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SDN AND NETWORK EVOLUTION
SDN APPLICABILITY TO THE NETWORK E2E
Javier Martín Rodríguez
Alcatel-Lucent España
October 24th 2013
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ALU´s Network evolution vision
1. Cloud and NFV Foundation: Cloudband
-
Challenges and Goals
-
Operating the distrubuted Cloud
-
Cloudband Architecture
CloudBand
Management
System
CloudNode
Carrier PaaS
2. SDN for DC & Wide Area Networking
-
Enterprise, 3rd Party,
and SP Applications
EXPERIENCE
ENABLEMENT
Applicability of Nuage VSP further to the
Data Center
Network abstraction
and exposure
DECISION
ANALYTICS
Customer &
Network Analytics
OPTIMIZATION
IP-Optics convergence
CONTROL
SDN
Network
CloudBand
Controller
SDN DC Control
SDN WAN Controllers
Policy/Charging
IP-Network evolutions towards
virtualization
SDN Control
SDN Contollers Federation
Federation
Network
Orchestration
IP/Optical NM/SM
GMPLS Control
.
MPLS
Control Plane
MPLS Control Plane
IP/MPLS
GMPLS Control Plane
Wireless/Wireline
Access
Metro Aggregation
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Fixed Edge /
Wireless Packet Core
IMS
Data Center
OTN/WDM
IP-Optical Backbone
DC
Network
Compute/
storage
resources
SOFTWARE DEFINED NETWORKING (SDN) TENETS
OPENNESS
• Programmability with open APIs
• Policy-based network abstraction
AGILITY
• Scalable automation with need-driven service
activation and provisioning
RESOURCE
EFFICIENCY
• Dynamic resource control with global network
view
• Simplified CPE and management
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PROGRAMMABILITY
Policy-based network abstraction and open APIs
• Simplified representation of network to applications by service-layer abstraction
of network constructs to hide underlying complexity
WEB VELOCITY &
SCALE
Demand-driven service activation and provisioning
NETWORK
RESOURCE
EFFICIENCY
Dynamic resource control with global network view
• Customer trigger (packet, flow, VM creation) initiates dynamic network
provisioning and service activation as directed by pre-defined policies
• Extend cloud efficiency model to WAN
• Leverage network statistics, multi-layer topology, dynamic virtual network state +
control (slicing) to optimize end-to-end service delivery
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WAN
Data Center
ALCATEL-LUCENT “END-TO-END” SDN ARCHITETCURE
OUR VISION OF THE FUTURE:EVOLVING HLN TO A PROGRAMMABLE,
CONSUMABLE CLOUD NETWORK
NETWORK APPLICATIONS
Virtualize
NETWORK SERVICES CONTROL
IP INFRASTRUCTURE
Software
Define
MASSIVE PARADIGM SHIFT FROM CLOSED, STATIC CONFIGURATION TO OPEN, DYNAMIC ADAPTATION
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ALCATEL-LUCENT CLOUD IP NETWORK VISION: THE 3 PILLARS
1
Cloud
services &
capabilities
Cloud
intelligence
& control
IT and Application
Services
2
Virtualized
Network
Functions
Cloud Orchestration
& Automation
(CloudBand)
Network Virtualization
& Automation
(Nuage Networks)
MAN/WAN
Flexible Virtualized Network
Functions running on an IT
infrastructure (augmented by
high performance dedicated
functions as appropriate)
2.
2
End to end automated cloud
orchestration, maximizing
flexibility and efficiency of
applications
3.
3
SDN, to enable dynamic
consumption and
programmability of the
underlying DC network and
transport infrastructure
Network
Controlling
Applications
3
Open,
distributed
cloud
infrastructure
Enterprise DC
1.
1
Network DC
Customers
DELIVERING NEW VALUE TRINITY: AUTOMATED, SCALABLE, MULTI-TENANT COMPUTE, STORAGE & NETWORKING
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WHERE DOES SDN PLAY?
