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Re: [Teas-ns-dt] issue discussion: NF resource

John E Drake <jdrake@juniper.net> Thu, 28 May 2020 20:43 UTC

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From: John E Drake <jdrake@juniper.net>
To: Kiran Makhijani <kiranm@futurewei.com>, "teas-ns-dt@ietf.org" <teas-ns-dt@ietf.org>
Thread-Topic: issue discussion: NF resource
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Date: Thu, 28 May 2020 20:43:44 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/teas-ns-dt/XaGpYqk22OkRJep-tTLDS6-lZcw>
Subject: Re: [Teas-ns-dt] issue discussion: NF resource
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Hi,

The below description is a consistent with the definition of a transport slice endpoint as being on the customer equipment, in which case these network functions are within the provider network and are not transport slice endpoints.  These network functions as well as more complicated functions such as service function chains would be specified via the northbound interface - it would be useful to mention this in our drafts.

This then suggests that section 4.2, which defines a transport slice endpoint as being on the provider equipment, needs to be updated.

Yours Irrespectively,

John



Juniper Business Use Only
From: Teas-ns-dt <teas-ns-dt-bounces@ietf.org> On Behalf Of Kiran Makhijani
Sent: Thursday, May 28, 2020 3:07 PM
To: teas-ns-dt@ietf.org
Subject: [Teas-ns-dt] issue discussion: NF resource

[External Email. Be cautious of content]

Hi All,
To kick off discussion on this topic.

During earlier discussions several of us asked for network functions should be part of the slices. For me the value of doing this is to be able to express different nuances of a service through single set of objectives. Then in NBI and implementation there is one controller to monitor the performance.

At the entry and exit of transport slices, these NF can be supplied to enforce access control, policies, etc. on transport slice traffic. It is also safe to assume that they will be virtual.

The objective is to apply those function on  traffic flows.
2 examples are  (1) use of firewall at entry point with the rules described by the user of transport slice. (2) Caching or DPI function on exit endpoints.


Regards
Kiran

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