Re: [Tsv-art] ECMP [Tsvart last call review of draft-ietf-opsec-ipv6-eh-filtering-06]
Stewart Bryant <stewart.bryant@gmail.com> Thu, 06 December 2018 11:25 UTC
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To: Brian E Carpenter <brian.e.carpenter@gmail.com>, Ole Troan <otroan@employees.org>, Gert Doering <gert@space.net>
Cc: tsv-art <tsv-art@ietf.org>, OPSEC <opsec@ietf.org>, IETF-Discussion Discussion <ietf@ietf.org>, draft-ietf-opsec-ipv6-eh-filtering.all@ietf.org
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From: Stewart Bryant <stewart.bryant@gmail.com>
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Date: Thu, 06 Dec 2018 11:25:15 +0000
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Subject: Re: [Tsv-art] ECMP [Tsvart last call review of draft-ietf-opsec-ipv6-eh-filtering-06]
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On 06/12/2018 00:34, Brian E Carpenter wrote: > >> Of course here it is only looking for two values >> (TCP or UDP). > You too just killed SCTP ;-) Well the last time I heard about SCTP was when we were forced to include it as an option for IPFIX. How much SCTP exists in the real world? > >> If it has to look at any it has a much more complex set of tests, or a >> large vector table given the way the EH space is fragmented. > Frankly doing it without a network processor seems wrong. You can't expect > an ASIC or FPGA based device to handle the EH structures. Something that has served the IETF well over the years is not to constrain the forwarding implementation, and I think we would be wise to continue in that mould. Also we need to remember that an NP is an application specific processor, and thus has various hardware assists. No one talks about the internals of an NP, and I am not current on any vendor's design, but it is reasonable to suggest that in addition to the s/w parser there might be a h/w parser that does the heavy lifting, i.e. if IPv6 packet of expected type, dec TTL and do what the TCAM say picking this ECMP option else parse it the hard way. Then there is something that we do not talk at all about in such designs: electrical power. There is no question that it takes more power to s/w parse a packet, and sooner of later the power burn of the Internet is going to come under scrutiny, and we will be asked to reduce its carbon footprint. - Stewart - Stewart
- [Tsv-art] Tsvart last call review of draft-ietf-o… Michael Scharf
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Fernando Gont
- Re: [Tsv-art] Tsvart last call review of draft-ie… Fernando Gont
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Nick Hilliard
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Christian Huitema
- Re: [Tsv-art] Tsvart last call review of draft-ie… Nick Hilliard
- Re: [Tsv-art] Tsvart last call review of draft-ie… Christian Huitema
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Fernando Gont
- Re: [Tsv-art] Tsvart last call review of draft-ie… Fernando Gont
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Eric Rescorla
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Ole Troan
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Benjamin Kaduk
- Re: [Tsv-art] Tsvart last call review of draft-ie… Mark Andrews
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Stewart Bryant
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Stewart Bryant
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Stewart Bryant
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Christopher Morrow
- Re: [Tsv-art] Tsvart last call review of draft-ie… C. M. Heard
- Re: [Tsv-art] Tsvart last call review of draft-ie… Christopher Morrow
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Christopher Morrow
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Christopher Morrow
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Brian E Carpenter
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Christopher Morrow
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Mark Andrews
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … David Farmer
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Stewart Bryant
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Ole Troan
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Randy Bush
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Ole Troan
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Stewart Bryant
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Ole Troan
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Christian Huitema
- [Tsv-art] HbH flags [Tsvart last call review of d… Brian E Carpenter
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Brian E Carpenter
- [Tsv-art] game over, EH [Tsvart last call review … Brian E Carpenter
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- [Tsv-art] ECMP [Tsvart last call review of draft-… Brian E Carpenter
- Re: [Tsv-art] HbH flags [Tsvart last call review … Brian E Carpenter
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Stephen Farrell
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Brian E Carpenter
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Fernando Gont
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Fernando Gont
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Fernando Gont
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Christopher Morrow
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Christopher Morrow
- Re: [Tsv-art] HbH flags [Tsvart last call review … Christopher Morrow
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] HbH flags [Tsvart last call… Gert Doering
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Brian Trammell (IETF)
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Stewart Bryant
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Stewart Bryant
- Re: [Tsv-art] HbH flags [Tsvart last call review … Ole Troan
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Stewart Bryant
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Ole Troan
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Stewart Bryant
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Gert Doering
- Re: [Tsv-art] HbH flags [Tsvart last call review … Stewart Bryant
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Stewart Bryant
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Stewart Bryant
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Gert Doering
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Ole Troan
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Spencer Dawkins at IETF
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] [OPSEC] HbH flags [Tsvart last call… Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Ole Troan
- Re: [Tsv-art] HbH flags [Tsvart last call review … Stewart Bryant
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Fernando Gont
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Smith, Donald
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Ole Troan
- Re: [Tsv-art] game over, EH [Tsvart last call rev… C. M. Heard
- Re: [Tsv-art] [OPSEC] game over, EH [Tsvart last … Jared Mauch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Jared Mauch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… C. M. Heard
- Re: [Tsv-art] [OPSEC] game over, EH [Tsvart last … Smith, Donald
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Gert Doering
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Nico Williams
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Brian E Carpenter
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Brian E Carpenter
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Brian E Carpenter
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Eric Rescorla
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Jared Mauch
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Fernando Gont
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Christopher Morrow
- Re: [Tsv-art] HbH flags [Tsvart last call review … Christopher Morrow
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Eric Rescorla
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Jared Mauch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Eric Rescorla
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Pete Resnick
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Jared Mauch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Jared Mauch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Jared Mauch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Joe Touch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Nico Williams
- [Tsv-art] OT: TCP session lifetime - Re: game ove… Jared Mauch
- Re: [Tsv-art] OT: TCP session lifetime - Re: game… Nico Williams
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Eric Rescorla
- Re: [Tsv-art] OT: TCP session lifetime - Re: game… Gert Doering
- [Tsv-art] Engaging constructively [HbH flags [Tsv… Alissa Cooper
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Wes Hardaker
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Brian E Carpenter
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Wes Hardaker
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Fernando Gont
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Fernando Gont