NEW TECHNOLOGIES AUGMENTING EXISTING FUNCTIONALITY
1
Local
Distribution &
Storage
2
Customer
Premesis
2
2
Customer
Premesis
2
1 Datacenter: Enterprise/Telco Cloud, Service Chaining
2 Dynamic Service Provisioning/VCPE/SD-VPN/MBH
3 Dynamic Traffic Engineering/WAN optimization
Multi-layer optical/IP
3
Core
Metro / Regional
Network
Network
3
Internet
3
1
Regional
Datacenters
1
Cloud
storage & compute
SDN MAKE NETWORK CONSUMABLE: LOWER OPEX/CAPEX, GROW REVENUES
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OVERALL NETWORK PRINCIPLES LEVERAGED IN THE SDN CTXT
End-to-end
Principle
Policy
Network of
networks
BGP
•
•
Simple core
Intelligent edges
•
Service Federation
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•
•
•
Policy Driven
Soft Handoff
State distribution
Virtualized Services Platform – 2nd Generation SDN Solution
Current (1st Gen)
Nuage Networks VSP
Within one datacenter (partial or full)
Across multiple datacenters
Manual
Seamless, Automated
L2 with L3/L4 support
Integrated L2-L4
Proprietary
Open/Standards based (MP-BGP)
Basic
Policy-based provisioning, abstraction and analytics
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ALU Virtual Services Platform
Reference view
Value Proposition
•Reduces up to 40% of datacenter traffic
•Increases server utilization by 30%
Internet
Cloud Service
Management Plane
Datacenter
Control Plane
Virtualized
Services
VPN
Domain
Policies
Zones
Directory (VSD)
Subnets
•Seamless connectivity to enterprise
VPNs, across datacenters
Virtualized Services
Controller (VSC)
Virtual Routing &
Switching (VRS)
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Datacenter Data Plane
Datacenter 1
•Plug and play Networking with full
network abstraction
•Federation of Cloud Orchestration
(Openstack, Cloudstack, Vcloud, etc)
•Hypervisor independence
•Scales by leveraging 10y field proven
control-plane function in SROS
Datacenter 2
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SDN BENEFIT ANALYSIS: DATA CENTER NETWORKING
Bell Labs
Modeling
Avoidance of traffic
“tromboning” eliminates
redundant flows over
capacitated DC links
1st Gen SDN
Reduction in traffic hops
1G SDN
2G SDN
2nd Gen SDN
Reduction in required link capacity
Server Link
Utilization
1G SDN
1.0 Gbps / VM
2G SDN
6
Increase in maximum
possible server utilization
1.0 Gbps / VM
100%
1G SDN
80%
2G SDN
200%
60%
Additional DC LAN Capacity
Required
4
40%
100%
2
20%
0%
0
10%
30%
50%
70%
90%
DC Server Utilization
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0%
Max DC Server Utilization
SERVICE CHAINING
SIMPLIFIED OPERATION TO DEPLOY SERVICES
• Simplified service deployments
- Models dynamic service chain per customer
- Dynamically monitor Service utilization and adjust
service chain policies
• Use cases
- Gi-LAN: FW, Video optimization, NAT, DPI, etc
- DDOS Mitigation
- Virtual appliances
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THE EVOLUTION OF ENTERPRISE NETWORK SERVICES
New
Value proposition
The cloudready WAN
Dynamic Cloud
SD-VPNs & BI
Secure
VPNs & BI
Application-Aware
VPNs & BI
Service-Aware
VPNs & BI
Basic VPNs & BI
Basic WAN
connectivity
•
•
•
•
•
Dynamic, CPE-triggered provisioning:
Zero-touch activation & provisioning of
VPN and business internet services, open
standardized CPE(s)
Threat Management System:
Network-based mitigation of DDoS & related
cloud threats
Application Assurance:
Network-based monitoring and control of
enterprise and hosted applications
QoS, H-QoS, VPLS & OAM
Service level QoS and integrated VPN management
Basic L2/L2 MPLS VPNs & Business Internet:
Commodity-priced network connectivity
2010
2013
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SDVPN ARCHITECTURE - PROGRAMMABLE & AUTOMATED
Application
Define policy
once....
