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October 2014
Anthony Magee – Business Development Director
Impact of NFV and SDN on Connectivity Networks
© 2014 ADVA Optical Networking. All rights reserved. Confidential.22
• Present network architecture and technology layering
• Introduction to NFV
• Impact of NFV and SDN• Connectivity Provisioning• What Functions to Virtualize
• Network Demarcation in NFV and SDN Networking
• Collaboration activities
Agenda
© 2014 ADVA Optical Networking. All rights reserved. Confidential.33
Access/
Aggregation
Metro Transport
Typical Legacy Network Scenario
Base Station
Enterprise
Residential
DSLAM
BRAS
LER
OTN
RNC, MSC
WDM or PON
Carrier Ethernet
Core Transport
Point of Presence(PoP)
DWDM
OTN
Technology trend: MPLS to the edge, increasing Bandwidth Requirements
Technology trend: switched OTN layer, high scalability, CP interworking
xDSL
MPLS
© 2014 ADVA Optical Networking. All rights reserved. Confidential.44
• Present network architecture and technology layering
• Introduction to NFV
• Impact of NFV and SDN• Connectivity Provisioning• What Functions to Virtualize
• Network Demarcation in NFV and SDN Networking
• Collaboration activities
Agenda
© 2014 ADVA Optical Networking. All rights reserved. Confidential.55
Virtualization Is Not A New Concept
Switch BoardDedicated hardware for single application
Soft SwitchApplication running on shared servers
Virtualization impacts architecture and technology of operator networks
© 2014 ADVA Optical Networking. All rights reserved. Confidential.66
Traditional Network Appliances Virtualized Network Functions
What is Network Functions Virtualisation?
Common hardware, software-based provisioning, accelerate innovation
BRAS
FirewallDPI
CDN
Tester/QoE
Monitor
WAN
Acceleration
Message
Router
RAN Controller
Carrier
Grade NAT
Session Border
Controller
PE RouterSGSN/GGSN
Standard, High-Volume
Servers
Standard, High-Volume
Storage
Standard, High-Volume
Switches
htt
p:/
/ww
w.e
tsi.org
/technolo
gie
s-c
luste
rs/t
echnolo
gie
s/n
fv
© 2014 ADVA Optical Networking. All rights reserved. Confidential.77
• Virtual Customer Premises Equipment (vCPE)• Virtual Customer Premises Equipment (vCPE)
• Virtual Home Gateway (vHG)• Virtual Home Gateway (vHG)
• Virtual EPC (vEPC), Centralized RAN (C-RAN)• Virtual EPC (vEPC), Centralized RAN (C-RAN)
Initial NFV Implementations
Targeting mobile, residential and business applications
Residential Services
Business Services
Mobile Networks
© 2014 ADVA Optical Networking. All rights reserved. Confidential.88
• Present network architecture and technology layering
• Introduction to NFV
• Impact of NFV and SDN• Connectivity Provisioning• What Functions to Virtualize
• Network Demarcation in NFV and SDN Networking
• Collaboration activities
Agenda
© 2014 ADVA Optical Networking. All rights reserved. Confidential.99
1. Start: Firewall runs as virtualized network function (VNF) in DC 1;
Impact of NFV on Network Control and Connectivity Network
Enterprise
Transport Network
Network Resource Controller
Resource Orchestration
Computing Resource Controller
COTS Server
virtualizedfirewall
Data Center 1
© 2014 ADVA Optical Networking. All rights reserved. Confidential.1010
1. Start: Firewall runs as virtualized network function (VNF) in DC 1; as Enterprises scale, and new VNFs are deployed DC1 resource alarms start ringing !!!
Impact of NFV on Network Control and Connectivity Network
Enterprise
Transport Network
Network Resource Controller
Resource Orchestration
Computing Resource Controller
COTS Server
virtualizedfirewall
Data Center 1
© 2014 ADVA Optical Networking. All rights reserved. Confidential.1111
1. Start: Firewall runs as virtualized network function (VNF) in DC 1; as Enterprises scale, and new VNFs are deployed DC1 resource alarms start ringing !!!
