguyen Chau
Tyson Thomas E.
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