| 摘要 |
A method of determining whether devices support a Multicast Channel Allocation Protocol (MCAP), and a multicast communication method using the same. The method includes an MCAP device broadcasting an MCAP advertise message to a plurality of devices on a network, the MCAP device, which broadcasts the MCAP advertise message, broadcasting an Internet Group Management Protocol (IGMP) query message to the plurality of devices on the network, and the MCAP device, which broadcasts the MCAP advertise message, determining whether each of the plurality of devices on the network supports the MCAP using channel numbers through which a plurality of IGMP report messages was transmitted from the plurality of devices on the network. By doing so, calculation loads caused by unnecessarily using broadcast channels, even when all devices included in a multicast group on the IEEE1394 network support the MCAP, can be prevented.
|
