Re: [Tsvwg] Re: Last Call: draft-ietf-tsvwg-diffserv-class-aggr (Aggregation of DiffServ Service Classes) to Informational RFC

2007-10-04 Thread ken carlberg


I don't recall when was the last (Diffserv-based) QoS talk at NANOG  
or similar operator-rich meeting.  (Sure, there is the tutorial,  
but it doesn't count.)


I would be concerned if outside groups spent time arguing "foo" is  
bad, or if they advocated other positions to the same issue.  But I  
tend to feel quite uncomfortable with litmus tests based on  
inactivity of other groups/people.  My personal view is that  
advocates of that line of reasoning place a bigger burden on  
themselves in providing specific in-depth arguments.


Seems like a potential indication that most typical ISPs aren't  
working on or interested in this, this stuff is so trivial, or that  
coordination is not necessary.


i appreciate work that is trivial because its generally simple, easy  
to accomplish, and leads to fewer interoperability issues.  as for  
ISPs, its fascinating the disparity of how quiet and talkative they  
are depending on what side of the NDA you are on :-)


cheers,

-ken


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Re: [Tsvwg] Re: Last Call: draft-ietf-tsvwg-diffserv-class-aggr (Aggregation of DiffServ Service Classes) to Informational RFC

2007-10-02 Thread ken carlberg


On Oct 2, 2007, at 10:11 AM, Pekka Savola wrote:

It is not clear that consensus in the IETF and deployments is  
strong enough to approve/recommend any specific treatment for  
standards track DSCP values.


could you expand on this observation?

-ken


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Re: Last Call: draft-carlberg-trip-attribute-rp (TRIP Attribute for Resource Priority) to Proposed Standard

2007-07-11 Thread ken carlberg

Ted,


Howdy,
A couple of things about this specification confuse me, and
I'd appreciate enlightenment from the authors.  The first is that the
document spends a fair amount of time setting up the context in
which GETS or other services might use resource priority and how
this mechanism relates to the SIP resource-priority header.  In  
Section

4.2.3, though, the documents says:

An LS MAY add the ResourcePriority attribute when propagating routing
   objects   to   an  LS  in  another  domain.   The  inclusion   
of  the
   ResourcePriority  attribute  is  a  matter  of  local   
administrative

   policy.

Should the reader assume that this local administrative policy will  
follow one of the
policy approaches discussed in Section 2?  If so, should this be  
stated explicitly?  If

not, is the text in Section 2 appropriate?


Section 2 just provides context and a pointer for additional reading  
to the casual reader.  I wouldn't characterize the systems discussed  
in Section 2 as "policy approaches", and the word "policy" is also  
not mentioned in that section.  However, the section does point the  
reader to rfc-3689, which in turn discusses the term of "local  
policy", thus complimenting its usage further on in this draft.


	The second is that relatively sparseness of the Security  
Considerations,

which at the moment read:

   The document defines a new attribute for the TRIP protocol and  
has no
   direct  security considerations applied to it.  However, the  
security
   considerations for TRIP and its messages  remain  the  same   
and  are

   articulated in Section 14 of [rfc3219].

Are there no security considerations for the removal of this header  
by LSes which fail
to honor the requirement that an LS "MUST  propagate the  
ResourcePriority attribute"?


I would say no.  Taking the text in its entirety

 If received from a peer LS in another domain, an LS   MUST   
propagate

 the ResourcePriority attribute to other LSs within its domain.

the document conveys the need for consistent information  
propagated *within* a domain.  A broken implementation that fails to  
propagate the information simply reduces the filter/criteria used to  
select a gateway.


Are there any specific considerations (security or reliability)  
that apply when the Partial
flag has been set by Location Server that does not recognize the  
attribute?


Nothing beyond what is stated in rfc-3219.  Keep in mind while this  
draft defines a new attribute, it shares the same following  
characteristics of the  Communities attribute defined in rfc-3219:


   Conditional Mandatory: False.
   Required Flags: Not Well-Known, Independent Transitive.
   Potential Flags: None.