Application APIs
Resource
Consumption
Resource
Discovery & Control
Network Controller
SDN
Framework
Network APIs
OF
JSON
Datacenter
VM
VPN
Service
IP/MPLS
VPN
Service
Enterprise
Branch
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VM
VM
Virtual Switch
SDVPN ARCHITECTURE - PROGRAMMABLE & AUTOMATED
Application
Define policy
once....
Application APIs
Resource
Consumption
Resource
Discovery & Control
Network Controller
SDN
Framework
Network APIs
OF
JSON
Enterprise
Branch
VM
VM
OF
JSON
OF XMPP
MP-BGP
JSON
Datacenter
VM
VM
VPN
VPN
Transport
Service
Service
Virtual Switch
IP/MPLS
VPN VPN
Transport
Service
Service
Hypervisor
SERVICES
Hypervisor
Hypervisor
Servers
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VM
VM
Virtual Switch
ALCATEL-LUCENT SDN FRAMEWORK
Applications
APIs
Policy
Driven
Provisioning
Resource
Discovery &
Control
Service management
SROS-based service control plane (vPE-C)
SDN Controller
SDN Controller
Network APIs
Virtualized server
IP/optical
Virtualized servers
control plane
Virtual Switch
Virtual Switch
IP/optical
VM
VM
Service Point
(vPE-F)
forwarding
plane
Virtual Switch
Virtual
VM
VM Switch
VM
VM
VM
Converged transport
(P Router + Optical)
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VM
Service Points
(vPE-F)
ALCATEL-LUCENT SDN CUSTOMER BENEFITS
Applications
• Open: the network to
applications
APIs
Policy
Driven
Provisioning
• Agility & scale: Automate
the network services layer
• Cloud economics: Increase
network efficiency & utilization
Resource
Discovery &
Control
• Cloud economics: Simplify
the customer edge
• Agility & scale: Decouple network
service & transport layers
SDN Controller
SDN Controller
Network APIs
Virtualized server
Virtualized servers
IP/MPLS
Virtual Switch
Virtual Switch
UNI
VM
VM
UNI
Virtual Switch
Virtual
VM
VM Switch
GMPLS
VM
VM
VM
Service Point
(vPE-F)
• Converged transport: IP & Optical
integration for efficiency & scalability
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VM
Service Points
(vPE-F)
NUAGE VIRTUALIZED SERVICES CONTROL & FEDERATION
VPN
Internet
Policies
Domain
Zones
Subnets
Virtualized
Services
Cloud Service
Directory
Management Plane
Virtualized
Datacenter
Services
Control Plane
Controller
Virtualized
Federation of
controllers
IP / MPLS
Services
Controller
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
Hypervisor
DC1 Zone 2
DC1 Zone 1
Datacenter Data Plane
Service Provider Control Plane
DC WAN
Business
Router
VPN Service
Hypervisor
Datacenter 2`
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Private
Datacenter
Service Provider Data Plane
Realizing the value of the
network through applicationoptimized orchestration
spanning computing, storage
and network resources
NETWORK VISION
Enterprise, 3rd Party,
and SP Applications
EXPERIENCE
ENABLEMENT
Network abstraction
and exposure
DECISION
ANALYTICS
Customer &
Network Analytics
OPTIMIZATION
SDN Control
SDN Contollers Federation
Federation
Network
Orchestration
SDN
Framework
CloudBand
CONTROL
SDN DC Control
SDN WAN Controllers
Policy/Charging
Data Center
IP/Optical NM/SM
GMPLS Control
.
MPLS
Control Plane
MPLS Control Plane
IP/MPLS
GMPLS Control Plane
Wireless/Wireline
Access
Metro Aggregation
IMS
Fixed Edge /
Wireless Packet Core
OTN/WDM
IP-Optical Backbone
DC
Network
Compute/
storage
resources
SIMPLIFIED SEAMPLESS IP/MPLS/OPTICAL INTEGRATED NETWORK,
LEVERAGING THE SDN CENTRALIZED SERVICE ORCHESTRATION CAPABILITIES
21
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