dtnrg - Monday, 25 July 2011

dtnrg

dtnrg@jabber.ietf.org

Monday, 25 July 2011< ^ >

sftcd has set the subject to: Delay-Tolerant Networking Research Group - IETF 79

Room Configuration

GMT+0
[12:40:52] mayer joins the room
[12:40:59] mayer leaves the room
[12:41:16] mayer joins the room
[12:41:33] mayer leaves the room
[12:42:15] mayer joins the room
[12:48:30] mayer leaves the room
[12:48:55] mayer joins the room
[12:53:19] brentonwalker joins the room
[13:00:54] Andrew Sullivan joins the room
[13:04:35] Will joins the room
[13:05:02] <Will> Good Morning. I am the jabber scribe today.
[13:06:40] <Will> Approximately 60 in room from quick count
[13:07:03] <Will> agenda bashing
[13:07:08] gorryf joins the room
[13:08:41] nestor.tiglao joins the room
[13:08:50] <Will> 6 RFC's since Prague with three in progress
[13:09:49] <Will> tcpcl and udpcl up for revision
[13:10:01] <Will> looking for editor for encapsulation-06
[13:10:34] elwynd joins the room
[13:13:14] gorryf leaves the room
[13:14:03] <Will> will Ivancic indicated he would see if someone at NASA could take this on.
[13:15:20] avri joins the room
[13:16:53] <Will> Raytheon/BBN talk on erasure codeing for DTN. Looking at moving large bundles.
[13:17:01] <elwynd> are the erasure coding slides on the web yet?
[13:17:35] <mayer> https://datatracker.ietf.org/meeting/81/materials.html#wg-DTNRG
[13:17:36] <Will> They should be. We will check.
[13:18:53] <Will> we are working on getting the slide up. we thought they were up, but apparently need to reload
[13:23:06] <Will> Looks like erasure coding such as Digital Fountain or reliable multi-cast and then proactive fragmentation the an extension block in bundle protocol
[13:25:40] <Will> Slides are online now.
[13:33:15] <Will> discussion at mic about use of metadata block vs extension block.
[13:34:34] <Will> BBN started with metadata block and moved to extension block but could move back. It just seemed like an extra, unnecessary layer of blocks using extension block (my interpretation of what was said)
[13:38:24] Simon Perreault joins the room
[13:41:15] <Will> Appears to possibly be used as a proxy / gateway to move large bundles through portions of a network.
[13:42:38] <Will> Currently implemented in DTN 2.7 in C
[13:44:21] <Simon Perreault> Will: but one bundle would need to be transformed into multiple bundles by the proxy. that part looks weird to me.
[13:44:37] <Simon Perreault> (if i understand correctly)
[13:45:10] gorryf joins the room
[13:45:24] <Will> Yes, I think the metadata/extension block info is to help that.
[13:45:45] <Will> Simon, do you have the slides up?
[13:45:55] <Will> Check out the presentation
[13:46:27] Andrew Sullivan leaves the room
[13:47:17] Andrew Sullivan joins the room
[13:47:50] gorryf leaves the room
[13:47:52] <Will> question regarding looking at FRAME and NORM and reliable multicast
[13:53:16] gorryf joins the room
[13:53:32] <Simon Perreault> i'm questioning the "session" UUID thing that "binds" multiple bundles together
[13:54:55] <Will> Would you like me to bring this up to the mic or is that detail for off-line
[13:55:09] <Simon Perreault> nah, it's not a core issue
[13:55:17] <Simon Perreault> I'll bring it up on the mailing list
[13:55:18] <Will> I suggest off-line.
[13:55:26] <Will> good idea
[13:56:18] <Will> On to PRoPHET
[13:57:47] <Will> Learned that they focused to much on Delivery Predictability which is unrelated to protocol state machine
[14:01:50] <Will> New draft includes fragmentation support and did not include source eid
[14:03:11] <Will> Discussion on parking lot problem
[14:03:46] <Will> simultaneous multiple encounters aka parking lot problem
[14:03:56] nestor.tiglao leaves the room
[14:06:27] <Will> concentrating on reliable TCP connections - better fit for type of connections encounter for systems that would use prophet
[14:06:41] sftcd joins the room
[14:08:32] <Will> wifi flaky connections will look like multiple encounters when it is really only one encounter.
[14:09:48] <Will> more encounters increases Delivery Predictability so this causes problems in the routing predictability indicators
[14:10:57] Andrew Sullivan leaves the room
[14:19:59] <Will> Is prophet v2 better than v1? Simulations have indicated yes. Paper at CHANTS 2011. see slides
