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SDN OVERVIEW THE BUSINESS VALUE OF SDN
Nigel Oakley DIRECTOR, ADVANCED TECHNOLOGIES, SDN
JUNIPER’S SDN STRATEGY: 6-4-1
Centralize Management Extract Services Centralize Controller Optimize the Hardware
4 – Juniper Steps
Standard Centralize Separate Use the cloud Common Platform Apply Broadly
6 – General Principles
1 – Licensing Model
JUNIPER SOFTWARE ADVANTAGE
Full Use/Elastic Transferable Software
Lifetime Assurance
Principles of SDN
6 GENERAL SDN PRINCIPLES
Separate networking software in 4
planes – Forwarding, Control,
Services and Management
Optimize each network element
Centralize Management, Services
and Control planes
Simplifies network design and
lowers opex
Adopt Cloud for elastic scale and
flexible deployment, enabling
usage-based pricing
Reduce time to services and
correlates cost based on value
Common Platform for network and
security applications and
management integration
Enables new business solutions
Standard protocols for
interoperability across vendors
Provides choice and lowers cost
through interoperability
Broadly Apply to Network & Security,
Enterprise & Service Provider
networks, Mobile & Wireline
Flexibility and new business
opportunities
Customer benefits
Automated orchestration
& provisioning to enable
private/hybrid cloud
Open, Programmable
physical networks with
future
proof investment protection
SDN 4 LAYERS
MANAGEMENT
FORWARDING Security Routing Switching
EASIER
LOW
RISK
Elastic scaling for rapid
deployment of L4-L7
services SERVICES
ADC, FW, IPS, Traffic Mon, DDoS, etc. FASTER
Platform Applications API
s
Agility to enable
multi-tenant networks CONTROL
Control Analytics Configuration
SDN CONTROLLER: NETWORK
ORCHESTRATION FLEXIBLE
FINANCE HR MARKETI
NG
ORCHESTRATION
• Centralize management, analytics
and configuration to provide a
single pane of glass
• Optimize operations
• Integration with OSS/BSS and
orchestration systems for
centralized decision-making and
execution through APIs
Centralize
1ST STEP TO TRANSITION TO SDN
CENTRALIZE MANAGEMENT
JUNOS SPACE
FLEXIBLE MANAGEMENT PLATFORM FOR SDN
Junos Space Network Management Platform Deep EMS w/ extensive FCAPS, provisioning, extensive automation
Junos Space Management Applications Junos Space Network Director, Security Director, Service Activation Director
Junos Space SDK & APIs Programmable interface to customize apps/ Easy MoM & 3rd party integration
1
2
3
Junos Space Centralized, Automated Network Management
• Extract services from network and
security devices by creating
service VMs
• Leverage cost and sourcing
advantages of x86 servers
• Enable dynamic scalability and
enhanced service agility
• Leverage existing investment in
the Mx to offload services to the
Mx, while running these services
on x86
Extract Services (Network
Function Virtualization)
2ND STEP TO TRANSITION TO SDN
EXTRACT SERVICES
Carrier
Grade NAT
FIREWALL DPI PE
ROUTER
Caching &
Managed
Video
SGSN/GGSN
GGSN, P/S-
GW
WAN
OPTIMIZATION BRAS
TESTER QoE
MONITOR
RADIO ACCESS
NETWORK
NODES
EXTRACT SERVICES
THE PAINS OF NETWORK SERVICE PROVISIONING
Time to deploy new service is too long
New service - New Box, New OS
Scaling a Service – New Box/New Line card
More space, More energy, More cooling, More
CAPEX
More OPEX to design, integrate and operate
Shorter HW lifecycles, more procure-design-
deploy, with little or no benefit
LEGACY NETWORK APPLIANCE APPROACH CHALLANGES
SLOW NOT AGILE EXPENSIVE
Carrier
Grade NAT
FIREWALL DPI PE
ROUTER
SGSN/GGSN
GGSN, P/S-
GW
WAN
OPTIMIZATION BRAS
TESTER QoE
MONITOR
RADIO ACCESS
NETWORK
NODES
LEGACY NETWORK APPLIANCE APPROACH
Juniper Networks
MX 3D Router
EXTRACT SERVICES
NFV SIMPLIFIES SERVICE PROVISIONING FOR SDN
• Create differentiation
• Accelerate service provisioning
NEW ELASTIC, DYNAMIC AND RELIABLE APPROACH
• Reduce CAPEX
• Reduce OPEX
x86 Server/x86 Blade
JunosV App Engine
Vir
tua
l M
ob
ile C
on
tro
l
Gate
way
DP
I
Junos C
onte
nt E
ncore
JunosV
Firefly
Sonus S
essio
n B
ord
er
Contr
olle
r
Oth
er
serv
ices
Oth
er
3rd
part
y s
erv
ices
Junos D
DoS
Secure
Junos W
ebA
pp S
ecure
Junos P
uls
e U
AC
Secure
Junos P
uls
e S
SL S
ecure
Junos S
ubscriber
Aw
are
Security Services
Network
Services
Juniper Network and
Security service
Third-Party
Applications
• Centralize controller to have a
broad view of the network and
holistically optimize traffic flow
• Service chaining enables multiple
network and security services to
dynamically connect in series and
be inserted into traffic flows
• Increase network agility and
decrease provisioning time
• SDN controller is logically
centralized but can be physically
distributed
Centralize Controller
3RD STEP TO TRANSITION TO SDN
CENTRALIZE CONTROLLER
BARRIER TO PRIVATE/HYBRID CLOUD
CAN I VIRTUALIZE MY…
Compute Network Storage
X
Manual. Inefficient. Low scalability. Fragile.
