4
SUC ID Server
(SIS)
When a SUC is also configured as a node ID
server (SIS) it enables all other controllers to
include/exclude nodes. The SIS
automatically becomes the Primary
Controller in the network when enabled.
There can only be one SIS in each individual
network. To avoid inconsistency, all node ID
allocations are maintained by the SIS.
Inclusion
Controller
The SIS enables other controllers to
include/exclude nodes to/from the network.
When SIS functionality is enabled the
controller also takes the role as the Primary
Controller because it has both latest
network topology and allocated node IDs. All
the other controllers are called Inclusion
Controllers because they can
include/exclude nodes to/from the network.
