Re: [netmod] Smart filters for YANG-Push

Tue, 03 Jul 2018 08:55:28 -0700

Hello,

You should make the new filter types separate chapters, to make them more visible.

threshold crossing alert:

  • I would rather say you have a single filter with a raise and clear condition. You never really want a threshold filter without a paired clear filter
  • this should be connected to an alarm based on draft-ietf-ccamp-alarm-module. You should have the possibility of raising an alarm when the threshold is passed.
  • the term counter filter is confusing as it invokes the idea of a gauge (a filter based on counting something) instead of a reverse filter
  • mention that smart filters will obviously place a load on the server. Can they be rejected/suspended/resumed like a subscription.

regards Balazs


On 7/3/2018 1:37 AM, Alexander Clemm wrote:

Hello Netmod Working Group,

 

we have just submitted a new draft on Smart Filters for Push Updates: https://tools.ietf.org/html/draft-clemm-netmod-push-smart-filters-00 

 

This draft supersedes  draft-clemm-netconf-push-smart-filters-ps that recently expired.  The draft involves the definition of  a YANG data model that allows to define more advanced filters than the ones defined with YANG-Push, specifically filters that can take into account values of data nodes as well as state.  This allows to define filters for thresholds, recent high-water marks, and more.  It is also a building block for network automation, providing the event portion for many types of Event-Condition-Action-based control loops.  The draft at this point contains little more than the motivation and problem statement; the actual YANG data model is still to be defined; however, we felt it would be good to have a placeholder posted so we can have discussions in Montreal. 

 

--- Alex (on behalf of coauthors: Eric, Xiufeng, Igor, Tianran, Walker, Henk)

 



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-- 
Balazs Lengyel                       Ericsson Hungary Ltd.
Senior Specialist
Mobile: +36-70-330-7909              email: [email protected] 




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