If one determines that an additional consideration (security or  
reliability) does apply when the Partial flag is set, we'll need to  
update rfc-3219 as well.


cheers,

-ken



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Re: WG Review: Recharter of Internet Emergency Preparedness (ieprep)

2006-11-30 Thread ken carlberg

I'll echo Fred's comments, and just add this...


I'd have to say that there wasn't really a clear consensus in either
direction about much of anything.


your original note asked about consensus of closing the group --  
that's the focus of the discussion point you brought to our attention  
on this list.  if you're now arbitrarily changing the basis of the  
discussion point, then its really impossible to point out a weakness  
in your conclusion or decision.  that's frustrating and winds up  
being pointless for anyone else to engage in a debate


-ken


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Re: WG Review: Recharter of Internet Emergency Preparedness (ieprep)

2006-11-30 Thread ken carlberg



I'm speaking here as an individual.  I'd like to build
consensus for my position both within the IESG and within the
community, but I realize that if I fail to build that
consensus, I cannot make this objection as a single IESG
member.


ken> Its now been about 2 weeks since the last comment was sent on
ken> this thread.  Do you feel you have reached consensus?

I sent my IESG comments two weeks ago, and Jon should be following up
with the WG chairs.


Since I (and most of the IETF list) don't have access to that private  
correspondence, I don't know if your comments addressed my above  
question of whether you feel there was consensus reached given your  
original statement/position.  I won't ask you to repeat your private  
comments, but I would appreciate your feedback on my question given  
the amount of correspondence on the IETF list concerning this thread.


As a side note, I'm a little surprised that your concluding(?)  
remarks were made in private.  When I had sent you a private comment  
on this thread a couple of weeks ago, you had responded with a desire  
that I keep my correspondence in public.  I guess its just me, but it  
just feels that your action is a bit inconsistent.


regards,

-ken


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Re: WG Review: Recharter of Internet Emergency Preparedness (ieprep)

2006-11-30 Thread ken carlberg

Sam,

Back on Nov 1'st, you started this thread with the following:

> I'm speaking here as an individual.  I'd like to build consensus
> for my position both within the IESG and within the community,
> but I realize that if I fail to build that consensus, I cannot
> make this objection as a single IESG member.

Its now been about 2 weeks since the last comment was sent on this  
thread.  Do you feel you have reached consensus?


-ken


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Re: WG Review: Recharter of Internet Emergency Preparedness (ieprep)

2006-11-06 Thread ken carlberg

It's not clear whether going on this way will achieve useful results
in a useful amount of time.


the first part of the above is a matter of opinion, which I'll  
respect but disagree with.


the second is a red herring.  if you wish a more detailed explanation  
of the timeline of milestones in IEPREP, I'll be happy to take this  
offline with you and the working group chairs.  the timeline reflects  
poorly on several people (I'll objectively include myself in one  
instance) and groups and really doesn't need to be brought up here on  
the ietf list.


-ken


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Re: WG Review: Recharter of Internet Emergency Preparedness (ieprep)

2006-11-06 Thread ken carlberg
> Pete Resnick wrote:>>> Questions abound around the mechanisms for sending an email and >> ensuring that it is delivered in a stated time interval on the >> order of minutes or that an indication of failure is returned to >> the sender...>> That, in particular, seems like a relatively easy extension to > RFC 3461 (by adding some sort of additional parameter value to > DELAY). Not exactly rocket science. Not exactly requiring > spinning up a WG.Please keep in mind that this is your (Pete Resnick's) solution to the question/issue that Fred brought up.  Your solution may be the best one, it may be part of a larger more encompassing solution, or it may not be applied.  But the point is that this part of the discussion (ie, specific solutions), and its merits, should not be here on the IETF list. Instead, we should ask whether issues/questions that motivate the re-charter are valid or at least reasonable to be addressed in IEPREP.and my apologies if I'm taking your last sentence out of context, but the thread involves re-chartering an existing WG, not starting from scratch.Its my view that the proposed re-charter is an evolutionary progression of what currently exists, as opposed to a new group or a new direction that is 180 degrees from what was done in the past.  -ken___
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Re: WG Review: Recharter of Internet Emergency Preparedness (ieprep)

2006-11-02 Thread ken carlberg

ken> Interestingly enough, the work that you mention below in your
ken> original posting...
ken> ... rfc-4542, rfc-4411, and draft
ken> -ietf-tsvwg-vpn-signal-preemption  (along with some other
ken> related work) has actually not been done in IEPREP because
ken> the group was not allowed to consider solutions.  Instead,
ken> some of the work has been pushed to TSVWG, to the groans and
ken> sometimes confusion of some of the participants of that
ken> group, who wondered what the subject of prioritization had to
ken> do with TSVWG.  Part

I think the work you cite belongs in tsvwg.  AT least 4542 and
vpn-signaling-preemption.


