Transport SDN Ping Pan, Ph.D. March 2013
SDN starts in Data Center Networks
Data Center
SwitchVM
VM
VLAN
VLAN
Data Center
SwitchVM
VM
VLAN
VLAN
WAN Transport
SwitchSwitch
Switch Switch
Switch
Metro
MetroSwitch
Switch
Switch
SDNController
Current Work – SDN Cloud Gateway
Data Center
SwitchVM
VM
VLAN
VLAN
Data Center
SwitchVM
VM
VLAN
VLAN
WAN Transport
SwitchSwitch
Switch Switch
Switch
Metro
MetroSwitch
Switch
Switch
SDNController
Transport SDN is on the Horizon
Data Center
SwitchVM
VM
VLAN
VLAN
Data Center
SwitchVM
VM
VLAN
VLAN
WAN Transport
SwitchSwitch
Switch Switch
Switch
Metro
MetroSwitch
Switch
SwitchSDN
Controller
SDN in Transport Network is NOT about…
OSMINE• A process to ensure compatibility at each vendor equipment level • Cannot keep up with technology advancement• No use in most of the networks
E-NNI• Standardized packet-circuit network interface• Introducing much operational overhead• Zero deployment!
Static Circuit Provisioning
• A traditional practice in circuit networks• Time consuming• Not compatible with IP applications
Transport SDN is about…
Network
Virtualization
Uniformed Interface over all Vendors
Control PlaneOverlay
Operate overMulti-LayerNetworks
Operation Simplicity
For Everyday Users
Here is the framework…
Overlay Network
Bandwidth on Demand
NetPlanning
Virtual Networking
Packet Infrastructure
Transport Infrastructure Wireless Infrastructure
Offer network services through overlay
Interface the network through virtualization
Open Transport Switch (OTS) is a light weight software switch installed on transport switches for network resource virtualization
Through OTS, the SDN Controller can provision, monitor and configure the underlying switches and networks
Support of Network Virtualization
SDN Controller
WDM/ OTN/
Packet
WDM/ OTN/
Packet
OTS OTS
Traffic Traffic
Applications
ESnet & Infinera SDN Demo: background
• Provide services to more than 40 DOE research sites, including the entire National Laboratory system, its supercomputing facilities
• Connect to 140 research and commercial networks, permitting scientists to collaborate with partners around the world
• Carry between 7 to 10 petabytes of data monthly, with traffic an average of 10 times every 4 years
SDN Demo Configuration
bnl-tb-wdm-3 bnl-tb-wdm-4
40G
100G
20G 20G
20G L1 Tunnel
SDN Controller communicating with Open Transport Switch (OTS) via OpenFlow extensions
Bandwidth on Demand application for Big Data transport
3 physical transport path options (with varying latencies)
Topology Monitoring App BW on Demand App
ESnet SDN Controller
Mellanox Mellanox
Path #1
Path #2
Path #3
OTS OTS
ESnet LIMAN Production Network
Brookhaven National LaboratoryTestbed
Transport SDN
OPERATION EFFICIENCY
• Optimal edge-to-edge connection setup• Multi-layer (L1/L2/L3) integration• Network planning and automation
NEW NETWORK SERVICES
• There is no end in demand of bandwidth• DC-based enterprise requires more VPN
EXPAND TO NEW3RD PARTY SERVICES
• Interface to virtual networking applications• Support of real-time Big Data services• Creation of virtual service providers