Fwd: Re: Fwd: Summary of proposed changes to draft-gont-tsvwg-source-quench
Fernando Gont <fernando@gont.com.ar> Wed, 01 December 2010 22:58 UTC
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Date: Wed, 01 Dec 2010 19:59:24 -0300
From: Fernando Gont <fernando@gont.com.ar>
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Subject: Fwd: Re: Fwd: Summary of proposed changes to draft-gont-tsvwg-source-quench
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Folks, FYI, feedback by Andrew Yourtchenko. FWIW, Dan Wing and Scott Bradner agreed with my notes, too (off-list). Thanks! Kind regards, Fernando -------- Original Message -------- Subject: Re: Fwd: Summary of proposed changes to draft-gont-tsvwg-source-quench Date: Wed, 1 Dec 2010 23:14:04 +0100 (CET) From: Andrew Yourtchenko <ayourtch@cisco.com> To: Fernando Gont <fernando@gont.com.ar> Hi Fernando, On Wed, 1 Dec 2010, Fernando Gont wrote: > Hi, Andrew, > > BTW, interested in your comments -- if you have any. thanks for the opportunity! Inline below, nothing major... cheers, andrew > > Thanks! > > Kind regards, > Fernando > > > > > -------- Original Message -------- > Subject: Summary of proposed changes to draft-gont-tsvwg-source-quench > Date: Wed, 01 Dec 2010 18:56:01 -0300 > From: Fernando Gont <fernando@gont.com.ar> > To: tsvwg <tsvwg@ietf.org> > CC: Fred Baker <fred@cisco.com>, "gorry@erg.abdn.ac.uk" > <gorry@erg.abdn.ac.uk>, Dan Wing <dwing@cisco.com>, > Antonio.DeSimone@jhuapl.edu, "Mahesh Jethanandani (mahesh)" > <mahesh@cisco.com> > > Folks, > > I plan to produce a revision of the aforementioned I-D soon. These are > the changes that have so far been proposed to the current I-D, and my > read of where consensus seems to be. > > Please respond to each of these: > > 1) Do *not* update the "SHOULD NOT generate ICMP SQ" in RFC 1812 to > "MUST NOT generate ICMP SQ". > > My read of the comments received so far is that the current "SHOULD NOT > generate ICMP SQ" text in RFC 1812 is fine "as is", as generating ICMP > SQ does not raise interoperability problems. > agree with this. > (although I guess some might argue that since ICMP SQ consumes > bandwidth, this might exacerbate congestion?) I suppose they are rate-limited, so this is a bit far-fetched scenario imho :-) > > > 2) Update the text in RFC 1812 that states "A router MAY ignore any ICMP > Source Quench messages it receives". > > The resulting text would s/MAY/SHOULD/. This would align the > requirements for routers with the requirements for hosts (of ignoring > ICMP SQs) I think from the practical standpoint it would not matter much, so I am in "weak agreement" on this one. > > > 3) Update the text in RFC 1122 that states "If a Source Quench message > is received, the IP layer MUST report it to the transport layer (or ICMP > processing)." > > The resulting text would read: "If a Source Quench message is received, > the IP layer MAY silently discard it. +1. > > > 4) Update the security considerations section noting that most host > implementation currently ignore ICMP SQ (as noted in RFC 5927), and > mention that they could be filtered at firewalls if deemed necessary (no > normative language here, though) > +1. > > 5) Have this document obsolete RFC 1016 (Prue, W., and J. Postel, "The > Source Quench Introduced Delay (SQuID)") > > So far I have received one positive comment about this one (off-list). > More comments needed/wanted. > quote from RFC1016: "This is an "crazy idea paper" and discussion is essential." As such I don't think it is worth obsoleting - as far as I see it does not have any status at all. > > 6) Note that ICMPv6 didn't bother to specify an IPv6 version of ICMP SQ > (this is just an informational note) makes sense. cheers, andrew > > Thanks! > > Kind regards, > -- > Fernando Gont > e-mail: fernando@gont.com.ar || fgont@acm.org > PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1 > > > >
- Summary of proposed changes to draft-gont-tsvwg-s… Fernando Gont
- Re: Summary of proposed changes to draft-gont-tsv… Fred Baker
- Fwd: Re: Fwd: Summary of proposed changes to draf… Fernando Gont
- Re: Summary of proposed changes to draft-gont-tsv… Fernando Gont
- Re: Summary of proposed changes to draft-gont-tsv… Fred Baker
- Re: Summary of proposed changes to draft-gont-tsv… Fernando Gont
- Re: Summary of proposed changes to draft-gont-tsv… DeSimone, Antonio