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

4-June-07 P1901_PRO_016_r0
A node that decides to be a FMN of a flow shall select a session ID for this flow and communicate this session ID to
all the nodes that are part of the flow path using a CAC_Rsp message.
CAC_Req packet contains the list of traffic from one node requesting resources.
Figure 122 CAC Req Message
Information present in this packet (and in the reply) will be needed by any nodes present between the node requester
and FMN.
Bytes CAC_Req data fields Length
0 Entry Length in bytes 1 byte
1 Num entries 1 byte
2-
Num_entries*Entry_Length+2
CAC_Req Entry Field 19 bytes
Num_entries*Entry_Length+3 Num hop 1 byte
Num_entries*Entry_Length+4
- 9
Table 41 CAC_Req Data Fields
Mac i 6 bytes
Mac i + 1 6 bytes
NumHop : Initially set to 0, each node taking part of the path between the requester node and the FMN should
increment this number and place its Mac in the locations reserved below. If NumHop reaches 255, no further
increment is performed.
Submission page 253 UPA-OPERA