Re: [Sigtran] [Technical Errata Reported] RFC3331 (1425)

Alfred,

Sorry, but the change is still not required.  The
SDT Identifier field is 32-bits (4 octets as indicated
by the parameter length), but the value within that
field only occupies 16 its of which only 12-14 bits
are significant.  No change to the document is necessary.

--brian

Alfred Hönes wrote:                          (Fri, 16 May 2008 22:10:19)
> > RFC,
> > 
> > There is nothing the matter with the diagram or text.
> > 
> > All that this change would accomplish would be making the description
> > for the Signalling Data Terminal Identifier field be the same as the
> > description for the Signalling Data Link Identifier field, which would
> > then result in two descriptions for SDLI and none for SDTI.
> > 
> > --brian
> 
> Brian,
> Sorry, I do not understand the conclusions above.
> 
> To avoid the replication of ensuant mail exchanges and for
> the ease of prospective readers, two parallel corrections
> have been requested in one Errata Note, tagged a) and b),
> for SDTI and SDLI text, respectively, and both changing
> "32-bit" to "16-bit" to bring the text in alignment with
> the figures showing 16-bit field width.
> This 'parallel correction' style is well established.
> 
> Please reconsider your statement after closely re-reading
> the Errata Note.  Thanks.
> 
>   Alfred.
> 
> > 
> > On Fri, 16 May 2008, RFC Errata System wrote:
> > 
> >> 
> >> The following errata report has been submitted for RFC3331,
> >> "Signaling System 7 (SS7) Message Transfer Part 2 (MTP2) - User Adaptation Layer".
> >> 
> >> --------------------------------------
> >> You may review the report below and at:
> >> http://www.RFC-Editor.ORG/errata_search.php?rfc=3331&eid=1425
> >> 
> >> --------------------------------------
> >> Type: Technical
> >> Reported by: Alfred Hoenes <ah@TR-Sys.de>
> >> 
> >> Section: 3.3.4.1,p.53
> >> 
> >> Original Text
> >> -------------
> >> a)
> >> |     The SDT Identifier is a 32-bit unsigned value which may only be
> >>       significant to 12 or 14 bits depending on the SS7 variant which is
> >>       supported by the MTP Level 3 at the ASP.  Insignificant SDT
> >>       Identifier bits are coded 0.
> >> 
> >> b)
> >> |     The SDL Identifier is a 32-bit unsigned value which may only be
> >>       significant to 12 or 14 bits depending on the SS7 variant which
> >>       is supported by the MTP Level 3 at the ASP.  Insignificant SDLI
> >>       bits are coded 0.
> >> 
> >> 
> >> Corrected Text
> >> --------------
> >> a)
> >> |     The SDT Identifier is a 16-bit unsigned value which may only be
> >>       significant to 12 or 14 bits depending on the SS7 variant which is
> >>       supported by the MTP Level 3 at the ASP.  Insignificant SDT
> >>       Identifier bits are coded 0.
> >> 
> >> b)
> >> |     The SDL Identifier is a 16-bit unsigned value which may only be
> >>       significant to 12 or 14 bits depending on the SS7 variant which
> >>       is supported by the MTP Level 3 at the ASP.  Insignificant SDLI
> >>       bits are coded 0.
> >> 
> >> 
> >> Notes
> >> -----
> >> In both cases, the field width "32-bit" in the text does not match
> >> the parameter breakdown in the immediately preceding artwork.
> >> The above corrections are based on the assumption that the figures
> >> are correct and the text is in error.
> >> 
> >> Instructions:
> >> -------------
> >> This errata is currently posted as "Reported". If necessary, please
> >> use "Reply All" to discuss whether it should be verified or
> >> rejected. When a decision is reached, the verifying party (IESG)
> >> can log in to change the status and edit the report, if necessary. 
> >> 
> >> --------------------------------------
> >> RFC3331 (draft-ietf-sigtran-m2ua-15)
> >> --------------------------------------
> >> Title               : Signaling System 7 (SS7) Message Transfer Part 2 (MTP2) - User Adaptation Layer
> >> Publication Date    : September 2002
> >> Author(s)           : K. Morneault, R. Dantu, G. Sidebottom, B. Bidulock, J. Heitz
> >> Category            : PROPOSED STANDARD
> >> Source              : Legacy
> >> Area                : Legacy
> >> Stream              : IETF
> >> Verifying Party     : IESG
> > 
> > -- 
> > Brian F. G. Bidulock    | The reasonable man adapts himself to the |
> > bidulock@openss7.org    | world; the unreasonable one persists in  |
> > http://www.openss7.org/ | trying  to adapt the  world  to himself. |
> >                         | Therefore  all  progress  depends on the |
> >                         | unreasonable man. -- George Bernard Shaw |
> > 

-- 
Brian F. G. Bidulock
bidulock@openss7.org
http://www.openss7.org/
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