I mentioned the above as examples, not as a case-by-case examination  
of what should or should not be in IEPREP.  But along those lines,  
rfc-4542 (titled "Implementing an Emergency Telecommunications  
Service"), where ETS was first established in IEPREP and the draft  
deals with priority and preemption, seems odd to me to be in TSVWG.   
But if you feel differently, then we agree to disagree.



ken> of the revised charter is meant to
ken> remove this obstacle.

Which work would be permitted under the revised charter that is
currently udone elsewhere?  I may have more concerns about the revised
charter than I thought I did.


I am not speaking of any specific work other than what has been  
discussed in the proposed re-charter.  to consider otherwise is to go  
beyond what I stated.



ken> Also, as Scott Brimm has mentioned, there is a proposed
ken> liaison from the ITU to work with the IETF, with one of the
ken> working groups of interest being IEPREP.  It would seem
ken> odd to close down the group and punt the subject to them when
ken> they are approaching "us" for assistance  If IEPREP is
ken> closed, does that mean the subject gets pushed over to TSVWG?


that rather depends on what question they're asking, now doesn't it?
IF they're asking for enhancements to RSVP to deal with some ETS
issues, then yes, I'd hope the work would be done in tsvwg.  That way,
ETS requirements can be balanced against other requirements.  If they
want to change SIP, I'd hope that it would go through sipping and
eventually sip.


we will have to wait to see what they request.  all I stated was that  
they were coming to us and that it was odd to close down a group they  
were interested in working with.  Anticipating hypotheticals are not  
useful because they can put us down a rat hole that may or may not  
have substance.


-ken


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re: WG Review: Recharter of Internet Emergency Preparedness (ieprep)

2006-11-02 Thread ken carlberg
Sam,One of the objectives of the work produced by IEPREP was to lay down the ground work and put together a baseline set of requirements to start with when considering solutions.  Our intention was that the baseline then becomes a starting point where more specific requirements can be put forth.  Outside of this, solutions were definitely out of scope.My understanding is that there are others that now wish to present some more specific requirements and potential solutions that do not fall into the scope of other working groups.  So the proposed re-charter looks to be a natural extension to what has been done.Interestingly enough, the work that you mention below in your original posting..."I would assume we'd ask people working in this space totake a look at the existing ieprep output, RFC 4542, RFC 4411,draft-ietf-tsvwg-vpn-signal-preemption and other appropriatedocuments."... rfc-4542, rfc-4411, and draft -ietf-tsvwg-vpn-signal-preemption  (along with some other related work) has actually not been done in IEPREP because the group was not allowed to consider solutions.  Instead, some of the work has been pushed to TSVWG, to the groans and sometimes confusion of some of the participants of that group, who wondered what the subject of prioritization had to do with TSVWG.  Part of the revised charter is meant to remove this obstacle.Also, as Scott Brimm has mentioned, there is a proposed liaison from the ITU to work with the IETF, with one of the working groups of interest being IEPREP.  It would seem odd to close down the group and punt the subject to them when they are approaching "us" for assistance  If IEPREP is closed, does that mean the subject gets pushed over to TSVWG?-ken___
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Re: S stands for Steering [Re: Should the IESG rule or not?]

2005-06-30 Thread Ken Carlberg
> From: Brian E Carpenter 
>
> I'm supposed to be on vacation so this will be brief, but I don't 
> think that your assertion about what "the community" has said is 
> backed up by postings from a sufficient number of people to be a 
> community view.  Most people in the community haven't posted one way 
> or the other. I haven't counted, but in the recent discussions about 
> the hop by hop option, I've seen a number of messages agreeing with 
> the IESG's decision, contrasted with a large number of critical 
> postings from just a few people.

