Network API Exposure and Context Management at the Edge · Haseeb Akhtar, Ericsson ... KPI Monitoring Analytics Policy based Recommendation KPI Calculation Predictive ... Optimization

E N T E R T H E T I T L E O F Y O U R O P E N S TA C K

P R E S E N TAT I O N

T h u r s d a y , M a y 2 4 , 2 0 1 82 : 4 0 P M t o 3 : 2 0 P M

N e t w o r k A P I E x p o s u r e a n d C o n t e x t M a n a g e m e n t a t t h e E d g e

An optimized control plane for exposing APIs at the Edge

Doug Eng, AT&THaseeb Akhtar, Ericsson

Special Acknowledgement: Dr Cagatay Buyukkoc, AT&T

OpenStack Summit in Vancouver – May 21-24, 2018

2

A G E N D A

© 2018 AT&T Intellectual Property. All Rights Reserved. AT&T, the Globe logo, Mobilizing Your World and DirecTV are registered trademarks and service marks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks are the property of their respective owners.

Security QualityContainerization

Exposure APIsContext5G Architecture

and Edge

3

E D G E A R C H I T E C T U R ESecurity QualityContainerization

Utilize the 5G advantages at the Edge


5G Application Ecosystem

UE/CPE RU DU CU-UP

Antenna sites

External Content

~ < 1ms ~ 1ms ~ 10ms ~ > 10ms ~ > 100ms

Disaggregated RAN

SMF NEF

AUSF

AMF

PCF

ONAP

Distributed Core

Central Office sites Data Center sitesCell sites

UPF

Disaggregated Core

UPF

UDM

Internet

Latency from device

Disaggregated RAN

ONAP-e

Edge Intersection

Standardize Interface

UE (R)AN UPF

AF

AMF SMF

PCF UDM

DNN6

NRFNEF

N3

N2 N4

AUSF

Nausf Namf Nsmf

NpcfNnrfNnef Nudm Naf

NSSF

Nnssf

CU-CP-L

CU-CP-H

SDRAN-CU-CP

4

5 G ‘ U S E C A S E C A T E G O R Y ’ A N D K P I S Security QualityContainerization

Many use cases


Legend:

T: Throughput

L: Latency

R: Reliability

M: Mobility

A: Availability

E: Energy Efficiency

D: User/device density

Importance of “use cases” depend on Technology, Quality, Business NFRs:• Strategy• Economics• Industry leadership • Quality of AT&T services/QOE

T

L

R

MA

E

D

Use cases benefit from multi-access Edge

MBB

mMTC (massive MTC)

Dense Information Society

Connected vehicles

VR office/factory/tactile

5

A S H A R E D I N D U S T R Y V I S I O N Security QualityContainerization

What are the key focus areas?


UE/CPE RU DU CU-UPInternet

Antenna sites

Cell sites External Content

~ < 1ms ~ 1ms ~ 10ms ~ > 10ms ~ > 100ms

Disaggregated RAN

SMF

NEFAUSF

AMF

PCF

Distributed ONAP

Distributed Core

Central Office sites Data Center sitesCell sites

UPF

CU-CP-L

CU-CP-H

UPF

UDM

1

5

3

4

1. IT environment for application – what will MNOs offer?

2. How to route traffic from device to appl.

3. What and how to expose NW APIs

4. Edge VIM suitable for small footprint

5. Infrastructure choice and ownership

1

2

3

Latency from device

5G Application Ecosystem

SDRAN-CU-CP

ONAP ONAP

6

C O N T E X T AT T H E E D G ESecurity QualityContainerization

Context is King!


Context Examples:• Monetization aspects• User related information

• Preferences, Profiles etc.

• User location and trajectory• Application and Service characteristics

• Emergency Users, Premium Service etc.

• Bandwidth and Latency requirements • Device details• Mobility pattern• Radio characteristics

• RF signal quality, neighboring cells etc.

• Congestion, load and throughput guidance

• Transport characteristics • Network and Topology

3rd party developers:

• What are the needs?• How often?• API dev?• Security?

KPI MonitoringAnalytics

Policy based Recommendation

KPI Calculation Predictive Analytics

KPI CorrelationAnalysis

KPI TestAnalytics

EdgeAnalytics

OtherMicro-services

OptimizationAnalytics (ms)

DCAE Data Collector

Local DMaap Bus

DCAE at Edge

Security, Regulatory, Entitlement and Context Hiding

Applications and Services Exposure

Service Orchestration

Infrastructure Orchestration

Telco/IT Workloads

Virtualization Layer

7

W H Y A P I S AT T H E E D G ESecurity QualityContainerization

Utilize the 5G advantages at the Edge

• 5G allows rethinking of the end-to-end architecture

• The big drivers are service agility and cost (Capex & Opex)

• Edge has the flexible architectural component

o New and innovative applications will be placed

o Leverage bandwidth and latency advantages of 5G

• What are the applications?

