DTN%20Interoperation%20Tests

1
DTN Interoperation Tests

• IETF, San Diego
• 8 November 2006

2
Participants

• Kevin Webb GA Tech
• Jon Olson GA Tech
• Jeff Ward BBN
• Joerg Ott TKK
• Keith Scott MITRE
• Mike Demmer UCB
• Scott Burleigh JPL
• Kevin Fall Intel

3
Implementations
TKK DTN2 MITRE BBN GA Tech ION
Language C C C C, Java C C
Platform Symbian cell phone MacOS and Linux on PC and (Nokia 770) Linux on PC, external router Linux on PC, external CL adapter .NET on Win32 Linux on PC, PDA Linux on PC
Custody transfer ? ? ? ? ?
Status rpts ? ? ? ? ?
TCP CL ? ? ? ?
UDP CL ? ? ? ? ?
Descended from DTN2.
4
Interoperation Demonstrated
TKK DTN2 MITRE BBN GA Tech ION
TKK TCP TCP TCP via router via router
DTN2 TCP TCP, UDP TCP, UDP UDP UDP
MITRE TCP TCP, UDP TCP, UDP UDP UDP
BBN TCP TCP, UDP TCP, UDP UDP UDP
GA Tech via router UDP UDP UDP UDP
ION via router UDP UDP UDP UDP
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End-to-end topology
Demmer-mac .11, RI
BBN, java .31, RI ext CL
Demmer-pc .12
Pocket, C .63
tcp
udp
udp
udp
jpl1 .23, ION
mitre2 .52, RI
War, C .61
770 .42, RI on Nokia770
tcp
udp
udp
udp
mitre .51, RI ext Rtr
9300, C .41, Symbian
Charon, C .62, GA Tech
tcp
Status reports direct to demmer-mac Destination
dtn//9300.dtn/send
Hey, these status reports are kina useful.
6
Features tested

• End-to-end transmission across 9 links (10 nodes
  in total).
• Without custody transfer
• With custody transfer
• Payload sizes varying from 6 bytes to 1545 bytes.
• Raw text messages.
• Email-format messages destined for Symbian phone.
• All status reports generated and parsed.
• Report-to different from source endpoint.
• Partial test of TTL expiration.

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Possible tests on Friday

• Performance end-to-end throughput.
• Recovery from disruption.
• Custodial retransmission.
• Multi-path forwarding.