Hi Sarat, All,
Following up on our meeting today, was thinking a bit deeper on distributed
placement of analytics engines which could be ONAP components such as DCAE and
external components such as vendor-specific EMS or analytics engines. The
placement domain can encompass operator private cloud with VIMs from different
vendors (OpenStack, Wind river, VMware Integrated OpenStack etc.) or public
cloud (Microsoft Azure etc.).
Declarative placement policy examples
* Minimize latency for closed loop fault detection/remedy for VOLTE user
plane traffic
* Desire to place real-time analytics engines near the user plane VNF
* Desire to choose the real-time analytics engine with minimal response
latency
* Minimize cost for historical analytics
* Desire to place historical analytics engines in public cloud
Exemplary constraints of interest
* Network interconnect bandwidth, Xth percentile latency (X could be 99.9)
* Closed loop response time
* Cloud compute, network, storage pricing
* Yth percentile latency of individual components (real-time analytics
engine etc.) used for closed loop automation (Y could be 99)
* This would include details about vendor-specific components such as EMS
* Application metric - end-to-end Zth percentile latency (Z could be 99)
This would be of immediate value for R1/R2 use cases such as
* VOLTE use case focused on 3GPP CUPS --
https://wiki.onap.org/pages/viewpage.action?pageId=6593603
* 5G RAN --
https://wiki.onap.org/display/DW/Use+case%3A+5G-+RAN+deployment%2C+E2E+Slicing%2C+SON
Comments and thoughts welcome.
Thanks,
Ramki
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