Manual configuration of
VLANs at every switch
Service insertion is complex
Performance
Management, Scale -
4096 Tenant IDs
NETWORK VIRTUALIZATION JOURNEY
VLAN
High latency. Low scalability. New failure mode. Fork-lift upgrade.
First packet of every flow
is punted to controller
Centralized
Openflow
Controller
“Touch” every switch,
as new tenants/VM are
added
Openflow
Forklift upgrade to
Openflow supported
hardware
NETWORK VIRTUALIZATION JOURNEY
EARLY CIVILIZATION: OPENFLOW CONTROLLER
Packets are not
punted to controller
Existing protocols
establish
IP fabric underlay
No per-tenant state in physical
network:
Switches only know physical
servers
Low latency. High scalability. Robust. Evolutionary.
Controller proactively programs
virtual
overlay switches & gateways only
NETWORK VIRTUALIZATION JOURNEY
PROACTIVE OVERLAY NETWORKS
JUNOSV CONTRAIL CONTROLLER
SDN Controller
Configuration Analytics
Control
Virtualized Server
VM VM VM
Virtualized Server
VM VM VM IP fabric (underlay network)
Juniper Qfabric/QFX/EX
or 3rd party underlay switches
Juniper MX
or 3rd party gateway routers
Tenant VMs
BGP
Federation
Horizontally
scalable
Highly available
Federated
BGP
Clustering
JunosV Contrail Controller
KVM Hypervisor +
JunosV Contrail vRouter/Agent
(L2 & L3)
REST
XMPP
SDN
CONTROLLER
Control
Orchestrator
OVERLAY ARCHITECTURE
XMPP BGP +
Netconf
• Optimize hardware based on a
simplified set of functions it needs
to perform due to the separation of
the four planes
• SDN ready platforms that are
Open and Programmable
• Flexibility to choose optimized
hardware for high performance or
generic hardware for low cost
Optimize Hardware
4TH STEP TO TRANSITION TO SDN
OPTIMIZE HARDWARE
THE FACTS
of Enterprises
are very familiar
with SDN
Market penetration
deployed by 2016
Still early days
15%
1%
10%
Physical
networks
Power, space, cooling,
cables,
laws of physics, value of
silicon
New acronyms
Likely to deploy
overlay within
3 years
NVGRE
STT MPLS
OTV
OPENFLOW
VXLAN
QinQ
80%
Unlikely or unsure
OVSDB
20%
OpenS
tack,
Clo
udsta
ck
Service Chaining
Services Plane
Management Plane
Forwarding Plane
Control Plane O
rchestr
ation
JUNOSV CONTRAIL +
MORE
JUNOSV APP ENGINE +
NETWORK +
SECURITY SERVICES
(NFV)
JUNOS SPACE MGMT
PLATFORM +
APPLICATIONS
ALL HARDWARE
PLATFORMS (MX, EX,
SRX, QFX, etc)
SDN PRODUCT MAPPING
4 PLANES -> PRODUCTS
Are you ready to adapt to this new model?
SDN will transform networking
& business forever
AGILITY
FLEXIBILITY INTELLIGENCE
COST SAVINGS
CENTRALIZE
PROGRAMMABILITY
DEPLOY FASTER
CUSTOMIZE
AUTOMATION
DYNAMIC