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Address translation in fibre channel switches

  • US 7,519,058 B2
  • Filed: 01/18/2005
  • Issued: 04/14/2009
  • Est. Priority Date: 01/18/2005
  • Status: Expired due to Fees
First Claim
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1. A method for processing frames in a fibre channel network, comprising:

  • (a) determining if an incoming frame received at a receive segment of a port of a fibre channel switch element includes an inter fabric frame header (“

    FR_Header”

    );

    (b) if there in no FR_Header in step (a), determining if there is a match from a hardware based address mapping cache;

    (c) routing the frame as a local fabric frame, if there is no match from the address mapping cache in step (b) and the incoming frame did not include the FR_Header as determined in step (a);

    (d) if there is said match from the address mapping cache in step (b) and the incoming frame did not include the FR_Header as determined in step (a) building the FR_Header; and

    (e) updating the incoming frame with a new fabric identifier so that the incoming frame is routed as an inter-fabric frame or as the local fabric frame.

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