Re: [spring] draft-ietf-spring-srv6-network-programming-04: Section1
Ron Bonica <rbonica@juniper.net> Mon, 14 October 2019 21:08 UTC
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From: Ron Bonica <rbonica@juniper.net>
To: Robert Raszuk <robert@raszuk.net>
CC: SPRING WG List <spring@ietf.org>
Thread-Topic: [spring] draft-ietf-spring-srv6-network-programming-04: Section1
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/iKC8q8DccXJiDQw_zScVc0mOKBU>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming-04: Section1
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Robert,
A few words in the draft about the degree to which NP will respect layer boundaries might be helpful.
In IETF standards, it is always best to reveal at technology's goals early, often and completely. Ambiguity is rarely helpful.
Ron
From: Robert Raszuk <robert@raszuk.net>
Sent: Monday, October 14, 2019 3:07 PM
To: Ron Bonica <rbonica@juniper.net>
Cc: SPRING WG List <spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming-04: Section1
> That would allay fears that we were about to see an amazing layer violation.
Well P4 is here and folks are getting smarter with their hardware capabilities. My impression is that layer violation is already here - well at least all tools to get there are shipping :)
On Mon, Oct 14, 2019 at 8:54 PM Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>> wrote:
Robert,
Reading the draft, I would hope that these "non-routing" functions had something to do with the IP layer (OAM, etc). It would be helpful if you could provide a few examples and maybe even references to other drafts.
That would allay fears that we were about to see an amazing layer violation.
Ron
From: Robert Raszuk <robert@raszuk.net<mailto:robert@raszuk.net>>
Sent: Monday, October 14, 2019 2:41 PM
To: Ron Bonica <rbonica@juniper.net<mailto:rbonica@juniper.net>>
Cc: SPRING WG List <spring@ietf.org<mailto:spring@ietf.org>>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming-04: Section1
> can you give an example of a function that does go beyond mere packet routing?
An instruction(s) which triggers explicit detection of probe packet and adjusts the switching vector to special hardware to handle it
Examples: https://tools.ietf.org/html/draft-lapukhov-dataplane-probe-01<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-lapukhov-dataplane-probe-01__;!8WoA6RjC81c!RLBo_hyspstgm4WbFYdQCEjsDVz8qI2w71Phu9zXfJxB596vQm_KQvM1wAcnNnvk$>
Thx,
R.
On Mon, Oct 14, 2019 at 8:26 PM Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org<mailto:40juniper.net@dmarc.ietf.org>> wrote:
Authors,
In Section 1, you say:
"The network programming consists in combining segment routing functions, both simple and complex, to achieve a networking objective that goes beyond mere packet routing."
In your opinion, do any of the functions defined in this document go beyond mere packet routing? If so, which?
If not, can you give an example of a function that does go beyond mere packet routing?
Ron
Juniper Business Use Only
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- [spring] draft-ietf-spring-srv6-network-programmi… Ron Bonica
- Re: [spring] draft-ietf-spring-srv6-network-progr… Robert Raszuk
- Re: [spring] draft-ietf-spring-srv6-network-progr… Ron Bonica
- Re: [spring] draft-ietf-spring-srv6-network-progr… Robert Raszuk
- Re: [spring] draft-ietf-spring-srv6-network-progr… Ron Bonica
- Re: [spring] draft-ietf-spring-srv6-network-progr… Pablo Camarillo (pcamaril)