[16NG] [Technical Errata Reported] RFC5121 (1768)

RFC Errata System <rfc-editor@rfc-editor.org> Thu, 23 April 2009 12:04 UTC

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Subject: [16NG] [Technical Errata Reported] RFC5121 (1768)
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The following errata report has been submitted for RFC5121,
"Transmission of IPv6 via the IPv6 Convergence Sublayer over IEEE 802.16 Networks".

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=5121&eid=1768

--------------------------------------
Type: Technical
Reported by: Daan Pareit <daan.pareit@intec.ugent.be>

Section: 6.3

Original Text
-------------
The Len parameter has a size of 11 bits. Hence, the total MAC PDU size is 2048 bytes.

Corrected Text
--------------
The Len parameter has a size of 11 bits. Hence, the total MAC PDU size is 2047 bytes.

Notes
-----
There are 11 bits for indicating the size of the MAC PDU, thus according to me this indicates a maximum size of (binary) 111 1111 1111, which equals (decimal) 2047 (2**11 - 1).
The maximum of 2047 is also cited in the book "Fundamentals of WiMAX" by Jeffrey G. Andrews, Arunabha Ghosh and Rias Muhamed on page 48: "The maximum frame length is 2,047 bytes, which is represented by 11 bits in the GMH."

Kind regards,

-- 
Daan Pareit
PhD student

IBCN, an IBBT research partner
Ghent University
Department of Information Technology
Gaston Crommenlaan 8 box 201
9050 Ghent, Belgium
E-mail: daan.pareit@intec.UGent.be
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Secr. +32 (0) 9 33 14900
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WWW: http://www.ibbt.be

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--------------------------------------
RFC5121 (draft-ietf-16ng-ipv6-over-ipv6cs-11)
--------------------------------------
Title               : Transmission of IPv6 via the IPv6 Convergence Sublayer over IEEE 802.16 Networks
Publication Date    : February 2008
Author(s)           : B. Patil, F. Xia, B. Sarikaya, JH. Choi, S. Madanapalli
Category            : PROPOSED STANDARD
Source              : IP over IEEE 802.16 Networks
Area                : Internet
Stream              : IETF
Verifying Party     : IESG