Transcript Towards Seamless Application Delivery Using Software Defined

SDX/SDI Design for Disaster
Scenarios
Michael Zink
UMass Amherst/TU Darmstadt
Department of Electrical and Computer Engineering
Agenda
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Motivation
Vision
SDX/SDI definition
Prototype SDX
Challenges
Outluck
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The Internet Today
 Autonomous System (AS)
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a unique entity with a routing policy,
e.g ISP
 Border Gateway Protocol
(BGP) - destination IPbased
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i-BGP - interior routing Protocol used
to communicate within ASes (TCP)
e-BGP - exterior routing protocol used
to communicate between ASes
(Physical link)
 Internet Exchange Point (IXP)
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Physical point used by ISPs for traffic
exchange
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Into the Future - SDX-enabled Internet
SDN Domain
CPB1
SDX3
AS3
SDN Domain
AS4
Policy-based
Routing
SDX1
AS1
SDX5
CPA2
CPB2
CPB3
SDN Domain
SDX4
SDX2
AS5
CPA1
SDN Domain
AS2
Content Provider A
Software Defined
Exchange(SDX)
SDN Domain Engineering
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Content Provider B
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Into the Future - SDX-enabled Internet
 Software-Defined Networking
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Flow rules based not only on IP but also type-of-service, port,
VLAN ID, etc.
 Software Defined Exchange (v1.0)
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Software-defined IXP that provides all the advantages of
Software Defined Networking
*Ref: Policy-based routing - Pyretic is used to define policies
*SDX: A Software Defined Internet Exchange - Arpit Gupta, Laurent Vanbever et Al. – ACM-SIGCOMM 2014
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Our Vision – SDX-enabled Internet
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Storage and compute nodes colocated with powerful network
infrastructure
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SDX/SDI Definition (NSF Workshop)
We envision a world . . . in which all aspects of the
planet’s cyber-infrastructure form an interconnected,
multi-tenant (sliced), and deeply programmable
planetary-scale ensemble composed of trillions of
devices owned and operated by millions of partiallycooperating, partially-competing organizations. It is
conceivable that today’s Internet will run in just one
“slice” across this infrastructure, with many other
novel services populating other slices.
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SDX/SDI Definition (NSF Workshop)
 SDI and SDX are defined as the combination of
virtualized computing (e.g., cloud computing),
SDR and SDN
 Leading to a rapidly thickening fabric of multidomain, heterogeneous, edge clouds and
interclouds at a scale far beyond today’s Internet
 Supporting large scale cyber-physical systems
including cities, autonomous automobiles and
ubiquitous drones providing
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How can applications benefit from SDX?
 Traffic Characterization
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Application-based and Domain-based
 Reactive Flow Rule Installation
 Traffic Prioritization
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Severe weather warning data has higher priority over
video traffic
 Third-party Policy Implementation
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Content and File sharing
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Prototype Implementation of SDX
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Nowcast Weather Application
Features:
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Short-term (10-15 minute) weather
prediction
Severe-weather prediction for timely
evacuation
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Requirements:
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High-Bandwidth connection
Compute-intensive Resources for
Processing
Storage of Nowcasts for Web Server
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Experiments - Applications
a) VLC DASH with 3 Iperf Flows
from each VM
b) Nowcast with 3 Iperf Flows
from each VM
c) Nowcast Application with VLC
DASH
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Possibilities - Nowcast
Karlskrona, Swedish
Met. Service
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Severe Weather Warning System
 Network of 8 radars
 Closed-loop operations
 Networking, compute, and
storage resources required
 Faster dissemination of
warning information to end
users in severe weather
events
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Prototype
 Install at MGHPCC
 Radars on UMass Campus
 Plenty of compute and
storage resources
 GENI Rack
 Different SDN domains
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Challenges
 What are the abstractions to allow CPS and
emergency management applications to program
SDX/SDI?
 How can an SDX be designed such that it can be
part of a larger Software Defined Infrastructure?
 How will a control plane for an SDX/SDI look
like?
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Outlook
 SDX in research clouds
• SDI
 SDX in research HPC
• Support computation-heavy sciences
 SDX in future Internet testbeds
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Interoperability
At-scale
Federation
Policy
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