To start Qnet, load the lsm-qnet.so shared object into the network manager.
The io-pkt* manager is a process that assumes the central role to load a number of shared objects. It provides the framework for the entire protocol stack and lets data pass between modules. In the case of native networking, the shared objects are lsm-qnet.so and networking drivers, devn-*.so and devnp-*.so. The shared objects are arranged in a hierarchy, with the end user on the top, and hardware on the bottom.
You can start the io-pkt* from the command line, telling it which drivers and protocols to load:
$ io-pkt-v4 -del900 -p qnet &
This causes io-pkt-v4 to load the devn-el900.so Ethernet driver and the Qnet protocol stack.
Or, you can use the mount and umount` commands to start and stop modules dynamically, like this:
$ io-pkt-v6-hc & $ mount -Tio-pkt devn-el900.so $ mount -Tio-pkt lsm-qnet.so
To unload the driver, type:
umount /dev/io-net/en0