Out of order checksum calculation for fragmented packets

Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C709S230000

Reexamination Certificate

active

07415652

ABSTRACT:
A network device having a method and computer-readable media includes a processor adapted to receive a first fragment of a packet. The first fragment includes a first portion of a payload of the packet and a header of the packet, the header comprising a checksum field. The processor receives a second fragment of the packet, the second fragment includes a second portion of the payload of the packet. The processor transmits the second fragment of the packet to a network interface controller and subsequently transmits the first fragment of the packet to the network interface controller. The network interface controller includes a checksum adder adapted to calculate a checksum of the second fragment of the packet, and calculate a checksum of the first fragment of the packet after calculating a checksum of the second fragment of the packet. The checksum of the first fragment of the packet includes the checksum of the second fragment of the packet. The checksum adder also writes the checksum of the first fragment of the packet to the checksum field in the header of the packet.

REFERENCES:
patent: 5815516 (1998-09-01), Aaker et al.
patent: 5898713 (1999-04-01), Melzer et al.
patent: 5937169 (1999-08-01), Connery et al.
patent: 5984869 (1999-11-01), Chiao et al.
patent: 6314525 (2001-11-01), Mahalingham et al.
patent: 6434620 (2002-08-01), Boucher et al.
patent: 6453345 (2002-09-01), Trcka et al.
patent: 6453357 (2002-09-01), Crow et al.
patent: 6453360 (2002-09-01), Muller et al.
patent: 6964008 (2005-11-01), Van Meter, III
patent: 6988236 (2006-01-01), Ptasinski et al.
patent: 7124205 (2006-10-01), Craft et al.
patent: 7174393 (2007-02-01), Boucher et al.
patent: 7251704 (2007-07-01), Solomon et al.
Postel, User Datagram Protocol, Aug. 28, 1980, University of Southern California Information Sciences Institute, USA.
Postel, Internet Protocol; DARPA Internet Program Protocol Specification, Sep. 1981, Univerisity of Southern California Information Sciences Institute, USA.
Braden et al., Computing the Internet Checksum, Sep. 1988, University of Southern California Information Sciences Institute, USA.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Out of order checksum calculation for fragmented packets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Out of order checksum calculation for fragmented packets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Out of order checksum calculation for fragmented packets will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4017968

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.