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Smuggling and recovery of non-packet information

  • US 8,306,023 B2
  • Filed: 12/20/2004
  • Issued: 11/06/2012
  • Est. Priority Date: 12/20/2004
  • Status: Expired due to Fees
First Claim
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1. A networking apparatus comprising:

  • a plurality of blade subsystems; and

    a master system communicatively coupled to the blade subsystems, wherein a particular blade subsystem is configured to provide an additional feature in relation to processing network packets, wherein remaining blade subsystems are configured to send non-packet information to the particular blade subsystem by removing original information from a packet and replacing the original information with the non-packet information, the original information comprising a portion of a destination address of the packet, wherein the particular blade subsystem is further configured to retrieve the non-packet information from the packet, and wherein the particular blade system is further configured to restore the original information in the packet prior to forwarding the packet by the particular blade subsystem if the packet is not to be dropped by the particular blade subsystem and configured to drop the packet if the packet is for one of predetermined internet protocol (IP) addresses.

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