SDN & NfV – where are we and
where are we heading?
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© 2013, CYAN, INC.
Agenda
 Router Offload
 WAN & Cloud– integration and orchestration
 NfV
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Cyan Confidential
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© 2006-2012 CYAN, INC.
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Rel. 3.2, Rev. 1 – 701-0003-01-03-02
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Router Offload
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L3 Router Offload Service
Orchestration Use Case
 Internet edge Offload

Extending the life of edge interfaces by keeping intra-metro
traffic in the metro
 Data Centre Gateway optimization


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Selective routing of inter-DC traffic before traffic hits the DC
gateway.
Provide fine-grained control of traffic flows to support low
latency/cost DC interconnect
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Layer 3 Offload Use-Case
Route Reflector
L2 Aggregation L2 Aggregation
L3 Offload #1
PE #1
CPE #1
IP/MPLS
Core
CPE #2
j
j
CPE #3
L3 Offload #2
CPE #4
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PE #2
Static routing/eBGP
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L3 Router Offload
Orchestration Requirements
 OpenFlow used for south-bound control to keep the
solution open & flexible.
 Dynamic OpenFlow methodology used to discover
offload physical topology.
 SDN controller talks BGP to learn logical topology.
 Mapping between existing and new offload topology
configured via API.
 Policy-Based Offload:


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Traffic analysis determines candidate routes for offload
L3 switch FIB limiting factor in solution scalability
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IP Edge Offload Orchestration
SDN Controller
Provisioning, monitoring,
dynamic forwarding
policies, etc.
Route Reflector
OpenFlow Stack
L3 Switch &
Aggregation
L3 Offload #1
iBGP Stack
PE #1
CE Router #1
CE Router #2
IP/MPLS
Core
j
CE Router #3
PE #2
L3 Offload #2
CE Router #4
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Static routing/eBGP
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DC Interconnect Offload
SDN Controller
Provisioning, monitoring,
dynamic forwarding
policies, etc.
OpenFlow Stack
L3 Offload #1
Data Centre 1
wss
IP/MPLS
Core & Transit
wss
Static routing/eBGP
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Data Centre 2
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L3 Offload #2
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WAN + Cloud
Service Orchestration
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Data Center Interconnect (DCI)
Scenario
 Virtualization has made compute all singing and
dancing
 Network aren’t currently as agile

Lack of orchestration mandates too much or not enough…
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Insufficient resources or
overprovisioned
bandwidth
Data Center
Data Center
Demand-based migration of VMs, compute tasks, and content
Ethernet & Optical
Carrier Network
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Enterprise to
Cloud Connectivity
Business
Apps
OSS
Customer Front-End
SDN Orchestration & Back-End
SelfProvisioning
Performance
Management
Usage
Billing
APIs
Network
Virtualization
PCE and
A-to-Z
Provisioning
OpenFlow
Multi-Vendor
Element
Adapters
OpenStack &
Quantum
SLA
Monitoring
Customer
Portal
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Automatic
allocation of
data center
resources
including
VMs
Data center connectivity
automatically
provisioned
Data
Center
Customer orders
cloud service
(e.g. IaaS)
Data
Center
Enterprise
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3
Ethernet & Optical
Carrier Network
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Multi-vendor POC
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NFV Definition and Framework
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NFV
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NFV
 NfV is an endgame which is
enabled by SDN.
 NfV needs cloud
management stuff – and
more.
 Network & Application
aware orchestration.
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NFV
OSS
MANO
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Provider Edge
P P B
E E R
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Mobile Packet Core
M
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BRAS
SBC
CDN
DPI
P P B
E E R
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OSS
More Sub’s!
MANO
One more
BRAS VM
NFVO
BRAS
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Load Balancer
Firewall
DPI
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OSS
MANO
5 more
MPC VM’s
Footy’s on, getting
busy over here!
NFVO
EMS
BRAS
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Mobile Packet Core
Firewall
DPI
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OSS
Fancy enterprise
service x for
customer y
MANO
One slice of PE
attached to…
…a hosted
firewall and…
… a bit of DPI
NFVO
Provider Edge
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Load Balancer
Firewall
DPI
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Today
Provider B
Wholesale
Enterprise
Provider A
Enterprise
Data Center
Residential
Wireless
Legend:
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- Network functions as specialized physical NEs
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NFV Initial Introduction
 Select NFs virtualized
Provider B
Wholesale
Enterprise
Provider A
Enterprise
Data Center
Residential
Wireless
Legend:
- Network functions as specialized physical NEs
- Generic switch as physical NE
- Data Center providing NFV
Infrastructure services
- Virtual network functions
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NFV Wider Adoption
 Majority of economically compelling NFs virtualized
 Larger freedom of (re-)location
 Consolidations
Provider B
Wholesale
Enterprise
Provider A
Enterprise
Data Center
Residential
Wireless
Legend:
- Network functions as specialized physical NEs
- Generic switch as physical NE
- Data Center providing NFV
Infrastructure services
- Virtual network functions
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