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Re: [spring] draft-ietf-spring-srv6-network-programming-05

Parag Kaneriya <pkaneria@juniper.net> Wed, 20 November 2019 07:56 UTC

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From: Parag Kaneriya <pkaneria@juniper.net>
To: "Wang, Weibin (NSB - CN/Shanghai)" <weibin.wang@nokia-sbell.com>, Parag Kaneriya <pkaneria=40juniper.net@dmarc.ietf.org>, SPRING WG List <spring@ietf.org>
CC: Rajesh M <mrajesh@juniper.net>, "cf@cisco.com" <cf@cisco.com>, "pcamaril@cisco.com" <pcamaril@cisco.com>
Thread-Topic: draft-ietf-spring-srv6-network-programming-05
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Date: Wed, 20 Nov 2019 07:56:26 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/h76BFxBZu4c5fp6C0GPvBO6ZNMo>
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming-05
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Wouldn’t pseudo code lead to same issue ?  As per me ,  NH would be pointing to SRH when DA is local address.  NH value may not reflect SRH header “next header”.

Regards
Parag



Juniper Business Use Only
From: spring <spring-bounces@ietf.org> On Behalf Of Wang, Weibin (NSB - CN/Shanghai)
Sent: Wednesday, November 20, 2019 2:23 PM
To: Parag Kaneriya <pkaneria=40juniper.net@dmarc.ietf.org>; SPRING WG List <spring@ietf.org>
Cc: Rajesh M <mrajesh@juniper.net>; cf@cisco.com; pcamaril@cisco.com
Subject: Re: [spring] draft-ietf-spring-srv6-network-programming-05

I also have the same doubt on it;
It May be:
If (SL==0) {
If (NH=SRH) {
then POP current SRH   /**USP**/
     }
Else (NH=41 || 4) {
Then do Decapsulation outer IPx header   /**USD**/
         }
--------------------------------------
Cheers !


WANG Weibin

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On Behalf Of Parag Kaneriya
Sent: 2019年11月20日 13:18
To: SPRING WG List <spring@ietf.org<mailto:spring@ietf.org>>
Cc: Rajesh M <mrajesh@juniper.net<mailto:mrajesh@juniper.net>>; cf@cisco.com<mailto:cf@cisco.com>; pcamaril@cisco.com<mailto:pcamaril@cisco.com>
Subject: [spring] draft-ietf-spring-srv6-network-programming-05

Hello,

For a Single SID:
Endpoint behavior having "End SID with flavors USP&USD"  how to support.
Among USP, USD which must be given priority while processing the packet ?

For both of them precondition is
If (Segments Left == 0) {

As per my understanding  setting  “Single SID” having USP and USD flavor is not appropriate.

Thanks,





Juniper Business Use Only

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