My keynote session about SDN Network Virtualzation & NFV for the MPLS and Ethernet 2013 World Congress in Paris - March 2013.

1. Network
Virtualization
Hector Avalos
Dir. Business Strategy & Programs
Hector.Avalos@Ericsson.Com
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 1

2. › Software Defined Networking
› Network Openness
› Network Programmability
› Enable innovation & fast introduction of new network functionality
› Application-aware Networking
› Enable synergies between Applications and the Network through APIs
› Service Provision Agility thru Automation
› Orchestration of applications, services & network provisioning
› Network Functions Virtualization (NFV)
› SW-based service delivery using commercial off-the-shelf HW
› Use distributed processing & storage
› Enable service elasticity: on-demand and pay per use services
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 2

3. › SDN is an emerging
architectural concept that
encompasses:
› Network programmability,
› Unleashed service innovation,
› Service-driven networks
› There is no common agreement
yet among industry players
about what SDN is
› Two major perspectives:
› ONF
› IETF
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 3

4. › Network Virtualization is a key benefit of SDN
– Enabled by decoupling the control and forwarding plane
› Network Virtualization was generally referred as
Virtual Private Networks
› Is there any difference between VPNs & SDN Network
Virtualization?
– If so, are they complementary?
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 4

5. VPN A VPN B
Site 1 Site 2
Shared
VPN B VPN A
Site 1 infrastructure Site 2
VPN C VPN C
Site 1 Site 2
› VPNs
– A virtual private network is a closed user group constructed over a
shared infrastructure
– Virtual: not a separate physical network
– Private: independent addressing and forwarding tables
› Allows addressing overlapping
› Ensure secure isolation between different VPNs
- Network: could be either L2, L3 or both
– Policies are key—global connectivity is not the goal
› Network connectivity could be P2P, P2MP and MP2MP
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 5

6. without
› Hypervisor virtualizes the server,
decoupling VMs from the server
VM 1 VM 2 VM 3 HW and allowing
– Optimization of server resources
– Operational simplicity
– Operational speed
Hypervisor
Server HW › Limitations
– Single tenant support
ToR DC Switch – Constrained VM placement
– Restricted VM mobility
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 6

7. with
VM 1 VM 1 VM 1 VM 2 VM 2
› Network Virtualization through a
virtual switch
– Decouples network services from HW
Virtual Switch
› Overlay network represented as a
Hypervisor distributed switch fabric
– Allows multi-tenancy
Server HW
› Maximizes server efficiency
- Increases VM density
ToR DC Switch – Enables VM placement and
mobility anywhere
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 7

8. VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM
1 1 1 2 1 1 2 1 1 2 1 1 2
VM VM VM VM 2 VM VM VM 1
VM VM 2 VM VM VM 1
VM VM 2 VM VM VM 1
VM VM 2 VM
1 1 2 1 1 2 1 1 2 1 1 2
VM VM 1 VM VM 2 VM VM VM 1 VM VM 2 VM VM VM 1 VM VM 2 VM VM VM 1 VM VM 2 VM
1 1 1 2 2 1 1 1 2 2 1 1 1 2 2 1 1 1 2 2
vSwitch vSwitch vSwitch vSwitch
vSwitch vSwitch vSwitch vSwitch
Hypervisor Switch
Virtual Hypervisor Switch
Virtual Hypervisor Switch
Virtual Hypervisor Switch
Virtual
Hypervisor Hypervisor Hypervisor Hypervisor
Server HW
Hypervisor Server HW
Hypervisor Server HW
Hypervisor Server HW
Hypervisor
Server HW Server HW Server HW Server HW
Server HW Server HW Server HW Server HW
ToR DC Switch ToR DC Switch ToR DC Switch ToR DC Switch
Network
Controller
› Network Virtualization decouples network services from HW
– Overlay network with control plane, data plane and management plane decoupled
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 8

9. Customer A Customer B Customer C
VM VM VM VM VM VM
Orchestration Network VM VM VM VM VM VM VM VM VM
Controller Controller
ToR DC Switch ToR DC Switch ToR DC Switch ToR DC Switch
› Network Virtualization decouples network services from HW
– Overlay network with control plane, data plane and management plane decoupled
– “Slices” the network in virtual distributed ‘fabrics’
– Enables delegation of administration of virtual network services
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 9

