Disconnected, Non end-to-end networks
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Transcript of Disconnected, Non end-to-end networks
Disconnected, Non end-to-end networks
Presented by: Khaled Harras
So what happens when both wired and wireless communication break down?!
Wireless Ad Hoc Networks
• Connected end-to-end ad hoc networks
A
B
A
B
• Disconnected ad hoc networks
Epidemic Routing
The rise of the Interplanetary Internet….!
Similar Problems,Common Solutions
Fiber Satellites
Cable
Mobile/Wireless
WDM
Nomadic
Terabit communications
low delay
Self-organizing
FTP/TCP/IP
Short-haul communications
TerrestrialInternetStandards
Opportunity for leverage
S-band X-bandKa-band
LEOConstellations
MarsNetwork
Deep-spaceOptical
Megabit communications
high delay
Long-hau
l com
munic
atio
ns
SpaceInternetStandards
File-basedOperations InterPlaNetary
InternetArchitecture
So where is the problem??...
….Only when planets come in the way!
New, expandable architecture…
NetworkIP
NetworkIP
Phys 1
Link 1 Link 1
Phys 1 Phys 2
Link 2
Internet: a Network of Connected Sub-Networks
Phys 2
Link 2
Phys 3
Link 3
App
App
App App
App
App
NetworkIP
TransportTCP
NetworkIP
TransportTCP
Phys 3
Link 3
Subnet 1 Subnet 2 Subnet 3
TCP/IP: Interconnected Networks
Network of internets spanning dissimilar environments
Bundle
App
App
App App
App
App
Bundle Bundle
Phys 1
Transport a
Network a
Link 1 Link 1
Phys 1 Phys 2
Link 2
Network a
Phys 3
Link 3
Network b
Transport b
Phys 2
Link 2
Network a
Transport a
Phys 3
Link 3
Network b
Transport b
Internet A Internet B
Bundles: Interconnected Internets
Is all this “way out there”??!!
Are there other applications??
YES!!.... Extreme challenged networks.
The rise of Delay Tolerant Networks (DTNs)…..
“Regions” instead of “Internets” in DTNs
Persistent Storage and Custody Transfer
There are even more down-to-earth (literally!) applications….