Network Transparency in a Mountain Rescue Domain Ben McCarthy (Lancaster University)
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Transcript of Network Transparency in a Mountain Rescue Domain Ben McCarthy (Lancaster University)
![Page 1: Network Transparency in a Mountain Rescue Domain Ben McCarthy (Lancaster University)](https://reader030.fdocuments.in/reader030/viewer/2022032709/56649ed55503460f94be5708/html5/thumbnails/1.jpg)
Network Transparency in a Mountain Rescue Domain
Ben McCarthy(Lancaster University)
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Presentation OverviewMountain Rescue Scenario:
• Mountain Rescue Network Model• Provides important input into our MANEMO based
research• Interface Software
MANEMO (MANET + NEMO):• MANET-Centric & NEMO-Centric MANEMO• Unified MANEMO Architecture (UMA)• Introduce other MANEMO use case scenarios
IPv6 Dead or Alive?• My perspective
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Challenging domain for IP communications :
• Potential Benefits for mountain rescue team: Location Info, voice + video, improved mission control, communication resilience…
Research in Collaboration with
the Cockermouth MRT
• Lake District (UK)
Mountain Rescue Scenario
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Mountain Rescue NetworkCommunication model:
• Avoid reliance on fixed infrastructure where possible• Ad-Hoc / Hastily Formed Network (HFN) structure• Fallback onto any available access network (GPRS, SAT, TETRA,
etc)• Implies possible service degradation and additional costs
Rescue team structure:
• ~40 members | Divided into search parties of 3 – 6 members• 3 All Terrain Vehicles | 4th in the pipeline
Network model based on use of Mobile Networks:
• Sporadic introduction of COTS devices into the network. • Support the use of PANs and VANs
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Mountain Rescue Network
Primary Communication:
• Short range communication between team members
• 802.11a/b/g ad-hoc• Longer Range communication
to vehicles and HQ• WiMAX?
Secondary Communication:
• GSM/GPRS/UMTS• Partial coverage
• Satellite (Vehicles), Tetra• Strategic hotspots - ISS
Comms work done as part of the EU Project U2010
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MANEMO (MANET + NEMO)NEtwork MObility - NEMO:
• Mobile IPv6 extension to support entire networks of moving devices
• Vehicle based networks: Trains, Buses, Planes, Domestic Vehicles• Personal Mobile Routers (PMRs)
Nested NEMO Problem:
•When NEMOs connect to one another
•Packets visit every HA in the path•Routing becomes extremely inefficient
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MANEMO (MANET + NEMO)
MANET + NEMO combination is mutually beneficial:
• NEMO-Centric MANEMO (NCM)• MANET routing used to optimise communication between
Mobile Routers in Nested NEMO scenario
• MANET-Centric MANEMO (MCM)• NEMO HA & Tunnelling used to provide MANET with
consistent global reachability
MCM• Mountain Rescue Scenario• Fleet / Convoy / Motorcade Scenarios• Military Scenarios
NCM• PANs on Trains / Planes• Intelligent Transport Services (V2I)• Some Sensor Networks
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The Unified MANEMO Architecture (UMA)Lancaster University’s Unified MANEMO Solution:
• Support NCM & MCM scenarios with one solution
Fundamental Concept:
• Maintain global connectivity and efficient routing through HA – HA communication and Proxy-HA registration
• MR Attaches to MANEMO Fringe Stub (MFS)
• Obtains the Addr of nearest Gateway MR
• Sends Binding directly to Gateway MRs HA
• Proxy-HA
• Proxy-HA performs HA-HA Binding with target
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UMA: Mountain Rescue Scenario Mountain Rescue model is an example of MANET-Centric MANEMO
• Intercommunication between team members (MRs) is key• MR losses connectivity locally with MFS
• Tunnel setup & HA involvement in MANET routing ensures connectivity remains – Network heterogeneity is hidden from other MRs
Simplistic Model:- Only 1 Home Network (1 HA)• Known as Aggregated MCM
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UMA: Mountain Rescue Scenario Complex Model:- More than 1 Home Network (>1 HAs)
• Rescue teams often collaborate on missions• Multiple teams = Multiple HQs = Multiple Has• Known as Non-Aggregated MCM
HA-HA Communication
• HAs update one another…
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Mountain Rescue Network InterfaceA fundamental function of the MRN will be to improve rescue mission coordination:
• Developed Mountain Rescue Interface to illustrate capabilities
Interface Features:
• 2D and 3D Real time mapping• Rescue mission playback
• Using GPS coordinates captured by any device
• Distributed client support• Rescue Team member database• Geofencing
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Mountain Rescue Interface
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IPv6 Dead or Alive?Motivation to migrate to IPv6?
• Latest predictions for IPv4 Address space saturation• Exhaustion of IANA unallocated pool: Mar 2010 *• …but if unadvertised address pool is utilised: Jan 2018 *
No demand from the end user• Users see services and applications• No Killer App/Service that can only be provided by v6
NAT now seen by many sysadmin as a useful tool• Security tool• More freedom with addressing
* Geoff Huston’s IPv4 Address Report: http://www.potaroo.net/tools/ipv4
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IPv6 Dead or Alive?
Technologies that could rapidly affect the uptake of IPv6 exist:
• Mobile Phones – If every handset has a static IP • Mobile Networks
• Vehicular Networks• Personal Mobile Routers
Unknown technologies may appear
• TCP Stack per core concept • ??
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IPv6 Dead or Alive?
Conflicting Interests: Equipment Vendors vs. ISPs
• Vendors:• IPv6 is supported in most mainstream networking
equipment, Operating Systems and a vast array of applications.
• Vendors want a return on that investment• Additional revenue available from retraining, etc
• ISPs• ISPs would bear the brunt of the changeover costs
(training, equipment upgrades, teething problems).• Simple demand and supply: Static IP sales
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Finally…
“The GreatIPv6 Experiment” maybe an interesting benchmark of IPv6 in the current Internet
• www.ipv6experiment.com
Simple Concept:
• Offer users a high demand service that can only be accessed over IPv6 – For free!
• Then monitor usage, diagnose large scale problems and generally assess the feasibility of using IPv6 today.
• Which high demand service have they opted for?• Adult Entertainment
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Further Information: www.network-mobility.orgFurther Information: www.network-mobility.org
Questions?