Embed Size (px)
DESCRIPTION
In the hybrid packet-optical circuit switch network, optical circuit switches (or photonic switches) are installed in a data center to augment packet-based switching to create a hybrid solution. Network management scripts or software-defined networking (SDN) are used to redirect data flows from one network to another. The flow detection and redirection can be based on a number of factors including scheduled events such as virtual machine or data migrations, or real time events such as a network analytic requesting more bandwidth.
Citation preview
Big Data At Light SpeedThe Software Defined Packet/Optical-Circuit
Datacenter Network
Santa Barbara, CA
CALIENT Technologies Inc.
WWW.CALIENT.NET
TM
2 © 1999-2013 CALIENT Technologies – All Rights Reserved
Server Aggregation
(TOR)
Cluster Aggregation
(CA)
Data Center Network TrendsThe Problem
Flat Topologies No Oversubscription Large machine-machine data
flows (e.g. VM Migration, Hadoop)
75% of Traffic is East-West Low latency required Scale to 100G & beyond
75 % Traffic
Data Center Aggregation
Places huge demand on Cluster Aggregation layer • Doesn’t scale well• Expensive in $, power,
space, & adds latency• Replace or Upgrade
regularly
3 © 1999-2013 CALIENT Technologies – All Rights Reserved
Research Has Predicted a Solution:3D MEMS Optical Circuit Switching in Datacenters
IBMGoogle
IntelNEC
UC San DiegoUniversity of Essex
Los Alamos National LaboratoryUniversity of Pittsburgh
Rice UniversityCarnegie Mellon University
University of Illinois
4 © 1999-2013 CALIENT Technologies – All Rights Reserved
Cluster Aggregation
(CA)
Server Aggregation
(TOR)
OCS1
OCS2
OCS3
OCSN
Data Center Aggregation
Topology Database
Routing Switching Control Plane OCS Control Plane
Management Plane
Control Plane
Solution: Hybrid Datacenter NetworksThe New Hybrid Data Center Solution
Packet Network handles short bursty flows
OCS Trunk network switches in on demand to support large persistent flows.
• Massive Bandwidth• Ultra Low latency
SDN Management & Control Plane manages flows between fabrics
OCS network expands to support 100G and beyond without upgrade
Scalable, High-Capacity, Low-Latency, Future-Proof
5 © 1999-2013 CALIENT Technologies – All Rights Reserved
Solution: Hybrid Datacenter NetworksMacro Level Economics
Sources:(1) “The Emerging Optical Datacenter”, OFC 2011, Los Angeles, CA.(2) “Helios - A Hybrid Electrical/Optical Switch Architecture for Modular Data Centers”, Sigcomm 2010, New Delhi, India.
6 © 1999-2013 CALIENT Technologies – All Rights Reserved
What Is 3D MEMS Technology?
3D MEMS structure• 384 Mirrors/Chip• 2 Mirror Planes with Electrostatic actuation
Pure Photonic Layer Circuit Switching Polarization, Bit Rate, & Wavelength independent
<2 dB median loss (3 dB max) 25 ms typical setup time, < 60 ns latency
CALIENT’s 3D MEMS
7 © 1999-2013 CALIENT Technologies – All Rights Reserved
Cluster Aggregation
(CA)
Server Aggregation
(TOR)
OCS1
OCS2
OCS3
OCSN
The Hybrid Data Center SolutionExample “Real Time” Scenario
Starting State: Active packet communication between TORS 1 & 4 (Green)
Data Center Aggregation
Routing Switching Control Plane OCS Control Plane
Topology Database
Management Plane
Control Plane
8 © 1999-2013 CALIENT Technologies – All Rights Reserved
Cluster Aggregation
(CA)
Server Aggregation
(TOR)
OCS1
OCS2
OCS3
OCSN
The Hybrid Data Center SolutionExample “Real Time” Scenario
Starting State: Active packet communication between TORS 1 & 4 (Green)
High bandwidth persistent flow opens between TORs 1 & 4, constrained due to packet network capacity & latency (--------)
Data Center Aggregation
Routing Switching Control Plane OCS Control Plane
Topology Database
Management Plane
Control Plane
9 © 1999-2013 CALIENT Technologies – All Rights Reserved
Cluster Aggregation
(CA)
Server Aggregation
(TOR)
OCS1
OCS2
OCS3
OCSN
The Hybrid Data Center SolutionExample “Real Time” Scenario
Starting State: Active packet communication between TORS 1 & 4 (Green)
High bandwidth persistent flow opens between TORs 1 & 4, constrained due to packet network capacity & latency (--------)
Packet network notifies control plane (……..)
Data Center Aggregation
Routing Switching Control Plane OCS Control Plane
Topology Database
Management Plane
Control Plane
10 © 1999-2013 CALIENT Technologies – All Rights Reserved
Cluster Aggregation
(CA)
Server Aggregation
(TOR)
OCS1
OCS2
OCS3
OCSN
The Hybrid Data Center SolutionExample “Real Time” Scenario
Starting State: Active packet communication between TORS 1 & 4 (Green)
High bandwidth persistent flow opens between TORs 1 & 4, constrained due to packet network capacity & latency (--------)
Packet network notifies control plane (……..)
Management/control plane instructs OCS to open trunk path between TORS (……..)
Data Center Aggregation
Routing Switching Control Plane OCS Control Plane
Topology Database
Management Plane
Control Plane
11 © 1999-2013 CALIENT Technologies – All Rights Reserved
Cluster Aggregation
(CA)
Server Aggregation
(TOR)
OCS1
OCS2
OCS3
OCSN
The Hybrid Data Center SolutionExample “Real Time” Scenario
Data Center Aggregation
Routing Switching Control Plane OCS Control Plane
Topology Database
Management Plane
Control Plane
Starting State: Active packet communication between TORS 1 & 4 (green)
High bandwidth persistent flow opens between TORs 1 & 4, constrained due to packet network capacity & latency
Packet network notifies control plane
Management/control plane instructs OCS to open trunk path between TORS
New topology settles and application runs without congestion
12 © 1999-2013 CALIENT Technologies – All Rights Reserved
A Hybrid Packet-Circuit Network Needs ControlSDN Enables The Solution
Hybrid Packet-Circuit Networks• Packet-Circuit Convergence
in the Data Center Network
Enabled by SDN• Optical and Packet devices
coexist in infrastructure layer
• Unified control through Control and Application layers
13 © 1999-2013 CALIENT Technologies – All Rights Reserved
Scheduled Events• Virtual Machine migration (Server Virtualization)
• MapReduce function in Hadoop Processing Environment
• Storage application requesting data migration (Network Storage)
Real Time Events• Network monitoring request for additional bandwidth
―Based on Analytics (traffic threshold, packet congestion, etc)
13
Example Use Cases
14 © 1999-2013 CALIENT Technologies – All Rights Reserved
The Next Generation S320 Photonic Switch
Optimized for Data Centers and Cloud Computing networks
320 x 320 User Ports - 640 Single Mode Fiber Terminations
Up to 100 Gbit/s per port and beyond (> 32 Tbit/s)
25ms setup time, < 60ns latency Ultra low power (45 Watts) &
small size (7 RU, 45 lb) TL1, SNMP, OpenFlow APIs
Big Data At Light Speed
Santa Barbara, CACALIENT Technologies Inc.
WWW.CALIENT.NET
TM
Thank You!
