vAN technology

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For International Market
FM Product MKT & Solution Team
June. 2018
Virtual Access Network(vAN): Technology Introduction

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Requirements
Analysis
Solutions

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Scenarios1:Emerging Services from Different ISPs Require Customized
Service Provisioning
Big Video
High bandwidth & low
latency
Residential
Reasonable bandwidth &
customized service
Enterprise
High security &
symmetric bandwidth
Service
Network/ISP 1
…
Service
Network/ISP 2
Service
Network/ISP n
Big Video
Enterprise
Residential
Backhaul
Wholesale
…
Physical Network
Function (PNF) OLT
Backhaul
Low latency & high
bandwidth and reliability
Wholesale
High security& Flexible and
Independent operation
• Flexible to provide customized configuration for different services.
• Easy to provide multiple ISPs service at the same OLT with private resources allocation.
• Provide service isolation and high reliability functions.
Requirements

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Scenarios2: OpenAccess
• OLT need to be supported network slicing based on ONU.
• Each vOLT with separate uplink and vSwitch and share the same PON port with other vOLTs.
• ONUs from different vNOs under the same PON port can access the different OLT.
Requirements

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Scenarios3: Park POL Network Slicing
• The isolation of internal and external networks separates the service and ensures network performance.
• Easy IP/VLAN planning and OAM.
• Easy network upgrade.
Requirements
Park CO and data center Cloud data center

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Requirements
Analysis
Solutions

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OLT Supports Resource Slicing and Enables Diverse Services
From Multiple Carriers
• Through network function virtualization, the OLT virtualized into a number of slices with separate uplinks and
vSwitchs. And all the slices share the PON port.
• Each network slice has an independent forwarding plane, management layer and control layer.
• Each service has private configuration by isolated slices.
• Each ISP has its own OLT and ODN network in current network.
• Different ONUs can access different ISPs through the same OLT and ODN network.
Network
Slicing
Current Network
ISP1 network
ISP2 network
OLT1
OLT2
ISP1 Services 1
network
ISP1 Services 2
network
Backhaul
Big Video
Enterprise
PSTN/TDM
IP/MPLS
BSC/RNC/
xGW
Bs/eNode/small cell
CR
CDN
SR
ONU
Internet
Enterprise
DC
IP/MPLS
ONU
STB
ONU BRAS
Internet
OLT Slicing 1
OLT Slicing 2
OLT Slicing 3
OLT Slicing n
…
TITAN OLT

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Four-level Resource Slicing for Flexible Service Provisioning
Multi-level
service slicing
Suiting diverse
lease scenarios
•Four-level slicing based on UNI, ONU,
PON port and PON card.
• OLT supports maximum 8 network slices.
• Provides flexible access of L2/L3 services.
• Access to different services and different
providers.
• MDU is shared by multiple enterprises/homes.
• One subscriber accesses multiple ISPs and ICPs.
• Shared mobile, data and voice access.

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PON Card/Port Slicing Meet the Requirements of Different
Fields/Parts Isolation
• High security, isolated resources and services configuration,
isolation of internal and external of the area.
• Assured bandwidth.
• Simplified engineering and ONU installation and
maintenance.
OLT
Network Slicing1
Enterprise/Factory
Network Slicing4
Network Slicing2
Network Slicing3
Talent Apartment
Hotel
Office
VPN
OSPF/NAT
• OLT is installed in the C.O, each part has separate ODN to
connect to OLT
• Each certain part has different networking slicing, and is
assigned by physical PON card/PON port , uplink card/port.
• Each part has its own ONU certification, PON management
configuration, L2/L3 resources, and access authorization.
• The area operator builds the whole FTTx network of the
area, easy for unified management and OAM.
• Different fields/parts are isolated by physical ways with
high security.
• ODN is shared by all the parts of the area to save TCO.
Typical
Scenarios
Benefits
PON Card based Slicing
PON Port based Slicing
PON Port based Slicing
Resource allocation, management, O&M
Area operator
 One area is separated into several fields/parts, different parts of
ODN are lent by different fields/parts, ONU is installed by the
area operator, each field/part has the ability for operation.
 An operator has its own OSP(Out side Plant) different
departments, each department is assigned with a network
slice.
Solution

