Re: [mpls] [Technical Errata Reported] RFC5960 (2533)
Stewart Bryant <stbryant@cisco.com> Fri, 08 October 2010 17:09 UTC
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Date: Fri, 08 Oct 2010 18:10:57 +0100
From: Stewart Bryant <stbryant@cisco.com>
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References: <20100929173931.1B2F0E06C4@rfc-editor.org> <38C5A032-A518-4CFA-B387-CE6F9BF01F6C@niven-jenkins.co.uk> <4CADC554.6040307@cisco.com> <4CAED96F.1090301@chello.nl>
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Cc: mpls@ietf.org, italo.busi@alcatel-lucent.com, danfrost@cisco.com, adrian.farrel@huawei.com, RFC Errata System <rfc-editor@rfc-editor.org>
Subject: Re: [mpls] [Technical Errata Reported] RFC5960 (2533)
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Hi Huub, On 08/10/2010 09:42, Huub van Helvoort wrote: > Hello Stweard, > > You replied: > >> Speaking as an author, my view is that the original text is correct, and >> the correction is not needed. > > As an author you are are an expert in this topic. > However, for the less experienced you knowledge, i.e.: The preamble was to alert the reader that I was speaking as an individual contributor, and not as an AD. I.e. this is a technical comment and not a management comment. > >> It's a fundamental of the IP protocol suite (which includes MPLS) > > that the parser knows what protocol to expect from the previous > > header or if there is no previous header from an identifier in > > the lower layer. > > may not be that obvious. > > So adding this explanation or the text proposed by Ben: > > > If a section layer does not support multiplexing then it has > > an implicit means of identifying the payload by the interface > > over which the payload arrived. Well there are a couple of problems with this. Firstly, other than in some implementations, a tunnel (i.e. an LSP) is not really an interface. Secondly if the packet arrives on a data-link, we do require the the type indicator. - Stewart
- [mpls] [Technical Errata Reported] RFC5960 (2533) RFC Errata System
- Re: [mpls] [Technical Errata Reported] RFC5960 (2… Benjamin Niven-Jenkins
- [mpls] R: [Technical Errata Reported] RFC5960 (25… BUSI, ITALO (ITALO)
- Re: [mpls] R: [Technical Errata Reported] RFC5960… Ben Niven-Jenkins
- Re: [mpls] R: [Technical Errata Reported] RFC5960… Thomas Nadeau
- Re: [mpls] R: [Technical Errata Reported] RFC5960… Huub van Helvoort
- Re: [mpls] [Technical Errata Reported] RFC5960 (2… Stewart Bryant
- Re: [mpls] [Technical Errata Reported] RFC5960 (2… Ross Callon
- Re: [mpls] [Technical Errata Reported] RFC5960 (2… Huub van Helvoort
- Re: [mpls] [Technical Errata Reported] RFC5960 (2… Stewart Bryant
- Re: [mpls] [Technical Errata Reported] RFC5960 (2… John E Drake
- Re: [mpls] [Technical Errata Reported] RFC5960 (2… Trowbridge, Stephen J (Steve)
- [mpls] R: [Technical Errata Reported] RFC5960 (25… BUSI, ITALO (ITALO)