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Questions about draft-li-6man-app-aware-ipv6-network-02

Linda Dunbar <linda.dunbar@futurewei.com> Fri, 25 September 2020 18:23 UTC

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From: Linda Dunbar <linda.dunbar@futurewei.com>
To: IPv6 List <ipv6@ietf.org>, "draft-li-6man-app-aware-ipv6-network@ietf.org" <draft-li-6man-app-aware-ipv6-network@ietf.org>
Subject: Questions about draft-li-6man-app-aware-ipv6-network-02
Thread-Topic: Questions about draft-li-6man-app-aware-ipv6-network-02
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Date: Fri, 25 Sep 2020 18:22:59 +0000
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Zhenbin, et al,

I have some questions on the draft-li-6man-app-aware-ipv6-network-02:

Page 5: App-aware Edge Device: This network device receives packets from IPv6 enabled applications and obtains the application characteristic information.

I am curious how does App-aware Edge Device derives the application characteristics information ?  Your draft mentioned VLAN tagging, How VLAN tagging can provide Application characteristics information?


Page 6: Is the Application-aware ID another extension field? Or part of existing extension header? Like a subTLV within the Hop-by-hop options Header Type?

Questions about the  Application-Aware ID structure in Figure 4:
Why not use IPv6 Header "Priority/Traffic class" field to represent the SLA Level?

Can you use IPv6 Header's "Flow Label" field to represent the App ID and Flow ID?

How can network acquire the information about "USER" information? I would think most applications encrypt their user information.


What kind of functions do you envision to be listed in the Figure 6's Function ID?


Thank you very much.

Linda Dunbar

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