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ONU Slicing Meets the Requirements of Multiple Services Providing
Scenarios
1
1
2
2
n
n
…
…
2
ONU
ONU
ONU
Service
Network/ISP 1
The InP (Incumbent provider) has its own OSP team, and several VNOs
(Virtual Network Operators) complete their own ONU installation.
Network Slicing 2
Network Slicing 1
Network Slicing n
OLT
…
• A subscriber needs several services from
different ISP/ICPs
• End user has the ability to select different
ISP/ICP or VNO
• VLAN is not enough for new service access
Typical
Scenarios
Solution
Benefits
• OLT is assigned slicing according to different
ONUs to support different services(Home BB,
Enterprise, MBH, etc.)
• ONUs from different Port card/port use the
same slicing for certain service access.
• Different control, management, and
forwarding planes for each service.
• Independent planning of PON layer, VLAN,
MAC /IP address, resources can be reused
• ODN is shared for all subscribers.
Service
Network/ISP 2
Service
Network/ISP n

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UNI-based Slicing Enables the Access of Diverse Services From
Multiple Operators/ONOs
UNI 1
UNI 2
UNI n
UNI 2
UNI 1
ONU UNI Slicing
…
…
…
UNI n
VNO1 network
VNO1 EMS
InP has its own OSP team, and completes the ONU
installation for Virtual Network Operators(VNOs).
…
Network Slicing
2
Network Slicing
1
Network Slicing
n
OLT
vONU
CPE
CPE
FTTH/O/dp
FTTB/C/dp/M
ONU
…
OLT Slicing n
OLT Slicing 1
• One InP and several VNOs, InP is responsible for
the ONU
• VNO has no OSP team, and wants to save cost.
• Disperse subscriber coverage, low penetration rate
• VNO’s self-operation service is needed to keep
Typical
Scenarios
Solution
Benefits
ONU
ONU
ONU
• Each MDU UNI port for one use
• FTTB/C/dp is looked as the FTTH for
management, OAM and service provisioning
• VNO rents the network resource from InP for
its self-operation service providing
• Unified network construction(including
ODN), management, and OAM, help
save TCO
• Low cost for VNO operation
VNOn network
VNO2 EMS
Interface
Interface
Interface
vONU
vONU

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Separate Network Slicing Based on SDN Controller and Agent, OLT
Deploys Flexibly and On-demand
Service
network 1
Service
network n
VXLAN
NetConf/YANG
EDC
OLT
SDN Agent
Forwarding
Resource
Slicing1
SDN Agent
Slicing n
VXLAN
NetConf/YANG
SDN Controller MANO
Spine
vBNG vCPE
Resource
Forwarding
ONU/ CPE
ONU/CPE
• The control plane moves the SDN controller in EDC.
The SDN controller implements unified
management and control.
• OLT supports SDN Agent, and connects to the SDN
controller via NetConf/YANG protocols.
• Refined resource slicing, independent slicing resource.
• Separated controller and forwarding plane ,OLT
deploys flexible and on-demand. as the near or
remote node of EDC.

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vAN implemented in physical OLT
Logic Resource
Control &
Management
Function
Data
Store
Logic Resource
#1
Logic OLT1
Logic Resource
Control &
Management
Function
Data
Store
Logic Resource #2
Logic OLT2
VNO1
Network
Manag
er
VNO2
Network
Manag
er
CMS
…
…
PSU
Physical
Resource
…
…
…
Alarms
Physical Resource
Management &
Control
Function Data
Store
Manage OLT0
OLT
L1 Socket
L2 - L3 Socket
Datagram Exchange
• Adding logical OLT in
physical OLT to separate
physical resources.
• Each logical OLT has
mutually exclusive
logical resources,
independent
management, control
functions, and
independent data
storage space.
• Minor changes to the
network architecture,
and there is no need to
introduce additional
NFVI infrastructure.

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vAN implemented in Cloud CO
• Need to introduce
additional NFVI
infrastructure
• Multiple physical
OLTs can be
connected together
to realize virtual
abstraction of vAN
virtual resources
……
vAN#1
Virtual Resource
Control &
Management
Function
Data
Store
VNO1
Network
Manager
…
…
PSU
…
…
Alarms
pAN#1
…
…
PSU
…
…
Alarms
pAN#2
Physical Resource
Management &
Control
Function Data
Store
MANO
(CMS)
VNFM
VIM
……
vAN#2
Virtual Resource
Control & Management
Function
Data
Store
VNO2
Network
Manager
Control Side VNF
(L2-L3 and other
network functions)
UME
(x86)
L1 Socket
L2 - L3 Socket
Datagram Exchange
MIB/YANG 1:1 Modeling

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