Just to clarify the confusion.

The parameter “-i <interface>” is a short-cut for a TCP Convergence Layer entry bound on that interface. It just adds an entry to the existing ones within the configuration.

Kind regards,

Johannes Morgenroth

Von: Ibr-dtn [mailto:ibr-dtn-bounces@ibr.cs.tu-bs.de] Im Auftrag von Nik Ansell
Gesendet: Montag, 18. Januar 2016 15:11
An: Stephan Rottmann <rottmann@ibr.cs.tu-bs.de>
Cc: ibr-dtn@ibr.cs.tu-bs.de
Betreff: Re: [ibr-dtn] UDP Convergence Layer Ignored

Yes, this fixed it.

The -i <interface> dtnd startup option was conflicting with the interface definition in the conf file.

Starting dtnd without the -i option worked fine.

Kind Regards,
Nik

On Mon, Jan 18, 2016 at 4:02 PM, Nik Ansell <nikansell00@gmail.com> wrote:

Hi Stephan,

I have just tried again on a brand new installation and observed something strange, hopefully I have found a fix to the problem.

I tried to troubleshoot in stages, this is what I did:

1. Start dtnd with default conf file - Started OK with no convergence layer

2. Add custom conf file (below conf1), but do not specify the correct interface name, also do not start dtnd with -i option - Started OK with UDP Convergence layer (Datagram ConvergenceLayer (UDP) added on eth0:4556)

3. Add custom conf file (below conf2) with correct interface name and use -i option - Fails: (TCP ConvergenceLayer added on eno16777736:4556)

4. Revert back to step 2 - Started OK with UDP Convergence layer (Datagram ConvergenceLayer (UDP) added on eth0:4556)

5. Add custom conf file (below conf2) with correct interface name and _do_not_ use -i dtnd startup option - Works: (Datagram ConvergenceLayer (UDP) added on eno16777736:4556)

I think perhaps the net_eth_interface option in the conf file and the -i dtnd startup option may be conflicting with each other. It appears to start OK using only the net_eth_interface option in the conf file.

When I am logged on to my test bed in a few hours I will try some data transfers and report back.

Kind Regards,

Nik

Conf1:

local_uri = dtn://rx

net_eth_type = dgram:udp

#net_internet = eth0

net_eth_interface = eth0

net_eth_port = 4556

net_interfaces = eth

# Create a route to tx

static1_uri = dtn://tx

static1_port = 4556

static1_address = 10.0.0.1

static1_proto = dgram:udp

static1_immediately = yes # connect immediately to this node

#static1_global = no # this node is only reachable with internet access

Conf2:

local_uri = dtn://rx

net_eth_type = dgram:udp

#net_internet = eno16777736

net_eth_interface = eno16777736

net_eth_port = 4556

net_interfaces = eth

# Create a route to tx

static1_uri = dtn://tx

static1_port = 4556

static1_address = 10.0.0.1

static1_proto = dgram:udp

static1_immediately = yes # connect immediately to this node

#static1_global = no # this node is only reachable with internet access

routing = default

stats_traffic = yes

api_interface = lo

**dtnd startup line and output (UDP starts OK, but not bound to a working nic)

/home/alarm/downloads/ibr-dtn/install/sbin/dtnd -c /home/alarm/downloads/ibr-dtn/source/ibrdtn-repo/ibrdtn/daemon/etc/rx.conf

Mon Jan 18 15:33:05 2016 INFO NativeDaemon: IBR-DTN daemon 1.0.1 (build a5f9012)

Mon Jan 18 15:33:05 2016 INFO Configuration: Configuration: /home/alarm/downloads/ibr-dtn/source/ibrdtn-repo/ibrdtn/daemon/etc/rx.conf

Mon Jan 18 15:33:05 2016 INFO BundleCore: Local node name: dtn://rx

Mon Jan 18 15:33:05 2016 INFO BundleCore: Forwarding of bundles enabled.

Mon Jan 18 15:33:05 2016 INFO BundleCore: Non-singleton bundles are accepted.

Mon Jan 18 15:33:05 2016 INFO NativeDaemon: using bundle storage in memory-only mode

Mon Jan 18 15:33:05 2016 INFO NativeDaemon: API initialized using tcp socket: lo:4550

Mon Jan 18 15:33:05 2016 INFO NativeDaemon: Datagram ConvergenceLayer (UDP) added on eth0:4556

Mon Jan 18 15:33:05 2016 INFO DiscoveryAgent: listen to [ff02::142]:4551

Mon Jan 18 15:33:05 2016 INFO DiscoveryAgent: listen to [224.0.0.142]:4551

Mon Jan 18 15:33:05 2016 INFO DiscoveryAgent: add interface eth0

Mon Jan 18 15:33:05 2016 INFO NativeDaemon: Using default routing extensions

** dtnd startup line and output (Always uses TCP Convergence layer)

/home/alarm/downloads/ibr-dtn/install/sbin/dtnd -c /home/alarm/downloads/ibr-dtn/source/ibrdtn-repo/ibrdtn/daemon/etc/rx.conf -i eno16777736

Mon Jan 18 15:37:33 2016 INFO NativeDaemon: IBR-DTN daemon 1.0.1 (build a5f9012)

Mon Jan 18 15:37:33 2016 INFO Configuration: Configuration: /home/alarm/downloads/ibr-dtn/source/ibrdtn-repo/ibrdtn/daemon/etc/rx.conf

Mon Jan 18 15:37:33 2016 INFO BundleCore: Local node name: dtn://rx

Mon Jan 18 15:37:33 2016 INFO BundleCore: Forwarding of bundles enabled.

Mon Jan 18 15:37:33 2016 INFO BundleCore: Non-singleton bundles are accepted.

Mon Jan 18 15:37:33 2016 INFO NativeDaemon: using bundle storage in memory-only mode

Mon Jan 18 15:37:33 2016 INFO NativeDaemon: API initialized using tcp socket: lo:4550

Mon Jan 18 15:37:33 2016 INFO NativeDaemon: TCP ConvergenceLayer added on eno16777736:4556

Mon Jan 18 15:37:33 2016 INFO DiscoveryAgent: listen to [ff02::142]:4551

Mon Jan 18 15:37:33 2016 INFO DiscoveryAgent: listen to [224.0.0.142]:4551

Mon Jan 18 15:37:33 2016 INFO DiscoveryAgent: add interface eno16777736

Mon Jan 18 15:37:33 2016 INFO NativeDaemon: Using default routing extensions

Kind Regards,
Nik

On Mon, Jan 18, 2016 at 2:18 PM, Nik Ansell <nikansell00@gmail.com> wrote:

Hi Stephan,

Thank you for your kind reply.

I originally tried both net_eth_type = udp & static1_proto = udp, but this didn't work.

I will try them both as dgram:udp later and respond back.

Kind Regards,
Nik

On Mon, Jan 18, 2016 at 2:00 PM, Stephan Rottmann <rottmann@ibr.cs.tu-bs.de> wrote:

Hi Nik,

> static1_uri = dtn://rx
> static1_port = 4556
> static1_address = 10.0.1.3
> static1_proto = udp
Have you tried dgram:udp at this point?


Best regards,
Stephan