10. Customer A Customer B Customer C
VM VM VM VM VM VM
Orchestration Network VM VM VM VM VM VM VM VM VM
Controller Controller
Virtual Virtual Virtual
Fabric Fabric Fabric
Slice Slice Slice
ToR DC Switch ToR DC Switch ToR DC Switch ToR DC Switch
› Network Virtualization decouples network services from HW
– Overlay network with control plane, data plane and management plane decoupled
– “Slices” the network
– Enables delegation of administration of virtual network services
– Enables automated network services provisioning using the same model as Cloud
Service provisioning
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 10

11. › SDN/DC Network Virtualization and MPLS VPNs
– Provide private networking over a shared infrastructure
› Independent addressing and forwarding tables
› Allows addressing overlapping
› Ensure integrity, security and privacy for each Closed User Group (VPN)
– Implement destination MAC/IP address forwarding paradigm
› Allows Policy Based Forwarding
› SDN/DC Network Virtualization
– “Slices” the network
– Enables delegation of administration of virtual network services
– Enables automated network services provisioning using the Cloud Service
provisioning model
– Fast provisioning of new services
– Data plane path could be globally “defined” for Network Functions (i.e VMs)
processing through SDN Network Programmability
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 11

12. Classical Network Appliance Approach
Message CDN Session Border
Router Controller
Orchestrated,
automatic &
remote install.
DPI Firewall Carrier
Grade NAT
Standard High Volume Servers
SGSN/GGSN PE Router BRAS Standard High Volume Storage
WAN Tester/QoE Standard High Volume
Radio Network
Acceleration monitor Ethernet Switches
Controller
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 12

13. VM
2
Orchestration Network VM VM
Controller Controller
1 3
› Network Functions / In-Line Services Chaining is achieved through
data path programmability
› The global forwarding data path for specific flows can be centrally provisioned
› Network-wide policy based forwarding
› Flows can be steered to a specific set of VMs (‘Network Functions’) for
processing within a predefined order
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 13

14. NF2
Orchestration DC Network
NF1 NF3 Controller Controller
Cluster Cluster
Data Center
Internet
MSER
Aggregation IP Edge
› SDN data path programmability allows in-line chaining of distributed
Network Functions
› Enables service elasticity, agile provisioning and pay per use
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 14

15. VM VM VM VM VM
VM VM
VM
VM VM VM VM VM VM VM VM
VM VM VM
VM
VM VM
VM VM
VM VM VM
VM VM VM
Service Provider Data Center A Service Provider Data Center B
› Service Providers can leverage their MPLS VPN infrastructure to
extend services across the WAN
– Thru CPE or vCPE (Software-based CPE as VM)
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 15

16. Orchestration DC Network MPLS VPN
Controller Controller Controller
VM VM Cluster Cluster Cluster VM VM VM
VM VM
VM
VM VM VM VM VM VM VM VM
VM VM VM
VM
VM VM
VM VM
VM VM VM
VM VM VM
Service Provider Data Center A Service Provider Data Center B
› Service Providers can leverage their MPLS VPN infrastructure to
extend Cloud services across the WAN
– Thru DC GW PE implementing ‘SDN/DC Overlay Networking’ functionality
› Customers can automate WAN network services provisioning using the Cloud Service
provisioning model
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 16

17. Orchestration DC Network MPLS VPN
Controller Controller Controller
VM VM Cluster Cluster Cluster VM VM VM
VM VM
VM
VM VM VM VM VM VM VM VM
VM VM VM
VM
VM VM
VM VM
VM VM VM
VM VM VM
Service Provider Data Center A Service Provider Data Center B
› The MPLS WAN could also be ‘sliced’ using SDN architectural principles
– Decouple control plane, data plane and management plane
– In addition to this, the services plane (Network Functions) could also be decoupled
› Customers can automate network and network function services provisioning using
the Cloud Service provisioning model
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 17

18. › Network virtualization is transforming Data Centers
– Enabling ‘Network as a Service’
– Programmatic control of compute, storage and network resources
– Maximizes resource usage efficiency
– Changes the operational model
› SDN allows to achieve these outcomes
› Synergies between DC Network Virtualization and Service
Providers MPLS networks
– Increases flexibility and service velocity
› Requires open/standard northbound, southbound and
east/west interfaces
© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 18

19. © Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 19