Re: [Ieprep] on the ieprep charter
Fred Baker <fred@cisco.com> Thu, 27 July 2006 21:06 UTC
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From: Fred Baker <fred@cisco.com>
Subject: Re: [Ieprep] on the ieprep charter
Date: Thu, 27 Jul 2006 14:05:46 -0700
To: "Robert G. Cole" <robert.cole@jhuapl.edu>
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I think it is possible to over-constrain the working group outputs, and so would not go into that level of detail in the charter. For example, we might decide in the course of working the issue that the division isn't worthwhile, and then find that we have to change the charter to ignore it. The important thing to me is that the charter should describe us providing a signaling solution that is - applicable to a variety of implementations, including preemptive and non-preemptive, - appropriate throughout the Internet, not just in the subset that happens to be relevant to the US Government, whether civil or military, and - addresses both inter-provider and provider/customer connectivity. I think it should also very clearly require both application layer CAC (eg, "who are you" and "what are you authorized to do" for some appropriate set of definitions) and network layer CAC (eg, at this instant, does the network have resources to address your requirements, and if not what is it going to do about that). Since the two questions are very different, there should be no assumption that only one needs to be solved or that one solution solves both. What the charter should, perhaps, address, is the status of multicast in this. We all agree we need unicast solutions. RSVP assumes that multicast is also a requirement, while NSIS presumes that it can be summarily set aside. In civilian networks where multicast is not widely deployed as a service, the point may be moot. I am told that in your organization and others in coalition with it, there are places where multicast is the predominant traffic type, however. So we have to decide whether we need to address that. On Jul 27, 2006, at 12:37 PM, Robert G. Cole wrote: > Is this something that is or should be captured within the text of > the IEPREP charter, i.e., objectives for paritioning work into > protocols at UNIs and NNIs and behaviors (where appropriate) within > network interiors? > > Bob > > Fred Baker wrote: >> On Jul 27, 2006, at 11:40 AM, Robert G. Cole wrote: >>> "There is enough similarities in the needs of these broad >>> industry segements with respect to communications requirements/ >>> needs in emergency situations that: >>> >>> a) Protocols can be enhanced (or in some cases developed) to >>> handle the similarities, while >>> >>> b) Differences are relegated to implementations or behavior >>> descriptions." >> Yes, that is my opinion. Just an opinion, mind you. But I should >> think that a common UNI and NNI signaling mechanism could be >> described that enabled every implementation (regardless of nation >> or type of network) to classify requests in an appropriate >> manner (routine or whatever other level might apply, and whether >> the customer was authorized to make the request) and then >> implement what needs to be done. In some networks, for some >> services such as VoIP and Video/IP, that will include preemption; >> in other networks, the same services will include trunk queuing >> or other approaches. For other services, such as preferring some >> elastic traffic over others and the transitive trust issues in >> delivering an email within a short stated interval, other >> considerations may also come into play. >> >> Note that I carefully separated that into three broad categories: >> UNI, NNI, and everything else. "everything else" is within a >> network, and I think that is the network's problem although I may >> have some suggestions. NNI may be able to be handled by SLAs, >> although one could argue that the entire discussion here is >> regarding edge conditions in SLAs. It is the UNI that concerns me >> the most, as it tends to be the place where the biggest problems >> occur, and where problems occur at NNIs they can be treated as a >> variety of aggregated UNI. It is the NNI and the UNI that are >> most in view in RFC 4542. >> >> One thing to consider is that the intra-network case and the NNI >> case are somewhat specialized( we are simply looking at IP >> traffic, usually in an aggregated form), while the UNI crosses a >> variety of types of products including SMTP servers, telephones >> and telephone middleware, etc ad nauseum. I think the UNI is the >> most interesting and important case. _______________________________________________ Ieprep mailing list Ieprep@ietf.org https://www1.ietf.org/mailman/listinfo/ieprep
- [Ieprep] on the ieprep charter Robert G. Cole
- Re: [Ieprep] on the ieprep charter Fred Baker
- Re: [Ieprep] on the ieprep charter Robert G. Cole
- Re: [Ieprep] on the ieprep charter Fred Baker
- Re: [Ieprep] on the ieprep charter Robert G. Cole
- Re: [Ieprep] on the ieprep charter Howard C. Berkowitz
- RE: [Ieprep] on the ieprep charter (UNCLASSIFIED) Nguyen, An P CIV NCS NC2
- RE: [Ieprep] on the ieprep charter (UNCLASSIFIED) Howard C. Berkowitz
- Re: [Ieprep] on the ieprep charter Fred Baker
- RE: [Ieprep] on the ieprep charter (UNCLASSIFIED) Rex Buddenberg
- Re: [Ieprep] on the ieprep charter ken carlberg
- [Ieprep] Question about the IEPREP Recharting Pro… Hannes Tschofenig
- Re: [Ieprep] on the ieprep charter Rex Buddenberg
- Re: [Ieprep] on the ieprep charter Fred Baker
- Re: [Ieprep] on the ieprep charter Janet P Gunn
- Re: [Ieprep] on the ieprep charter ken carlberg
- Re: [Ieprep] Question about the IEPREP Recharting… ken carlberg
- Re: [Ieprep] Question about the IEPREP Recharting… Hannes Tschofenig