Re: [Casm] minutes of CASM meeting on March 22

"Adrian Farrel" <> Thu, 23 March 2017 17:45 UTC

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From: "Adrian Farrel" <>
To: "'Pengtao \(Tony\)'" <>
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Date: Thu, 23 Mar 2017 17:44:44 -0000
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Subject: Re: [Casm] minutes of CASM meeting on March 22
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Thanks for this write-up.
Very helpful for those of us unable to be on the call.
From: CASM [] On Behalf Of Pengtao (Tony)
Sent: 23 March 2017 02:19
Subject: [Casm] minutes of CASM meeting on March 22
Hi all,
Please find the minutes of yesterday’s WebEx meeting below.
Tao PENG (Tony), Ph.D.
Senior Researcher
Huawei Technologies Co.,Ltd
Minutes CASM 2017/3/22
Host: Marc Blanchet
Agustin Formoso
Benoit Claise
Telecom Italia: Giuseppe Fioccola
ZDNS: Declan Ma
China Telecom:  Chen Li, Chongfeng Xie
China Unicom: Ying Cheng
Huawei: (David) Weiping XU, Will Liu, (Tony)
Marc: it is not yet clear about the scope and deliverables.
Li explained the draft “casm-pool-management-arch” - address management
procedure and showed slides to explain the architecture.
Marc: Architecture in Figure 1 seems from Rakesh, which is broader. We need to
get things converged.
Benoit: what you explained seems to be a subset.
Ma: you may also consider the RPKI system (Resource Public Key Infrastructure).
After the prefixes are allocated, certificates need to be generated. This should
connect with IPAM.
Benoit: what are the building blocks that you touch in the figure (slide 2)?
Xie: the south bound of ASMS system should be defined and standardized. A portal
may be used for address configuration. A north bound interface could be defined.
Benoit: what is the flow among these entities (DHCP message/Yang?).
Xie: if we deploy centralized interface, there is only interaction between BNG
and our management server. Currently, there is no management server; the
configuration is done on BNG.
Benoit: I see disconnection between requirement and current implementation,
which is a subset. 
Xie: this architecture can cover several use cases. For example, it can be used
on DHCP configuration, IPTV.
Benoit: do these people want to work on the full scope, or the scope is to only
have BNG interaction?
Xie: address allocation in the cloud may be considered in the architecture. It
is very important; some automatic mechanisms can be used.
Giuseppe: dynamic service creation could be an important use case. The
application is crucial.
Liu: I was looking at the draft from Rakesh. Chen Li addressed most of the
scenarios in Rakesh’s draft.
Benoit: how the use cases are covered by your draft? What is the current
interaction flow from operator to network elements (BNG/DHCP…)? Do we have
meeting agenda?
1, identify the details on south/north bound interfaces
2, show how the use cases are covered
3, consider the interaction flow of Address Space Management & Control
4, chairs decide the topics during BoF
5, start a thread to find a timeslot for a meeting on Sunday for better