Re: [lmap] Need your help to understand how YANG data model is carried over wire (was Large Scale Measurement of Access network Performance <lmap.ietf.org>

Linda Dunbar <linda.dunbar@huawei.com> Mon, 09 May 2016 23:11 UTC

From: Linda Dunbar <linda.dunbar@huawei.com>
To: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
Thread-Topic: Need your help to understand how YANG data model is carried over wire (was Large Scale Measurement of Access network Performance <lmap.ietf.org>
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Date: Mon, 09 May 2016 23:11:05 +0000
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Subject: Re: [lmap] Need your help to understand how YANG data model is carried over wire (was Large Scale Measurement of Access network Performance <lmap.ietf.org>
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Juergen, 

My question was "where the actual "icmp-latency-measurement" is actually defined. Your answer is "look at the Draft-ietf-lmap-yang-04", which doesn't really help me very much. 

Draft-ietf-lmap-yang-04  has the following. Does it mean that the actual "icmp-latency-measurement" is defined by the URI? who provides the actual URI? What if the URI doesn't have any "measurement"?  

<task>
   <name>icmp-latency-measurement</name>
   <metric>
   <uri>urn:....</uri>
   </metric>
</task>



"draft-ietf-lmap-restconf-02" only has the following, as if treating "icmp-latency-measurement" as a known action (But there could be different ways to measure ICMP latency". 

<action>
  <name>icmp-latency-hourly</name>
  <task>icmp-latency-measurement</task>
  <destination>daily</destination>
</action>


Thanks, Linda

-----Original Message-----
From: Juergen Schoenwaelder [mailto:j.schoenwaelder@jacobs-university.de] 
Sent: Saturday, May 07, 2016 1:56 AM
To: Linda Dunbar
Cc: lmap@ietf.org
Subject: Re: Need your help to understand how YANG data model is carried over wire (was Large Scale Measurement of Access network Performance <lmap.ietf.org>

Linda,

please take a look at draft-ietf-lmap-yang-04.txt and draft-ietf-lmap-restconf-02.txt.

/js

On Fri, May 06, 2016 at 10:55:55PM +0000, Linda Dunbar wrote:
> Juergen,
> 
> This email post is supposed to show how a YANG data model is carried 
> over wire:  
> https://www.ietf.org/mail-archive/web/lmap/current/msg02038.html
> 
> Hope you can help me to resolve those mysteries:
> 
> 
> -         The Controller use a "POST /restconf/data/ietf-lmap:lmap/schedules HTTP/1.1" to send a "schedule". But where is the actual "icmp-latency-measurement" is actually defined? Where is "report-daily" is defined? They are all in the form of "strings". So supposedly, any string can be encoded there, then what content is carried from "Controller" to the "Measurement Agent"?
> 
> -        What purpose do the following two lines achieve?
> 
>   C: Host: example.com
> 
>   C: Content-Type: application/yang.data+json
> 
> What would happen if those two lines are not there?
> 
> 
> -        What does the following line achieve?
> 
>   C:       "timing": "hourly"
> 
> 
> Thank you very much.
> 
> Linda Dunbar

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>

[lmap] Need your help to understand how YANG data… Linda Dunbar
Re: [lmap] Need your help to understand how YANG … Juergen Schoenwaelder
Re: [lmap] Need your help to understand how YANG … Linda Dunbar
Re: [lmap] Need your help to understand how YANG … Juergen Schoenwaelder