Re: [dispatch] New Version of draft-vanelburg-dispatch-private-network-ind
Shida Schubert <shida@ntt-at.com> Thu, 31 October 2013 15:12 UTC
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From: Shida Schubert <shida@ntt-at.com>
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Date: Thu, 31 Oct 2013 08:12:27 -0700
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To: Mary Barnes <mary.ietf.barnes@gmail.com>
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Cc: DISPATCH <dispatch@ietf.org>
Subject: Re: [dispatch] New Version of draft-vanelburg-dispatch-private-network-ind
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Hi Mary; Thanks for the thorough reviews and suggestions. I will prepare a revised draft before and submit the draft after the blackout period is cleared reflecting the suggestions and comments you and Paul provided. Many Thanks Shida On Oct 29, 2013, at 7:11 AM, Mary Barnes <mary.ietf.barnes@gmail.com> wrote: > In reviewing the document in preparation for the PROTO write-up, I have a few comments (minor and nits) that should be addressed prior to the document being progressed. > > Regards, > Mary. > > Comments: > --------------- > > - General: domains used in this document must use a reserved domain such as "example.com" and must not use real domains. Thus, all occurrences of ericsson.com need to be changed to example.com > > - Section 1.5. Bulleted list, first bullet. I would suggest you just leave out the mention of LI. Emergency services should be a sufficient example. > > - Section 1.5, last numbered list, item 2. I had a hard time groking this sentence and had to read several times. I would suggest rewording something like (if I've properly interpreted the intent): > OLD: > Different nodes spanning over different networks may need to be > able to act differently on type of traffic, when implicit schemes > are used, it would require distribution of such enterprise > specific logic over multiple nodes in multiple operators. That > is clearly not a manageable architecture and solution. > > NEW: > Nodes spanning multiple networks often need to have different > behavior depending upon the type of traffic. When this is done using implicit > schemes, enterprise specific logic must be distributed across multiple > nodes in multiple operator's networks. > That is clearly not a manageable architecture and solution. > > > - Section 1.5, last sentence. I don't think that statement is sufficient for what this document is doing. I would suggest you change that sentence to something like the following: > OLD: > Given the above background this document will formulate requirements > for SIP to support an explicit private network indication. > > NEW: > Based on the background provided, this document formulates requirements > for SIP to support an explicit private network indication and defines > a P-header, P-Private-Network-Indication, to support those requirements. > > > - Section 3, next to last paragraph. I'm not sure what is meant by "the filling out a Spec(T)". I don't see "filling" used as a concept in RFC 3324. Perhaps, "specifying a Spec(T)" is more consistent with terminology in RFC 3324. > > - Section 5. In general, the requirements are not specific consistently - i.e., some use 2119 language and others not and there is not consistent capitalization. I would suggest the following changes. > R2: "The indication from R1 can be inserted by a SIP proxy" -> "The indication from R1 MAY be inserted by a SIP proxy" > R3: "The indication from R1 can be removed by a SIP proxy" -> "The indication from R1 MAY be removed by a SIP proxy" > R6: "must" -> "MUST" > > - Section 6, 2nd paragraph. The "can" in the first sentence should be a "MAY" and the sentence needs to be split into two: > OLD: > A proxy server which handles a message can insert such a P-Private- > Network-Indication header field into the message based on > authentication of the source of a message, configuration or local > policy, and forward it to other proxies in the same administrative > domain or proxies in trusted domain to be handled as private network > traffic. > > NEW: > A proxy server which handles a message MAY insert such a P-Private- > Network-Indication header field into the message based on > authentication of the source of a message, configuration or local > policy. A proxy server MAY forward the message to other proxies in the > same administrative domain or proxies in a trusted > domain to be handled as private network traffic. > > > Section 9. You should be explicit about the header name in this section. The text in the first paragraph needs some work. At a minimum you need to change the "not supposed to" to something more definitive as all security issues arise because someone does something they're not supposed to. I would suggest at least making the following change: > OLD: > The private network indication defined in this document is to be used > in an environment where elements are trusted and where attackers are > not supposed to have access to the protocol messages between those > elements. Traffic protection between network elements is sometimes > achieved by using IPsec and sometimes by physical protection of the > network. In any case, the environment where the private network > indication will be used ensures the integrity and the confidentiality > of the contents of this header field. > NEW: > The private network indication defined in this document MUST only be used > in an environment where elements are trusted and where attackers are > do not have access to the protocol messages between those > elements. Traffic protection between network elements can be > achieved by using IPsec and sometimes by physical protection of the > network. In any case, the environment where the private network > indication will be used ensures the integrity and the confidentiality > of the contents of this header field. > > > Nits: > ------ > - Section 1.1: "3rd-Generqation" -> 3rd-Generation > - The terms "break-in" and "break-out" traffic are used several places in the document, but this term is never defined. These terms should be defined in Section 3. > - Figures should have Titles for readability > > > > On Wed, Sep 11, 2013 at 9:19 PM, Mayumi Ohsugi <mayumi.ohsugi@ntt-at.co.jp> wrote: > Hi, > > I have submitted the following draft: > > http://www.ietf.org/internet-drafts/draft-vanelburg-dispatch-private-network-ind-03.txt > > The draft reflects all the comments discussed in DISPATCH list. > > The major changes are as follows: > > - corrected the abstract > - corrected the term "common domain" to "pre-arranged domain" > - added 7.1.4 "P-Private-Network-Indication verification" > - editorial changes > Regards, > Mayumi > _______________________________________________ > dispatch mailing list > dispatch@ietf.org > https://www.ietf.org/mailman/listinfo/dispatch > > _______________________________________________ > dispatch mailing list > dispatch@ietf.org > https://www.ietf.org/mailman/listinfo/dispatch
- [dispatch] New Version of draft-vanelburg-dispatc… Mayumi Ohsugi
- Re: [dispatch] New Version of draft-vanelburg-dis… Mary Barnes
- Re: [dispatch] New Version of draft-vanelburg-dis… Paul Kyzivat
- Re: [dispatch] New Version of draft-vanelburg-dis… Mary Barnes
- Re: [dispatch] New Version of draft-vanelburg-dis… Shida Schubert
- Re: [dispatch] New Version of draft-vanelburg-dis… Shida Schubert
- Re: [dispatch] New Version of draft-vanelburg-dis… Mary Barnes
- Re: [dispatch] New Version of draft-vanelburg-dis… Shida Schubert
- Re: [dispatch] New Version of draft-vanelburg-dis… DRAGE, Keith (Keith)
- Re: [dispatch] New Version of draft-vanelburg-dis… Mary Barnes
- Re: [dispatch] New Version of draft-vanelburg-dis… Shida Schubert
- Re: [dispatch] New Version of draft-vanelburg-dis… Mary Barnes