The MAC management PDUs that are exchanged over the primary
management connectioniii can trigger, or are triggered by, primitives that are
exchanged over either the C-SAP or the M-SAP, depending on the particular management
or control operation. The messages that are exchanged over the secondary
management connection can trigger or are triggered by primitives that are
exchanged over the M-SAP. This interface is a set of SAP between an IEEE 802.16
entity and NCMS as shown in Figure below.
It consists of two parts: the M-SAP is
used for delay-tolerant management-plane primitives; and the C-SAP is used for
delay-sensitive control-plane primitives that support handovers, security
context management, radio resource management, and low power operations such as
idle mode and paging functions.
