GigE Vision
®
Specification
version 1.2
December 23
rd
, 2009 Page 5 of 293
10.6 Impact of Multiple Network Interfaces ........................................................................................... 77
10.7 Traversing Firewalls or Network Address Translation Devices ..................................................... 77
10.8 Unconditional Streaming ................................................................................................................ 78
11 Message Channel ................................................................................................................................ 80
11.1 Message Channel Registers ............................................................................................................ 80
11.2 Opening the Message Channel ........................................................................................................ 80
11.3 Closing the Message Channel ......................................................................................................... 81
11.4 Asynchronous Events...................................................................................................................... 81
11.5 Multicasting .................................................................................................................................... 81
11.6 Traversing Firewalls or Network Address Translation Device ...................................................... 82
12 Device with Multiple Network Interfaces ........................................................................................... 83
12.1 Control Channel .............................................................................................................................. 83
12.2 Stream Channels ............................................................................................................................. 84
12.3 Message Channel ............................................................................................................................ 84
13 GVCP Headers .................................................................................................................................... 85
13.1 Command Header ........................................................................................................................... 85
13.2 Acknowledge Header ...................................................................................................................... 86
13.3 Byte Sequencing ............................................................................................................................. 87
14 Control Channel Dictionary ................................................................................................................ 91
14.1 DISCOVERY .................................................................................................................................. 91
14.1.1 DISCOVERY_CMD............................................................................................................... 91
14.1.2 DISCOVERY_ACK ............................................................................................................... 92
14.2 FORCEIP ........................................................................................................................................ 94
14.2.1 FORCEIP_CMD ..................................................................................................................... 94
14.2.2 FORCEIP_ACK ...................................................................................................................... 96
14.3 READREG ...................................................................................................................................... 96
14.3.1 READREG_CMD................................................................................................................... 97
14.3.2 READREG_ACK ................................................................................................................... 98
14.4 WRITEREG .................................................................................................................................... 99
14.4.1 WRITEREG_CMD ............................................................................................................... 100
14.4.2 WRITEREG_ACK ............................................................................................................... 100
14.5 READMEM .................................................................................................................................. 101
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