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Status: Reported (1)

RFC 6330, "RaptorQ Forward Error Correction Scheme for Object Delivery", August 2011

Source of RFC: rmt (tsv)

Errata ID: 5548
Status: Reported
Type: Technical

Reported By: Eugene Kim
Date Reported: 2018-11-07

Section 3.3.1 says:

   o  Transfer Length (F): 40-bit unsigned integer.  A non-negative
      integer that is at most 946270874880.  This is the transfer length
      of the object in units of octets.

...

      NOTE: The limit of 946270874880 on the transfer length is a
      consequence of the limitation on the symbol size to 2^^16-1, the
      limitation on the number of symbols in a source block to 56403,
      and the limitation on the number of source blocks to 2^^8.

It should say:

   o  Transfer Length (F): 40-bit unsigned integer.  A non-negative
      integer that is at most 942574504275.  This is the transfer length
      of the object in units of octets.

...

      NOTE: The limit of 942574504275 on the transfer length is a
      consequence of the limitation on the symbol size to 2^^16-1, the
      limitation on the number of symbols in a source block to 56403,
      and the limitation on the number of source blocks to 2^^8-1.

Notes:

Section 3.3.3 defines the number of source blocks (Z) as an unsigned 8-bit integer, whose maximum value is 2^^8-1 (255), and not 2^^8. This in turn changes the limit on the transfer length, which is now 56403*(2^^16-1)*(2^^8-1) = 942574504275.

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