My view is that your impression of the reaction is incorrect.  in
taking the position that respondents can be classified as either: 
a) being satisfied with the IESG *decision*, b) dissatisfied or 
uncomfortable with the decision, or c) could not be clearly 
determined by the content of their response, I came up with the 
following list.

Dissatisfied Satisfied   Other
 -   -
Robert Elz   Thomas Narten  Barbara Roseman
John Leslie  Sam HartmanYakov Rekhter
Ken Carlberg Bob Hinden Scott Brim
Ralph Droms  Brian CarpenterSpencer Dawkins
Steve Silverman  Allison Mankin Thomas Hruska
Jefsey MorfinHarald Alvestrand  Randy Presuhn
John Klensin Keith MooreScott Bradner
Nick Staff   Bill Sommerfeld
Lawrence Roberts   Eliot Lear
Vint CerfJoel Halpern
Dave Crocker Margaret Wasserman
Ned FreedJeffrey Hutzelman
Grenville Armitage
Hans Kruse


I listed names so that people could object to my interpretation,
and I'm sure I made a mistake or two.  But at best, it seems the
reaction is split, and not to be viewed as objections coming from
simply a few but persistant people.

-ken

ps, I hope your vacation is going well :)


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Re: IANA Action: Assignment of an IPV6 Hop-by-hop Option

2005-06-24 Thread Ken Carlberg
>  | The proposal includes significant changes to the
>  | Internet architecture including a new TCP congestion control
>  | algorithm, new requirements for IPsec security gateways and new
>  | behavior for routers.
>
> Whether any of that is a viable proposal or not is for others to
> judge (not even the IESG I'd suggest), but it makes no difference
> what the answer is to that question for the actual request that
> was made.

there is precedence regarding concern over new efforts and their
relationship to TCP.  I can't cite chapter and verse, but I seem to 
recall that the work on reliable-multicast and BEEP (two different 
efforts altogether) were informed by the powers-that-be to be 
"TCP friendly".  the degree by which one views the new algorithm as 
"unfriendly" is something I'll defer to others more qualified than 
myself.

what I do find troubling is the arguement that new requirements 
for IPsec security gateways and new behavior for routers is an
added reason for rejecting the proposal.  in a rebuttal comment,
Thomas Narten writes:

> RFC 2780 says:
>
>> 5.5 IPv6 Hop-by-Hop and Destination Option Fields
>> 
>>   Values for the IPv6 Hop-by-Hop Options and Destination Options fields
>>   are allocated using an IESG Approval, IETF Consensus or Standards
>>   Action processes.
>
>(where those terms are defined in RFC2434.)
>
>The clear intention of the above is that assignments for HBH code
>points be conditioned on IETF review (and approval). That is, a
>document that gets published as an Internet Draft, gets reviewed, and
>then pops out as an RFC.

intention or even tradition has little weight.  The key word used
above is IESG Approval "or" standards action (ie, RFC).  That being
the case and agreed to by the IESG allows Dr. Roberts to go straight
to the IESG and ask for the extension.

Dr. Roberts may have given the IESG a jolt in being very thorough 
about what could be done with such an extension, but I side with
Robert Elz as to the relevence.  The system says that someone can
make a request for an extension to IPv6.  If there are no additional
criteria set forth for the field, and the extension doesn't clash,
it would seem that request should be satisfied.  Dr. Roberts seems
to have played within the rules.

-ken


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mailing list archives

1999-11-02 Thread Ken Carlberg

Hello,

I was wondering if someone (IAB, IESG, wg chairs, whomever) could
strongly encourage the folks that maintain archives to provide them
as a series (volumes), as opposed to a single clump/file.  Some 
archivists do provide a more structured breakdown based on month/year.  
However, others have simply a single large file (I just downloaded one 
that has its first entry dated June of 1987)
   

Thankfully, my ISP connectivity is large enough not to worry about the
time to download, but there are significant numbers of people either
behind 56/28.8k modems or behind satcom links where large file transfers
can be problematic.

I deeply appreciate the time & resources used to archive working group
mailing lists, but it would be very helpful if these folks could add
some structure to the archive.

cheers,

-ken