Re: [dtn-security] Newbie seeking some security related advice
Armando Caro <acaro@bbn.com> Thu, 28 May 2009 00:16 UTC
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Date: Wed, 27 May 2009 20:13:51 -0400
From: Armando Caro <acaro@bbn.com>
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To: "Ivancic, William D. (GRC-RHN0)" <william.d.ivancic@nasa.gov>
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Subject: Re: [dtn-security] Newbie seeking some security related advice
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Ivancic, William D. (GRC-RHN0) wrote: > I believe DARPA is using DTN for voice networks but I believe the disruption is expected to be very quick fades and the like or perhaps that voice simply will not make sense at certain times. I believe you are referring to the work that BBN is doing for the DARPA WNaN program. For this program, we run IP over DTN and use VoIP without modifications to the VoIP application. We are using the BPA as a forwarding engine that works in both connected and disconnected scenarios. VoIP traffic (and other delay sensitive traffic) are only routed/forwarded to destinations that are currently connected, since VoIP doesn't make sense for disconnected destinations. If a node receives VoIP traffic for a disconnected destination, the traffic is dropped. One important take-away from this work... the motivation of DTN is to support delay/disrupted scenarios and apps that can operate in that regime, but it is possible to implement a DTN stack that can also deal with time-sensitive traffic. Armando
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