Re: [netconf] some comments on netconf-adaptive-subscription

Qin Wu <bill.wu@huawei.com> Fri, 25 June 2021 17:05 UTC

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From: Qin Wu <bill.wu@huawei.com>
To: Michael Richardson <mcr+ietf@sandelman.ca>, "netconf@ietf.org" <netconf@ietf.org>, "core@ietf.org" <core@ietf.org>
Thread-Topic: some comments on netconf-adaptive-subscription
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Date: Fri, 25 Jun 2021 17:04:59 +0000
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Subject: Re: [netconf] some comments on netconf-adaptive-subscription
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-----邮件原件-----
发件人: Michael Richardson [mailto:mcr+ietf@sandelman.ca] 
发送时间: 2021年6月26日 0:51
收件人: Qin Wu <bill.wu@huawei.com>om>; netconf@ietf.org; core@ietf.org
主题: Re: some comments on netconf-adaptive-subscription


Michael Richardson <mcr+ietf@sandelman.ca> wrote:
    >> [Qin]: I am also hoping RESTCONF and CORECONF can work together, but
    >> they seems to look into different use cases (constrained device
    >> management vs unconstrained device management) .  I am not sure we
    >> should generalized RESTCONF and CORECONF into a single protocol.

    > That's not what I'm suggesting.  I'm asking, if bandwidth is an issue,
    > why not use a smaller encoding.  And, why not integrate with CoAP
    > Observe?

draft-birkholz-yang-core-telemetry-01 [now expired] for instance tries to do a lot of the matching.  I think that the adaptive rate subscription that you've created would work very well within that model.
[Qin]: Well, I will investigate this and see what is missing there.
I guess yang-core-telemetry-01 needs to update itself as ietf-netconf-subscribed-notifications is published as RFC 8639 right.
[Qin]: Agree. 
I still don't know how XPath would work with COMI, but really I'm just sitting around the edges of the YANG over the wire space.
[Qin]: Good question, note that XPATH used for NETCONF follows XPath 1.0 [W3C.REC-xpath-19991116] and XPath 2.0
See RFC6241 section 8.9 and RFC7950 section 6.4.
--
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 IøT consulting )
           Sandelman Software Works Inc, Ottawa and Worldwide