Re: [apps-discuss] Missing IANA Considerations for TFTP

[Mykyta Yevstifeyev <[e-mail]>]

21.08.2011 20:49, Frank Ellermann wrote:
> On 21 August 2011 11:38, Mykyta Yevstifeyev wrote:
>
>> currently IANA doesn't maintain any registries related to TFTP
> Arguably "bootp-dhcp-parameters" is related, maybe TFTP assignments
> could be merged into this existing registry.

I had a look at this registry - it isn't related to TFTP in any way 
other than listing several DHCP options related to TFTP.

>
>> Is it useful to write and publish the document defining IANA
>> considerations for TFTP?
> The authors of RFCs 2347..2349 apparently decided that it was not
> necessary to create TFTP registries in 1998.  Only a wild guess,
> "missing" IANA considerations cannot say why they are "missing".
> Did you look into old mailing list archives?

Well, the only WG ever chartered and related to TFTP is some way is 
tftpext, which produced RFCs 1782-1784 
(http://tools.ietf.org/wg/tftpexts/).  IETF site has no archives; 
neither have some non-IETF archives (I found 
http://mirrors.fe.up.pt/pub/rfc/concluded-wg-ietf-mail-archive/tftpexts/ 
and 
http://ftp.sh.cvut.cz/MIRRORS/ietf/concluded-wg-ietf-mail-archive/tftpexts/).  
The original mailing list was hosted at hpindsh.cup.hp.com and original 
archive was placed at 
onet2.cup.hp.com/pub/dist/tftpexts/tftpexts_archive (see 
http://webcache.googleusercontent.com/search?q=cache:xueLfMKFuxoJ:ftp://ftp.ietf.org/ietf-online-proceedings/94dec/area.and.wg.reports/app/tftpexts/tftpexts.malkin.slides.ps+Tftpexts+mailing+archive&cd=1&hl=en&ct=clnk&client=firefox&source=www.google.com).  
However, none of those servers responded to me; so I conclude it is 
impossible to find tftpext archives.

RFCs 2347..2349 were Individual Submissions, and their only purpose, I 
guess, was to advance tftpext stuff to Draft Standard.

IESG "protocol action" message 
(http://www.ietf.org/mail-archive/web/ietf/current/msg05939.html) 
doesn't have the "community consensus" section, which would point me to 
some discussion forum.  It mentions, though, that IESG contact person is 
Harald Alvestrand, whom I'm cc'ing this message to supposing he has some 
additional info for this topic.

So now I have no idea why TFTP IANA considerations are missing.

>
> If it is a general IANA registry problem let's discuss it on the
> "happy IANA" list.  The service-names-port-numbers.xml is *huge*,
> but the TFTP ports, four SUBNTBCST_TFTP variants, tftp-mcast,
> etftp, and tftps are listed.  But this registry doesn't tell me
> what ETFTP, TFTPS, etc. really was or is.

I guess the situation is:

tftp - RFC 1350;
subntbcast-tftp - have no idea what is stands for;
tftps - I suppose this is used with something like an "adaptation of 
4217 for TFTP";
tftp-mcast - 
https://datatracker.ietf.org/doc/draft-koren-tftp-multicast-option/; 
https://datatracker.ietf.org/doc/draft-rfced-exp-yung/;
etftp - RFC 1986; http://www.networksorcery.com/enp/protocol/etftp.htm.

Mykyta Yevstifeyev

>
> -Frank
>