ENABLE ⇒ PROVIDE | Re: SETTINGS_PRIORITY_SCHEME | Re: Setting to disable HTTP/2 Priorities
Kari Hurtta <hurtta-ietf@elmme-mailer.org> Wed, 31 July 2019 18:04 UTC
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To: Matthew Kerwin <matthew@kerwin.net.au>, HTTP Working Group <ietf-http-wg@w3.org>
Date: Wed, 31 Jul 2019 21:00:56 +0300
From: Kari Hurtta <hurtta-ietf@elmme-mailer.org>
CC: Lucas Pardue <lucaspardue.24.7@gmail.com>, Kari Hurtta <hurtta-ietf@elmme-mailer.org>, HTTP Working Group <ietf-http-wg@w3.org>, Dmitri Tikhonov <dtikhonov@litespeedtech.com>, Brad Lassey <lassey@chromium.org>, Kari Hurtta <khurtta@welho.com>
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Subject: ENABLE ⇒ PROVIDE | Re: SETTINGS_PRIORITY_SCHEME | Re: Setting to disable HTTP/2 Priorities
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> On Wed., 31 Jul. 2019, 02:56 Lucas Pardue, <lucaspardue.24.7@gmail.com> > wrote: > > > Hi Kari, > > > > On Tue, Jul 30, 2019 at 4:52 PM Kari Hurtta <hurtta-ietf@elmme-mailer.org> > > wrote: > > > >> Why boolean ("ENABLE") ? > > > > > > At the risk of bike-shedding, I think calling it "enable" is a bit of an > issue. The setting, as an advertisement of the sender's capability, should > say something like "will ignore" (for disabling 7540 priorities) or "can > understand" (for enabling some other scheme). > > Unless we also feel the need to advertise "will not send"? > > Cheers > -- > Matthew Kerwin Yes, SETTINGS_ENABLE_* typically changes how HTTP/2 connection is prosessed or allows some usages which otherwise produce protocol error (example: SETTINGS_ENABLE_CONNECT_PROTOCOL). Therefore these these typically allows only 0 ⇒ 1 transitions. Feature which is enabled, is not allowed to be turned off because it may effect handling of frames which are already sent by other peer. Therefore I think that SETTINGS_PROVIDE_HTTP2_PRIORITIES is better name than SETTINGS_ENABLE_HTTP2_PRIORITIES In other words this does not chahneg parsing of HTTP/2 frames. Even when this is set to 0, sending priorities does not cause protocol error. In SETTINGS_PROVIDE_HTTP2_PRIORITIES server asks client to provide (or not provide) http/2 tree priorities. ( Another possible name is SETTINGS_PROVIDE_TREE_PRIORITIES ) / Kari Hurtta
- Setting to disable HTTP/2 Priorities Brad Lassey
- Re: Setting to disable HTTP/2 Priorities Dmitri Tikhonov
- Re: Setting to disable HTTP/2 Priorities Lucas Pardue
- Re: Setting to disable HTTP/2 Priorities Brad Lassey
- Re: Setting to disable HTTP/2 Priorities Willy Tarreau
- Re: Setting to disable HTTP/2 Priorities Lucas Pardue
- Re: Setting to disable HTTP/2 Priorities Willy Tarreau
- RE: Setting to disable HTTP/2 Priorities Mike Bishop
- Re: Setting to disable HTTP/2 Priorities Kazuho Oku
- Re: Setting to disable HTTP/2 Priorities Willy Tarreau
- RE: Setting to disable HTTP/2 Priorities Mike Bishop
- SETTINGS_PRIORITY_SCHEME | Re: Setting to disable… Kari Hurtta
- Re: SETTINGS_PRIORITY_SCHEME | Re: Setting to dis… Lucas Pardue
- Re: SETTINGS_PRIORITY_SCHEME | Re: Setting to dis… Matthew Kerwin
- Re: Setting to disable HTTP/2 Priorities Willy Tarreau
- Re: SETTINGS_PRIORITY_SCHEME | Re: Setting to dis… Lucas Pardue
- ENABLE ⇒ PROVIDE | Re: SETTINGS_PRIORITY_SCHEME |… Kari Hurtta
- SETTINGS_HTTP3_PRIORITY_MASK? | Re: SETTINGS_PRIO… Kari Hurtta
- Re: ENABLE ⇒ PROVIDE | Re: SETTINGS_PRIORITY_SCHE… Lucas Pardue
- SETTINGS_ENABLE_HTTP2_PRIORITIES default value | … Kari Hurtta
- Re: SETTINGS_ENABLE_HTTP2_PRIORITIES default valu… Lucas Pardue
- Re: SETTINGS_HTTP3_PRIORITY_MASK? | Re: SETTINGS_… Lucas Pardue
- Re: ENABLE ⇒ PROVIDE | Re: SETTINGS_PRIORITY_SCHE… Matthew Kerwin
- Re: SETTINGS_PRIORITY_SCHEME | Re: Setting to dis… Matthew Kerwin
- Re: ENABLE ⇒ PROVIDE | Re: SETTINGS_PRIORITY_SCHE… Kari Hurtta
- HTTP/2 (RFC7540) tree priorities exit (opt out) |… Kari Hurtta
- Re: SETTINGS_ENABLE_HTTP2_PRIORITIES default valu… Willy Tarreau
- Re: SETTINGS_ENABLE_HTTP2_PRIORITIES default valu… Willy Tarreau
- [resend] SETTINGS_HTTP2_PRIORITY_MODEL (or SETTIN… Kari Hurtta
- Re: [resend] SETTINGS_HTTP2_PRIORITY_MODEL (or SE… Willy Tarreau
- Repurpose of priority | Re: SETTINGS_PRIORITY_SCH… Kari Hurtta
- Re: Repurpose of priority | Re: SETTINGS_PRIORITY… Lucas Pardue
- Repurpose of protocol elements | Re: Repurpose of… Kari Hurtta
- Re: Repurpose of protocol elements | Re: Repurpos… Lucas Pardue
- new type number versus repurpose of existing fiel… Kari Hurtta
- Re: new type number versus repurpose of existing … Lucas Pardue
- Re: new type number versus repurpose of existing … Matthew Kerwin
- Re: new type number versus repurpose of existing … Lucas Pardue
- reserved bit from Flags field | Re: new type numb… Kari Hurtta
- Re: reserved bit from Flags field | Re: new type … Lucas Pardue
- Re: reserved bit from Flags field | Re: new type … Kari Hurtta
- Re: reserved bit from Flags field | … | Re: Setti… Kari Hurtta
- Re: reserved bit from Flags field | … | Re: Setti… Lucas Pardue
- RE: Repurpose of protocol elements | Re: Repurpos… Mike Bishop
- Re: Repurpose of protocol elements | Re: Repurpos… Lucas Pardue