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Method and system for using extended fabric features with fibre channel switch elements

  • US 7,990,975 B1
  • Filed: 02/01/2010
  • Issued: 08/02/2011
  • Est. Priority Date: 07/21/2003
  • Status: Active Grant
First Claim
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1. A method for processing a frame at a transmit segment of a port of a switch element, comprising:

  • (a) determining if support for a virtual storage area network (“

    VSAN”

    ) is enabled at the port of the switch element;

    (b) if VSAN support is enabled, determining if an encapsulation mode for the port is enabled for processing a tagging header that includes a VSAN identifier value for identifying the VSAN,(c) if the encapsulation mode is enabled, determining if hard zoning is enabled;

    wherein hard zoning is used to enforce a frame by frame zoning by the switch element;

    (d) if hard zoning is enabled, then verifying if a domain value in a source identifier of a frame header of the frame matches with a domain entry of an address look up table (ALUT);

    wherein the entries of the address look up for the verification are selected based on if a zone mask using an area field or a port identifier field is enabled;

    (e) removing the tagging header from the frame when the encapsulation mode is enabled; and

    (f) transmitting the frame to a destination.

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