| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem in which: when a PON and a layer 2 switch are viewed as one system, band allocation by a dynamic band allocation (DBA) and band control by output time scheduling are carried out independently, and thereby an optimal band control reflecting the status of both PON and layer 2 switch is not performed. <P>SOLUTION: A communication device which achieves optimization of band control and power saving, and a band control method in the communication device are provided by coordinating a dynamic band allocation function (DBA) of a PON, and the band control function of a concentrator concentrating the PON, e.g. a layer 2 switch or a layer 3 switch. <P>COPYRIGHT: (C)2012,JPO&INPIT |
