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Re: [spring] draft-ietf-spring-srv6-network-programming-04: Section 2

li zhenqiang <li_zhenqiang@hotmail.com> Thu, 17 October 2019 04:15 UTC

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From: li zhenqiang <li_zhenqiang@hotmail.com>
To: "Pablo Camarillo (pcamaril)" <pcamaril@cisco.com>, Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: Re: [spring] draft-ietf-spring-srv6-network-programming-04: Section 2
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Date: Thu, 17 Oct 2019 04:15:45 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/AYu-dYprE_WwrVnLIpMBcoBEsH8>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming-04: Section 2
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Hi Pablo,

I believe the sentence you quote is used to suggest the node be prepared to handle WRONG packet, not suggesting the node to generate WRONG packet.
Sorry I am not an English native speaker. I hope I am right.

Best Regards,
Zhenqiang Li
________________________________
li_zhenqiang@hotmail.com

From: Pablo Camarillo (pcamaril)<mailto:pcamaril@cisco.com>
Date: 2019-10-16 00:45
To: Ron Bonica<mailto:rbonica=40juniper.net@dmarc.ietf.org>; SPRING WG List<mailto:spring@ietf.org>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming-04: Section 2
Ron,

That sentence is there on purpose. RFC8200:
   IPv6 nodes must accept and attempt to process extension headers in
   any order and occurring any number of times in the same packet

I will update that sentence in the next revision of the draft to make it more formal and include the normative reference:
“As per [RFC8200], multiple occurrences of the SRH might be present in the same IPv6 header.”

Cheers,
Pablo.


From: spring <spring-bounces@ietf.org> on behalf of Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
Date: Monday, 14 October 2019 at 20:28
To: SPRING WG List <spring@ietf.org>
Subject: [spring] draft-ietf-spring-srv6-network-programming-04: Section 2

Authors,

In Section 2 of draft-ietf-spring-srv6-network-programming-04, you say:

“SRH: Segment Routing Header as defined in  [I-D.ietf-6man-segment-routing-header].  We assume that the SRH may be present multiple times inside each packet.”

Did you mean to remove the final sentence?

                                     Ron



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