[14:22:04] samo.grasic joins the room
[14:22:06] Simon Perreault leaves the room
[14:25:28] sftcd leaves the room
[14:26:32] <Will> question at mic about parking lot problem. How worried. Responce - not to worried
[14:27:32] <mayer> Question: are there ideas of reducing replication by e.g. additionally integrating replication counters (like in Spray&Wait, Encounter Based Routing), or using a threshold on delivery probabilities? (Christoph Mayer)
[14:28:20] <Will> Suggest functioning over unrealible protocol. Then use multicast-type at convergence layer and all parties see what is going on. IMHO, sort of a manet similar issue.
[14:29:07] <Will> Other thought is to be able to know something about the actual physical links and pass that around.
[14:29:18] <Will> would help flaky-link problem
[14:29:56] <mayer> Comment to current discussion: RAPID keeps history of link performance and uses this in future
[14:30:39] <Will> Bob Cole - US Army doing large scale parking lot problem tests.
[14:32:03] <Will> Done with Prophet. Please read and comment on current draft which is ready for last call
[14:32:48] velt joins the room
[14:32:51] <Will> Now up: Marc on Bundle Protocol framework
[14:38:13] mayer leaves the room
[14:38:15] simon.perreault joins the room
[14:46:19] gorryf leaves the room
[14:50:15] <Will> Lars
[14:50:53] <Will> port numbers and service names , just call service names - is that possible?
[14:51:37] <Will> Use service registry may be possible.
[14:52:30] Andrew Sullivan joins the room
[14:53:22] <Will> Marc: leads to work on syntax - how do we know how to find the "service" part?
[15:05:05] <Will> Discussions on BPQ extension block
[15:06:36] <Will> matching rule discussion - see draf-farrell-ni in decade WG on Tuesday
[15:08:43] <Will> Mic: in extension block - I am searching for this string/thing? Response is sent to source eid
[15:09:14] avri leaves the room: Replaced by new connection
[15:09:15] avri joins the room
[15:15:27] hkruse joins the room
[15:18:09] <Will> Last presentation: Information-Centric Networking
[15:18:18] simon.perreault leaves the room
[15:26:37] <Will> Meeting will be held Tuesday, July 26th, 13:00 – 15:00 
• Room 303AB 
• Inten(on: 
– See whether there is interest in forming an IRTF 
RG on Informa(on‐Centric Networking (ICN) 
[15:28:11] <Will> Tuesday,July 26th, 13:00 – 15:00
• Room 303AB 
• Inten(on: 
– See whether there is interest in forming anIRTFRGonInforma(on‐CentricNetworking(ICN) 
[15:28:41] <Will> IRTF wide open area meeting
[15:29:17] <Will> Tuesday, July 26th, 13:00 – 15:00 
• Room 303AB 
• Inten(on: 
– See whether there is interest in forming an IRTF 
RG on Informa(on‐Centric Networking (ICN) 
[15:29:25] <Will> test
[15:30:10] Will leaves the room
[15:30:16] Will joins the room
[15:30:30] <Will> I am back
[15:31:04] <Will> cut and past from slides on information-centric network
[15:31:06] <Will> Tuesday, July 26th, 13:00 – 15:00 
• Room 303AB 
• Inten(on: 
– See whether there is interest in forming an IRTF 
RG on Informa(on‐Centric Networking (ICN) 
[15:31:13] <Will> test again
[15:31:28] <Will> cut and paste did not work
[15:31:41] <hkruse> I see it
[15:31:50] <hkruse> Just not formatted really well
[15:31:52] Andrew Sullivan leaves the room
[15:31:53] <Will> see slides for Tuesday meeting location time is 13:00
[15:32:11] <Will> Yes. cut from pdf
[15:32:21] <hkruse> All the info is there
[15:32:23] <Will> learning this netbook keyboard
[15:32:32] <Will> meeting adjourned
[15:32:39] <hkruse> ok
[15:32:51] <Will> over and out
[15:32:53] Will leaves the room
[15:32:57] hkruse leaves the room
[15:33:46] velt leaves the room
[15:46:22] elwynd leaves the room
[15:47:24] avri leaves the room
[15:58:23] samo.grasic leaves the room
[16:00:16] brentonwalker leaves the room
[16:57:32] samo.grasic joins the room
[17:28:52] samo.grasic leaves the room
[18:24:30] Andrew Sullivan joins the room
[18:29:54] Andrew Sullivan leaves the room
[18:29:56] Andrew Sullivan joins the room
[18:30:24] Andrew Sullivan leaves the room
[19:14:05] Andrew Sullivan joins the room
[19:28:24] Andrew Sullivan leaves the room
[19:28:26] Andrew Sullivan joins the room
[19:35:02] Andrew Sullivan leaves the room