2. Orchestrator decides to move some VNFs to DC 2
a) Computing Resource Controller moves some VNFs from DC 1 to DC 2
b) Network Resource Controller allocates capacity for moving data between DC1 and DC2
c) Network Resource Controller sets-up new flows from enterprise to DC2
Impact of NFV on Network Control and Connectivity Network
Enterprise
Transport Network
Network Resource Controller
Resource Orchestration
COTS Server
virtualizedfirewall
Data Center 2
Computing Resource Controller
COTS Server
virtualizedfirewall
Data Center 1
2.a
2.c
2.b
© 2014 ADVA Optical Networking. All rights reserved. Confidential.1212
Impact of NFV on Network Control and Connectivity Network
Enterprise
Transport Network
Network Resource Controller
Resource Orchestration
COTS Server
virtualizedfirewall
Data Center 2
Computing Resource Controller
COTS Server
virtualizedfirewall
Data Center 1
• Software Defined Networking: network, computing and storage resources can be allocated by software
• Virtualization: hypervisor shares resources among multiple users/ applications
• Orchestration: coordinated allocation of network resources and computing/ storage resources
• Transport SDN: flow-based PtPconnectivity network, centrally “programmed” (= real-time, software provisioning)
© 2014 ADVA Optical Networking. All rights reserved. Confidential.1313
NFV/SDN Impact on Control of Connectivity Network
Transport Network
Network Resource Controller aka Network Hypervisor
DC 2
DC 1
Distributed routing- and signaling e.g. IP/MPLS
Packed flows programmedthrough open interfaces
and open software controllers
CPE
© 2014 ADVA Optical Networking. All rights reserved. Confidential.1414
• Present network architecture and technology layering
• Introduction to NFV
• Impact of NFV and SDN• Connectivity Provisioning• What Functions to Virtualize
• Network Demarcation in NFV and SDN Networking
• Collaboration activities
Agenda
© 2014 ADVA Optical Networking. All rights reserved. Confidential.1515
To Virtualize or Not to Virtualize
Not all network functions are perfect candidates for virtualization
• Limited life-time of function or service
• Flexible adaptation of parameters and algorithms
• Moderate processing and storage load
• Limited life-time of function or service
• Flexible adaptation of parameters and algorithms
• Moderate processing and storage load
Where Virtualization Works
• Limited gains from resource sharing
• Performance and delay-critical functions
• Static functions, deployed in high volume
• Synchronization
• Limited gains from resource sharing
• Performance and delay-critical functions
• Static functions, deployed in high volume
• Synchronization
Dedicated Hardware Preferred
© 2014 ADVA Optical Networking. All rights reserved. Confidential.1616
• Connectivity network becomes “programmable”: connectivity is established by central control through open interfaces with pre-defined service parameters
• Some functions will require hardware support e.g. network synchronization, encryption at lower network layers
• Each network element in a connectivity network will also provide processing and storage capacity
Intermediate Summary
Data Centre becomes Network / Network becomes Data Centre
© 2014 ADVA Optical Networking. All rights reserved. Confidential.1717
Evolution of Network Demarcation towards NFV/SDN-Centric Networking
Ethernet OAMEthernet OAM
Auto. ActivationAuto. Activation
Ethernet OAMEthernet OAM
Auto. ActivationAuto. Activation
L3/4 OAML3/4 OAM
ProgrammabilityProgrammability
SecuritySecurity
Ethernet OAMEthernet OAM
Auto. ActivationAuto. Activation
L3/4 OAML3/4 OAM
ProgrammabilityProgrammability
SecuritySecurity
StorageStorage
VF ServerVF Server
functionality
network evolution
proNID
proNID (VM)
NID
© 2014 ADVA Optical Networking. All rights reserved. Confidential.1818
• Present network architecture and technology layering
• Introduction to NFV
• Impact of NFV and SDN• Connectivity Provisioning• What Functions to Virtualize
• Network Demarcation in NFV and SDN Networking
• Collaboration activities
Agenda
© 2014 ADVA Optical Networking. All rights reserved. Confidential.1919
SDN
FMCNG-POP
EU Project - Fixed Mobile Convergence
19
FMC ToolboxFMC Architectural Blueprint
NFV
Grant Agreement N°: 317762
© 2014 ADVA Optical Networking. All rights reserved. Confidential.2020
NFV and Structural vs Functional Convergence
20
• Structural convergence is defined as sharing/mutualization of network equipment and infrastructure resources for several network types. The moving of existing functions of different network types to a unified network entity for a better distribution of functions belongs to structural convergence.
• Functional convergence means the implementation of a generic function to realize similar goals in different network types (fixed, mobile, Wi-Fi). This includes the moving of functions in order to merge specific fixed, mobile and Wi-Fi functions into some generic functions.
Mobile
- Network Functions
FixedStructural converged Network
Mobile
FixedFunctional converged Network
© 2014 ADVA Optical Networking. All rights reserved. Confidential.2121
COMBO UAG Deployment Models
BBU hotel
eNB
Wi-Fi AP
Mobile:
Backhaul & Fronthaul
Access / Aggregation
Network
eNB
CPRI Test
Fixed Line:
Residential/Business & Wi-Fi/Small Cells
Content
Cache
Mobile
EPCuAAA PMM
IntfcSelect
UAG
eNB
Fixed Line
NID/RGW
Advanced Interface
Selection and 3D Handover
Simultaneous Transport of Fixed Line and Mobile over Converged
Access/Aggregation Network
© 2014 ADVA Optical Networking. All rights reserved. Confidential.2222
Service Provider SDN Connectivity Demo
• Common optical connectivity network• Self-provisioning / virtualized optical and
Ethernet network resources• Multiple concurrent clients such as DCs,
customers, customer applications• Network programmability by OpenFlow• Open software DayLight controller
programs the network
DC Site 1DC Site 1
MAN / WANConnectivity
DC Site NDC Site N
Customer Site 1Customer Site 1 Customer Site 2Customer Site 2
Customer NMS / BSSCustomer NMS / BSS
Customer Domain
Operator Domain
OF Progr.Interface
Optical NetworkHypervisor
© 2014 ADVA Optical Networking. All rights reserved. Confidential.2323
• Programmability is paradigm of SDN/NFV-centric networking
• Open interfaces and open software controllers for painless network integration
• Not all network functions can be virtualized
• Demarcation devices will become programmable and provide processing/storage resources
• New business models are enabled by adoption of NFV & SDN
Key Takeaways
Thank You
IMPORTANT NOTICE
The content of this presentation is strictly confidential. ADVA Optical Networking is the exclusive owner or licensee of the content, material, and information in this presentation. Any reproduction, publication or reprint, in whole or in part, is strictly prohibited.
The information in this presentation may not be accurate, complete or up to date, and is provided without warranties or representations of any kind, either express or implied. ADVA Optical Networking shall not be responsible for and disclaims any liability for any loss or damages, including without limitation, direct, indirect, incidental, consequential and special damages, alleged to have been caused by or in connection with using and/or relying on the information contained in this presentation.
Copyright © for the entire content of this presentation: ADVA Optical Networking.
Grant Agreement N°: 317762
Acknowledgements: