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

4-June-07 P1901_PRO_016_r0
The data field contains the block number and/or data to transmit.
12.2.5.3.1 RRQ packet
0xAA
0xAA
0x03
0x00
0x13
0x9D
0x07
0x06
Dest MAC Src MAC Payload
Submission page 368 UPA-OPERA
TPID
TCI
Length
Figure 156 PTTP RRQ packet format
The destination address is the Multicast address 0x01139D000000 defined by the CCP protocol. When a node
receives such a packet, it must not be forwarded.
12.2.5.3.2 DATA packet
TPID
0xAA
0xAA
0x03
0x00
0x13
0x9D
0x07
0x07
Length
Dest MAC Src MAC Payload
TCI
Block Number
Data (0-1024 bytes)
Figure 157 PTTP DATA packet format
The destination and source address are the client and server MAC addresses respectively.
The Type1 field indicates this is a data packet. Next to this field, it is the data block number, and finally the data
block. The data field can be empty if the DATA packet is the last packet of the transfer.
12.2.5.3.3 DATA ACK packet