The role this PDSN plays within a controller-member
type of cluster:
- 'notApply' indicates this PDSN does not play
any cluster role. PDSN has this role if the
cCdmaClusterType is not controller-member.
- 'controller' indicates this PDSN is the controller
of this cluster.
- 'member' indicates this PDSN is a member of
this cluster.
- 'collocated' indicates this PDSN is both controller and
a member of this cluster.