Re: [dtn-users] LTP Convergence Layer - Help needed!
Nik Ansell <nikansell00@gmail.com> Thu, 03 December 2015 18:08 UTC
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Date: Thu, 03 Dec 2015 22:08:02 +0400
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From: Nik Ansell <nikansell00@gmail.com>
To: "Zoller, David A. (MSFC-EO50)[HOSC SERVICES CONTRACT]" <david.a.zoller@nasa.gov>
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Subject: Re: [dtn-users] LTP Convergence Layer - Help needed!
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Hi David, Thank you for your kind reply, you are 100% correct. The very helpful "Interface list" command told me that it was indeed listening on port 1113. So I updated my config files to use port 1113 but it still didn't work. I did however manage to get a 2 node setup working using port 1113, as per my previous update. Do you know of any else I can do to troubleshoot the 3node setup? Kind Regards, Nik On Thu, Dec 3, 2015 at 10:04 PM, Zoller, David A. (MSFC-EO50)[HOSC SERVICES CONTRACT] <david.a.zoller@nasa.gov> wrote: > Hi Nik, > > interface add ltp0 ltp local_addr=$shorthostname is probably listening on > port 1113 by default and your LTP links are transmitting to port 4556. > > I recommend changing the LTP links to use the IANA assigned port 1113. > (The UDP interface is listening on 4556 by default). > > Hope that gets you going, > > DZ > > > > > > *From:* dtn-users [mailto:dtn-users-bounces@irtf.org] *On Behalf Of *Nik > Ansell > *Sent:* Thursday, December 03, 2015 11:23 AM > *To:* dtn-users@irtf.org > *Subject:* [dtn-users] LTP Convergence Layer - Help needed! > > > > Hi, > > > > I have successfully setup a 3 node UDPCL and TCPCL topology and am able to > send bundles OK. > > > > Next I installed LTPLib and rebuilt DTN2, ensuring that ./configure found > the location of LTPlib OK. > > > > I have updates the config files to use ltp, but for some reason no bundles > seem to be sent or queued! > > > > If anyone could shed any light on a possible problem I will be forever in > their debt, as bundles just seem to disappear! > > > > My testing so far has been starting dtnd on all 3 nodes, then running the > dtnsend command twice to send 2 test bundles from node 1 to node 3. > > "dtnsend -s dtn://tx.dtn/a -d dtn://rx.dtn/g -t m -p "hello"" > > > > I run dtnrecv on node 3: > > "dtnrecv dtn://rx.dtn/g -q -o F#####.bin" > > > > "bundle list" on nodes 1,2&3" returns zero bundles, so none are in the > queue. > > "bundle stats" on node 1 returns: > > Bundle Statistics: 0 pending -- 0 custody -- -- bpq -- bpq -- 2 received > -- 0 delivered -- 0 generated -- 2 transmitted -- 0 expired -- 0 duplicate > -- 2 deleted -- 0 injected > > "link dump link_ltp1" on node 1 returns: > > Current link: > > Link link_ltp1: > > clayer: ltp > > type: ALWAYSON > > state: OPEN > > deleted: false > > nexthop: mx:4556 > > remote eid: dtn:none > > mtu: 1400 > > min_retry_interval: 5 > > max_retry_interval: 600 > > idle_close_time: 0 > > potential_downtime: 30 > > prevhop_hdr: false > > reincarnated: true > > used in fwdlog: true > > local_addr: 255.255.255.255 local_port: 4556 > > remote_addr: 10.0.0.2 remote_port: 4556 > > mtu: 1400 > > Red/Green balance: all red > > ION mode: false > > > > Config files: > > > > Node1 > > interface add udp0 udp > > interface add ltp0 ltp local_addr=$shorthostname > > > > # Create link to MX > > link add link_ltp1 mx:4556 ALWAYSON ltp mtu=1400 local_port=4556 > remote_port=4556 remote_addr=10.0.0.2 > > > > # Add route to RX via MX > > route add dtn://rx.dtn/* link_ltp1 > > > > Node2: > > interface add udp0 udp > > interface add ltp0 ltp local_addr=$shorthostname > > > > # Create link to TX > > link add link_ltp2 tx:4556 ALWAYSON ltp local_port=4556 remote_port=4556 > mtu=1400 remote_addr=10.0.0.1 > > > > # Create link to RX > > link add link_ltp3 rx:4556 ALWAYSON ltp local_port=4556 remote_port=4556 > mtu=140 remote_addr=10.0.0.3 > > > > # Add route to TX > > route add dtn://tx.dtn/* link_ltp2 > > > > # Add route to RX > > route add dtn://rx.dtn/* link_ltp3 > > > > Node3: > > interface add udp0 udp > > interface add ltp0 ltp local_addr=$shorthostname > > > > # Create link to MK > > link add link_ltp1 mx:4556 ALWAYSON ltp local_port=4556 remote_port=4556 > remote_addr=10.0.0.2 > > > > # Add route to TX via MX > > route add dtn://tx.dtn/* link_ltp1 > > > > Kind Regards, > Nik >
- [dtn-users] LTP Convergence Layer - Help needed! Nik Ansell
- Re: [dtn-users] LTP Convergence Layer - Help need… Zoller, David A. (MSFC-EO50)[HOSC SERVICES CONTRACT]
- Re: [dtn-users] LTP Convergence Layer - Help need… Nik Ansell
- Re: [dtn-users] LTP Convergence Layer - Help need… Nik Ansell
- Re: [dtn-users] LTP Convergence Layer - Help need… Zoller, David A. (MSFC-EO50)[HOSC SERVICES CONTRACT]
- Re: [dtn-users] LTP Convergence Layer - Help need… Nik Ansell