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++, 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
TCP
via router
TCP, UDP
UDP

5. End-to-end topology Demmer-mac .11, RI tcp BBN, java .31, RI ext CL
udp
Demmer-pc
.12
udp
Pocket, C#
.63
udp
jpl1
.23, ION
mitre2
.52, RI
770
.42, RI on Nokia770
War, C#
.61
udp
tcp
udp
udp
Charon, C#
.62, GA Tech
mitre
.51, RI ext Rtr
9300, C++
.41, Symbian
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.
-format messages destined for Symbian phone.
All status reports generated and parsed.
Report-to different from source endpoint.
Partial test of TTL expiration.

7. Possible tests on Friday
Performance: end-to-end throughput.
Recovery from disruption.
Custodial retransmission.
Multi-path forwarding.