Medium Access Control (MAC) and Physical Layer (PHY) - CISE

4-June-07 P1901_PRO_016_r0
information received to determine that there are isolated clusters, and that it can perform spatial reuse by the use of
the non-returnable token (see 4.4.2.9)
Cluster Discovery Protocol message format
The CDP Message is encapsulated using the CCP with Type0 0x0a and Type1 0x01 (Figure 102). The CDP packet
will be sent through unicast port, as it is specifically addressed to the master node. The destination MAC will be the
master node destination MAC.
TPID
0xAA
0xAA
0x03
0x00
0x13
0x9D
0x0A
0x01
Length
Dest MAC Src MAC Payload
TCI
Figure 121 Cluster discovery packet format
Cluster Discovery Protocol Data
The information can be fragmented in several packets (identified by a sub-table number) if the entries do not fit in
one.
The CDP data fields are:
Bytes CDP data fields Length
0 Sub-table number 1 bytes
1 Number of sub-tables 1 bytes
2 Number of entries of the sub-table 1 byte
3 – 8 Sender MAC address 6 byte
9 Entry size (in bytes) 1 byte
10 - 521 Entries 512 bytes
Submission page 250 UPA-OPERA