The initial definition of a NODE. This must come before any other configuration related to this node.

The 'nodename' is used in link definitions to specify which nodes the link joins. The nodename is must be a single word, with no spaces.

There is one special node name, 'DEFAULT', which allows for the setting of defaults. All nodes that are defined after this one in the configuration file will use the parameters of this node as a starting point. For this reason, it is best to define the DEFAULT node at the top of the configuration file, if you intend to use it.