Named Data Networking Link Protocol

NDNLP is a link protocol for delivering CCNx messages over a local one-hop link.

NDNLP provides the following two features:

Fragmentation and Reassembly
Acknowledgement and Retransmission

ndnld is an implementation of NDNLP.

Read NDN Technical Report NDN-0006 for more details.

SYSTEM REQUIREMENTS

CCNx

ndnld has been tested with CCNx 0.6.2.

Linux

ndnld has been tested with Ubuntu 12.04.

CUnit is required to run unit tests.

FreeBSD

ndnld has been tested with FreeBSD 9.

Unit tests do not compile on FreeBSD.
UDP lower-layer with IPv6 addresses is always available.
UDP lower-layer with IPv4 addresses is available when ipv6_ipv4mapping="YES" is specified in /etc/rc.conf.
Ethernet lower-layer is not supported due to lack of AF_PACKET.

Mac OS

ndnld compiles on Mac OS X 10.6.8, but its functionality is not fully tested.

USAGE

Install

make
sudo make install

On FreeBSD if you plan to use UDP lower-layer with IPv4 addresses, add ipv6_ipv4mapping="YES" to /etc/rc.conf, and reboot the machine.

Start

ccndstart
ndnld

The program will daemonize itself.

Stop

killall ndnld

Uninstall

sudo make uninstall

CONFIGURATION

ndnldc is a command-line utility to configure ndnld.

ndnldc should be called after starting ndnld. Configuration does not persist after ndnld is restarted.

Create UDP Connection

Commands to create a UDP connection between r1 (192.0.2.1) and r2 (192.0.2.2):

ndn@r1:~$ ndnldc -c -p udp -h 192.0.2.2
ndn@r2:~$ ndnldc -c -p udp -h 192.0.2.1

FaceID will be echoed back.

Create Ethernet Connection

Commands to create a Ethernet connection between r1 (eth1, 08:00:27:01:01:01) and r2 (eth2, 08:00:27:01:01:02):

ndn@r1:~$ ndnldc -c -p ether -h 08:00:27:01:01:02 -i eth1
ndn@r2:~$ ndnldc -c -p ether -h 08:00:27:01:01:01 -i eth2