Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channel Type allocation policy
Stewart Bryant <stbryant@cisco.com> Wed, 01 October 2008 16:15 UTC
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Date: Wed, 01 Oct 2008 17:12:51 +0100
From: Stewart Bryant <stbryant@cisco.com>
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To: Vishwas Manral <vishwas.ietf@gmail.com>
Subject: Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channel Type allocation policy
References: <0458D2EE0C36744BABB36BE37805C29A029C6251@FRVELSMBS11.ad2.ad.alcatel.com> <ba6305ea8b6f7b41bae8dcbb49c37c7c@mail.cph.tpack.net> <77ead0ec0810010847r10efb0f0ncb4e24f5d9b4c492@mail.gmail.com>
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Cc: "l2vpn@ietf.org" <l2vpn@ietf.org>, BOCCI Matthew <Matthew.Bocci@alcatel-lucent.com>, "mpls@ietf.org" <mpls@ietf.org>, "ccamp@ietf.org" <ccamp@ietf.org>, "mpls-tp@ietf.org" <mpls-tp@ietf.org>, "pwe3@ietf.org" <pwe3@ietf.org>, Shahram Davari <davari@tpack.com>
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Vishwas Manral wrote: > Hi Matthew, > > I would like to propose another option if it is for vendor proprietery > "Channel Type" values in the ACH header. With the number of values of > the channel type being limited and the number of vendors actually a > lot, I would think something in the lines of what the draft below > talks about may make sense: > > http://tools.ietf.org/draft-ietf-isis-proprietary-tlv-00 > > The idea is give a channel type value, for vendor specific > implemntations and further define the structure of the next header > value for such a "channel type" to actually have a Vendor OUI value. > > This will allow for unlimited innovation without affecting > interoperability, unlike the other options you have mentioned. > > Thanks, > Vishwas > Vishwas We have 65000 units of innovation, and that is without expanding into the next octet which is currently reserved for expansion. Given that we have not yet run out of UDP ports I don't think we need to be concerned in that regard. The reason that we have been very cautious in the past is because we don't want anything that goes on in the ACH straying into the dataplane - for example no one using the ACH as a PID and requiring the forwarder to look at it. Then when we designed VCCV we had all sorts of concerns over traffic volume and security of traffic delivered straight to the management processor. We were very cautious when we standardized the ACH mechanism, there is a good case for maintaining that caution until we see what people are going to use it for. Stewart (speaking as myself)
- RE: [PWE3] FW: Changes to PW ACH Channel Type all… Shahram Davari
- FW: [PWE3] Changes to PW ACH Channel Type allocat… BOCCI Matthew
- RE: [mpls-tp] FW: [PWE3] Changes to PW ACH Channe… Shah, Himanshu
- Re: [mpls-tp] FW: [PWE3] Changes to PW ACH Channe… Thomas D. Nadeau
- Re: [PWE3] FW: Changes to PW ACH Channel Type all… Vishwas Manral
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Stewart Bryant
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Thomas D. Nadeau
- Re: [PWE3] [mpls-tp] FW: Changes to PW ACH Channe… Andrew G. Malis
- Re: [PWE3] Changes to PW ACH Channel Type allocat… Shane Amante
- RE: [PWE3] FW: Changes to PW ACH Channel Type all… BUSI ITALO
- RE: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… BUSI ITALO
- Re: [mpls] [PWE3] FW: Changes to PW ACH Channel T… Stewart Bryant
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Vishwas Manral
- Re: [mpls] FW: [PWE3] Changes to PW ACH Channel T… Loa Andersson
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Thomas D. Nadeau
- RE: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Shahram Davari
- RE: [mpls] [PWE3] Changes to PW ACH Channel Type … BRUNGARD, DEBORAH A, ATTLABS
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Shane Amante
- Re: [PWE3] [mpls-tp] FW: Changes to PW ACH Channe… Loa Andersson
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Vishwas Manral
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Shane Amante
- RE: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Shahram Davari
- RE: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… BOCCI Matthew
- Re: [mpls] [mpls-tp] [PWE3] FW: Changes to PW ACH… Huub van Helvoort
- RE: [mpls-tp] [mpls] [PWE3] Changes to PW ACH Cha… julien.meuric
- Re: [mpls] [mpls-tp] [PWE3] FW: Changes to PW ACH… Lou Berger
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Thomas D. Nadeau
- RE: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Shahram Davari
- RE: [Bulk] Re: [PWE3] [mpls-tp] FW: Changes to PW… Shahram Davari
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Ben Niven-Jenkins
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Ben Niven-Jenkins
- Re: [Bulk] Re: [PWE3] [mpls-tp] FW: Changes to PW… Thomas D. Nadeau
- Re: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… Shane Amante
- RE: [mpls-tp] [mpls] [PWE3] Changes to PW ACH Cha… BUSI ITALO
- RE: [mpls] [PWE3] FW: Changes to PW ACH Channel T… BUSI ITALO
- RE: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… BUSI ITALO
- Re: [mpls] [PWE3] FW: Changes to PW ACH Channel T… Stewart Bryant
- RE: [mpls-tp] [PWE3] FW: Changes to PW ACH Channe… BUSI ITALO
- RE: [mpls] [PWE3] FW: Changes to PW ACH Channel T… BUSI ITALO
- RE: [PWE3] [mpls-tp] FW: Changes to PW ACH Channe… Sprecher, Nurit (NSN - IL/Hod HaSharon)
- Re: [PWE3] [mpls-tp] FW: Changes to PW ACH Channe… Luca Martini
- RE: [Bulk] Re: [PWE3] [mpls-tp] FW: Changes to PW… Shahram Davari
- RE: [PWE3] [mpls-tp] FW: Changes to PW ACH Channe… BUSI ITALO
- RE: [PWE3] [mpls-tp] FW: Changes to PW ACH Channe… BUSI ITALO
- Re: [mpls] FW: [PWE3] Changes to PW ACH Channel T… Tom Petch
- RE: [PWE3] [mpls-tp] FW: Changes to PW ACH Channe… Shahram Davari
- RE: [mpls] [PWE3] [mpls-tp] FW: Changes to PW ACH… Eric Gray
- Re: [mpls] FW: [PWE3] Changes to PW ACH Channel T… Sam Aldrin
- RE: [mpls-tp] [mpls] [PWE3] Changes to PW ACH Cha… BRUNGARD, DEBORAH A, ATTLABS
- Re: [mpls-tp] [mpls] [PWE3] Changes to PW ACH Cha… Thomas D. Nadeau
- RE: [PWE3] [mpls-tp] [mpls] Changes to PW ACH Cha… Shahram Davari
- Re: [mpls-tp] [mpls] [PWE3] Changes to PW ACH Cha… Shane Amante
- Re:Changes to PW ACH Channel Type allocation poli… Loa Andersson
- RE: [mpls-tp] FW: [PWE3] Changes to PW ACH Channe… Annamaria Fulignoli
- RE: [mpls] [mpls-tp] [PWE3] FW: Changes to PW ACH… Annamaria Fulignoli
- Re: [mpls] [PWE3] [mpls-tp] FW: Changes to PW ACH… Luca Martini
- RE: [PWE3] [mpls-tp] FW: Changes to PW ACH Channe… Maarten Vissers
- RE: [PWE3] [mpls-tp] FW: Changes to PW ACH Channe… Maarten Vissers
- RE: [PWE3] [mpls-tp] FW: Changes to PW ACH Channe… Alexander Vainshtein
- RE: [mpls] [PWE3] [mpls-tp] FW: Changes to PW ACH… julien.meuric