Re: [secdir] secdir review of draft-ietf-avt-rtp-cnames-02
"Ali C. Begen (abegen)" <abegen@cisco.com> Wed, 22 December 2010 16:07 UTC
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Date: Wed, 22 Dec 2010 08:09:21 -0800
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Thread-Topic: secdir review of draft-ietf-avt-rtp-cnames-02
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From: "Ali C. Begen (abegen)" <abegen@cisco.com>
To: "DRAGE, Keith (Keith)" <keith.drage@alcatel-lucent.com>, "Dan Wing (dwing)" <dwing@cisco.com>, Tobias Gondrom <tobias.gondrom@gondrom.org>, iesg@ietf.org, secdir@ietf.org, draft-ietf-avt-rtp-cnames.all@tools.ietf.org
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Cc: csp@csperkins.org, even.roni@huawei.com, rjsparks@nostrum.com
Subject: Re: [secdir] secdir review of draft-ietf-avt-rtp-cnames-02
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> -----Original Message----- > From: DRAGE, Keith (Keith) [mailto:keith.drage@alcatel-lucent.com] > Sent: Wednesday, December 22, 2010 11:02 AM > To: Dan Wing (dwing); 'Tobias Gondrom'; iesg@ietf.org; secdir@ietf.org; draft-ietf-avt-rtp-cnames.all@tools.ietf.org > Cc: Ali C. Begen (abegen); csp@csperkins.org; even.roni@huawei.com; rjsparks@nostrum.com > Subject: RE: secdir review of draft-ietf-avt-rtp-cnames-02 > > Just coming back on the following: > > > > 2.3. in section 4.2. next to last paragraph it states: > > (other methods) > > > "beyond the three methods listed above, are not compliant with this > > > specification and SHOULD NOT be used." > > > If the document is std track and updates 3550 and uses > > "MUST" for the > > > methods it would be inconsistent to frame it here as "SHOULD NOT". > > > > We will delete the sentence that says: > > > > Other methods, beyond the > > three methods listed above, are not compliant with this > > specification > > and SHOULD NOT be used. > > > > because it is really saying "if you don't comply with this > > document's requirements, you aren't in compliance with this > > document" -- which is a silly thing to say. > > > > This sentence was added as a result of my comment in the document shepherd review as follows: > > "1) Section 3 contains the following statement: > > The recommendation in [RFC3550] is to generate an RTCP CNAME of the > form "user@host" for multiuser systems, or "host" if the username is > not available. The "host" part is specified to be the fully > qualified domain name (FQDN) of the host from which the real-time > data originates. While this guidance was appropriate at the time > [RFC3550] was written, FQDNs are no longer necessarily unique, and > can sometimes be common across several endpoints in large service > provider networks. Thus, the use of FQDN as the CNAME is strongly > discouraged. > > Given the statement above, can you point me at the SHOULD requirement that I would expect to see relating to this in > section 4." > > So if we no longer have that added text in section 4, then we need to go back and revisit section 3, and particularly the > sentence: "Thus, the use of FQDN as the CNAME is strongly discouraged." because it no longer is discouraged by this > document. > > An alternative statement in section 3 would be: "This document replaces the use of FQDN as a CNAME by alternative > mechanisms." This replacement works. Thanks, acbegen. > regards > > Keith
- [secdir] secdir review of draft-ietf-avt-rtp-cnam… Tobias Gondrom
- Re: [secdir] secdir review of draft-ietf-avt-rtp-… Dan Wing
- Re: [secdir] secdir review of draft-ietf-avt-rtp-… DRAGE, Keith (Keith)
- Re: [secdir] secdir review of draft-ietf-avt-rtp-… Ali C. Begen (abegen)