Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn

"Dongjie (Jimmy)" <jie.dong@huawei.com> Thu, 16 July 2020 02:20 UTC

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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: Linda Dunbar <linda.dunbar@futurewei.com>, James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Date: Thu, 16 Jul 2020 02:20:32 +0000
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi Linda,

Thanks a lot for your support and comments. Please see some replies inline with [Jie]:

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Linda Dunbar
Sent: Thursday, July 16, 2020 4:54 AM
To: James Guichard <james.n.guichard@futurewei.com>om>; spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn

I support the WG adoption of this draft.

I think it is a really good idea for each Virtual Network to have its own SIDs.
A couple questions to the authors:

Page 9: Figure 1: The Red network has same SID on A & B for the path between them. But between B & E there are different SIDs. Is it intended?
What scenario requires same SID on both nodes?

[Jie] The value of SIDs in the figure is just an example. As the value of adj-SID is local-significant, and represents a unidirectional link, it is possible to have the same SID value used at different directions of a link, and it also allows to use different SID value on different links or different directions of the same virtual network.

Page 10: Section 4.3: the paragraph states that each node should advertise the identifiers of the Virtual networks it participates in: 1) does each Virtual Network has its own advertisement?  i.e. if a node supports 5 Virtual Networks, the node sends out 5 independent advertisements?  2) The network controller configures the SIDs for each node. Why not let the network controller manage the advertisement?

[Jie] The advertisement of SIDs can be done with either centralized control or distributed control plane. The details are specified in separate documents in relevant WGs. Your review and comments on them are appreciated.

Best regards,
Jie

Cheers,
Linda

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 6:17 AM
To: spring@ietf.org<mailto:spring@ietf.org>
Cc: spring-chairs@ietf.org<mailto:spring-chairs@ietf.org>
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-dong-spring-sr-for-enhanced-vpn%2F&data=02%7C01%7Clinda.dunbar%40futurewei.com%7Cf03a8de844774eb62c1508d828b09948%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637304086252107481&sdata=G75TrLzE%2FhSgHuwP4cClUusCr%2BofY0C1Kq%2Fq9CBDOwE%3D&reserved=0> ending Wednesday 29th July 2020.

Please speak up if you support or oppose adopting this document into the WG. Please also provide comments/reasons for that support (or lack thereof). Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno