Table of Contents

User Plane Function Distribution and Local Break-Out

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• MNO provides a Location Service (LS) compliant with OMA Zonal Presence API (OMA-TS-REST_NetAPI_ZonalPresence)
• MNO may expose the Location Service via the Network Exposure Function (NEF)
• A Public Cloud Edge (PCE) instance is associated with a Zone (collection of Access Points such as small cells) provided by an MNO
• A 3rd-Party Edge (3PE) instance is associated with a Zone (collection of Access Points such as small cells) provided by an MNO
• An application/workload in the PCE requires Location Information (e.g. coordinates of the Access Point) for the UE/subscriber
• An application/workload in the 3PE requires Location Information (e.g. coordinates of the Access Point) for the UE/subscriber
• PCEI Enabler facilitates Zonal Presence API Request/Response routing between PCE and the MNO LS and between the 3PE and the MNO LS

Azure IoT Edge

Assumptions:

• MNO hosts UPF/SPGW-U in their network.
• MNO provisions all UPF functions.
• MNO may request Deployment of IoT Edge on Bare Metal or NFVi via APIs (on P2)
• PCEI Enabler IoT Edge Deployer may request HW or Virtual resources (e.g. VM/Container) (on P3)
• PCEI Enabler IoT Edge Deployer may provision IoT Edge (install runtime, deploy standard modules, register with IoT Hub) via APIs/Deployer Code (on P8/P5)
• PCEI Enabler may request Interconnect for IoT Edge between MNO and Azure (L2/L3) via APIs (on P4)
• PCEI Enabler may request UPF LBO for MNO to direct customer traffic to IoT Edge (on P2/P2’)
• PCEI Enabler may facilitate deployment of custom IoT Edge modules

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PCEI Enabler IoT Edge Deployer Functions

• Deploy a base Ubuntu VM
• Download and Install Microsoft GPG public key to apt config
• Install moby engine and cli
• Install azure iot edge
• Modify iot edge config file using customer defined parameters (azure hub url, keys, scope id, etc)
• Deploy iot edge agent
• Deploy iot edge hub module
• Install certificates if edge is used as a gateway
• Restart iot edge

PCEI Enabler IoT Edge Interconnect Functions

• Request virtual connectivity to MNO
• Request virtual connectivity to Azure (e.g. ExpressRoute)

PCEI Enabler IoT Edge Software Distribution Functions

PCEI Enabler for Azure IoT Edge Implementation

Architecture and Interfaces

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PCEI Enabler Structure

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PCEI for Azure IoT Edge Call Flow (High-level)

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Openstack HEAT Example

HEAT Template and Environment Files

Template (pcei_base.yaml)

#####

heat_template_version: 2013-05-23

description: Heat template that deploys PCEI IoT Edge VM in Openstack

##############
# #
# PARAMETERS #
# #
##############

parameters:
pcei_image_name:
type: string
label: Image name or ID
description: Image to be used for compute instance
pcei_flavor_name:
type: string
label: Flavor
description: Type of instance (flavor) to be used
os_private_net_id:
type: string
label: os management network name or ID
description: Private network that connects os components and the VNF
os_private_subnet_id:
type: string
label: os management sub-network name or ID
description: Private sub-network that connects os components and the VNF
os_private_net_cidr:
type: string
label: os private network CIDR
description: The CIDR of the protected private network
pcei_private_ip_0:
type: string
label: VNF IP Address
description: IP address that is assigned to the IoT Edge
pcei_name_0:
type: string
label: VNF name
description: Name of the vPacketGenerator
key_name:
type: string
label: Key pair name
description: Public/Private key pair name
pub_key:
type: string
label: Public key
description: Public key to be installed on the compute instance

#############
# #
# RESOURCES #
# #
#############

resources:
random-str:
type: OS::Heat::RandomString
properties:
length: 4

my_keypair:
type: OS::Nova::KeyPair
properties:
name:
str_replace:
template: base_rand
params:
base: { get_param: key_name }
rand: { get_resource: random-str }
public_key: { get_param: pub_key }
save_private_key: false

# Instance behing vRouter
pcei_private_0_port:
type: OS::Neutron::Port
properties:
network: { get_param: os_private_net_id }
fixed_ips: [{"subnet": { get_param: os_private_subnet_id }, "ip_address": { get_param: pcei_private_ip_0 }}]

pcei_0:
type: OS::Nova::Server
properties:
image: { get_param: pcei_image_name }
flavor: { get_param: pcei_flavor_name }
name: { get_param: pcei_name_0 }
key_name: { get_resource: my_keypair }
networks:
# - network: { get_param: os_private_net_id }
- port: { get_resource: pcei_private_0_port }
user_data_format: RAW
user_data: |
#cloud-config
password: pcei
chpasswd: { expire: False }
ssh_pwauth: True
runcmd:
- [ sh, -xc, "sed -i 's,#UseDNS yes,UseDNS no,' /etc/ssh/sshd_config" ]
- systemctl restart sshd.service

Environment (pcei_base.env)

#########

parameters:

pcei_image_name: ubuntu1604

pcei_flavor_name: l3

os_private_net_id: provider

os_private_subnet_id: provider

os_private_net_cidr: 10.121.11.0/24

pcei_private_ip_0: 10.121.11.91

pcei_name_0: PCEI-IOT-EDGE

key_name: maskey1

pub_key: ssh-rsa AAAAB3NzaC1y

Openstack HEAT Command

openstack stack create -t pcei_base.yaml -e pcei_base.env