A textual description of the group. This value
should include the full name and version
identification of the group's hardware type and
indicate how the group is differentiated from
other types of groups in the repeater. Plug-in
Module, Rev A' or 'Barney Rubble 10BASE-T 4-port
SIMM socket Version 2.1' are examples of valid
group descriptions.
It is mandatory that this only contain printable
ASCII characters.