发明名称 |
Communication system, method of processing message in communication system, and station-side unit and subscriber-side unit |
摘要 |
There is provided a communication system (1) such as an ATM-PON including a station-side unit (2) having a point-to-multipoint message generating unit (2A) and a group designation message generating unit (2B) and subscriber-side units (4-1 to 4-N: N is a natural number) each having a point-to-multipoint message processing unit (4A) and a state control unit (4B). The station-side unit (2) sends a group designating message to some of the subscriber-side units (4-i:i=1 to N), thereby to designate some of the plurality of the subscriber-side units as a component constituting a group of units which are to receive a point-to-multipoint message, and only the subscriber-side units (4-i) controls to bring the reception and the processing on the point-to-multipoint message to a valid status. With this arrangement, only specified components constituting a group of units can be made to receive the point-to-multipoint message. Thus, it becomes possible to avoid unexpected erroneous operation which can be caused if information specific to a vendor of some of the subscriber-side units (4-i) is sent to all of the subscriber-side units. Moreover, it becomes possible to provide information to the specified components constituting a group of units within a very short period of time. |
申请公布号 |
US6856623(B2) |
申请公布日期 |
2005.02.15 |
申请号 |
US20010034928 |
申请日期 |
2001.12.28 |
申请人 |
FUJITSU LIMITED |
发明人 |
HAMASAKI MOTOSHI;MURAKAWA HIROSHI;EDASAWA MASANOBU;KURAYA HISAYOSHI |
分类号 |
H04L12/56;H04Q11/00;H04Q11/04;(IPC1-7):H04L12/28 |
主分类号 |
H04L12/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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