QoS policies

Qnet supports transmission over multiple networks and provides the following policies for specifying how Qnet should select a network interface for transmission:

loadbalance (the default)
Qnet is free to use all available network links, and shares transmission equally among them.
Qnet uses one specified link, ignoring all other networks (unless the preferred one fails).
Qnet uses one — and only one — link, ignoring all others, even if the exclusive link fails.