• What is the context?

• What exposure mechanisms can we use?


N E T W O R K D ATA E X P O S U R ESecurity QualityContainerization

Exposing network data to 3rd party applications


IP Services Network

(e.g., Operator or Internet)

Edge Cloud

NG UE

N2

N9 N6

N4

N3

Central Location

› Leverage new CP / UP split

› Enables flexible deployment options

› Edge cloud site

N4

N1

N65G CU-CP-H

Namf

Nausf NpcfNudm

Naf

Nnrf Nnssf Nnef

Nnef

AUSF NRF UDM PCF NSSF NEF

ONAP

SMF

UPF UPF

8

Nsmf

ONAPNEF

IP Services Network

Application

AMF

AF

9

I S S U E S , G A P S A N D O P P O R T U N I T Y Security QualityContainerization

There are still substantial gaps


GAPS:✓ To be able to control, configure etc. ✓ Synchronization of observability and

controllability✓ Vendor dependent/locked-in data

services✓ No real-time data available✓ No real-time control links✓ No ONAP links

Observability

• Information Service

✓Capabilities

✓Monitoring / Measurements

✓Events

✓Problems/Faults

✓Notifications

✓Diagnostics

✓Etc…

• Export service

✓Configuration

✓Logs / dumps

✓Etc…

• Configuration service✓Node / Cell / Equipment

level✓Policy ✓Information observability✓Security✓Licenses✓Etc…

• Control service✓Node level (e.g., start /

restart / stop)✓Cell level (e.g. lock/unlock)✓CU-CP-H/L control apps✓Optimization applications

• API service✓Service Provider apps✓3rd party apps

System, Network Element etc.

O-RAN (Open RAN) architecture addresses some of these, however, the data collection as

specified here need to be implemented in a scalable and cost efficient way

10

E D G E A P P L I C A T I O N S / 3 R D P A R T Y

A P P S / C O N T R O L / A P I S

Security QualityContainerization


3rd Party ONAPApps

CU-CP-L

CU-CP-H

B1

A1

Area Optimization and3rd Party Internal Apps

Disaggregated RAN

RU DU CU-UP

3rd Party External Apps

3rd PartyInternal Apps

~100 ms

~100 ms

~10-100 ms

3rd PartyExternal Apps

~10-100 ms

~100 ms

12

4

2

3

SDRAN-CU-CP

1. Non-real time (~100 ms): 3rd party internal ONAP applications

2. Near-real time (~10-100 ms): Area optimization/3rd party internal apps

3. Non-real time (~100 ms): 3rd party external applications as value added services

4. Non-real time (~100 ms): 3rd party external applications in the UEs

11

E D G E D E P L O Y M E N T A R C H I T E C T U R E Security QualityContainerization


CN agent Kubelet CN agent

OVS DPDK SRIOV Network Agents

Realtime OS Docker

Edge ContainerVM Container

Compute Nodes

CEPH Cluster

SAN

Local Drives

Storage Nodes



Realtime OS Docker


Compute Nodes

CEPH Cluster

SAN

Local Drives

Storage Nodes



Realtime OS Docker


Compute Nodes

CEPH Cluster

SAN

Local Drives

Storage Nodes

K8S API ServeK8S SchedulerL8S Controllers

Control Nodes

CNI (OVN) Controller

OpenStack (Alternative)

Logging(fluentd)

Security (Auth, Secrets, HSM)

Monitoring(Prometheus)

Service Mesh(istio)

Etcd, Kafka


Control Nodes



Logging(fluentd)



Service Mesh(istio)

Etcd, Kafka


Control Nodes



Logging(fluentd)



Service Mesh(istio)

Etcd, Kafka

ONAP

Multi-Cloud Service Zero Touch Provisioning

(Install, Update)

Airship

12

A K R A I N O E D G E S TA C KSecurity QualityContainerization


13

C O N C L U S I O N S Security QualityContainerization

NFVi integrated with 5G framework


• Use of 5G architectural framework.

• Use of common platforms:

o OpenStack, Kubernetes, ONAP, Akraino, …

• Context is King!

• Business cases are not clear….

Acknowledgements:• Dr Cagatay Buyukkoc, AT&T• Kandan Kathirvel, AT&T• Rodolfo Pacheco, AT&T• Dr Erik Westerberg, Ericsson• Glenn Seiler, Windriver

Thank You!We need to build this together.

© 2018 AT&T Intellectual Property. All Rights Reserved. AT&T, the Globe logo, Mobilizing Your World and DirecTV are registered trademarks and service marks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks are the property of their respective owners.14

Network API Exposure and Context Management at the Edge · Haseeb Akhtar, Ericsson ... KPI Monitoring Analytics Policy based Recommendation KPI Calculation Predictive ... Optimization

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