Patent ID: 7567585

Claim:
Transmission equipment transmitting traffic signals input from a plurality of ports on the Synchronous Optical Network/Synchronous Digital Hierarchy network paths of which bandwidths are arbitrarily set by a Virtual Concatenation and Link Capacity Adjustment Scheme, said transmission equipment comprising: an input traffic collector which collects and retains a traffic amount of traffic signals input in each input port for one period at preset periods; a bandwidth set processor which calculates a bandwidth for use in each input port from the traffic amount of traffic signals, retained in the input traffic collector, calculates a corresponding number of virtual concatenation member paths from a difference between the calculated bandwidth in use and a virtual concatenation path bandwidth having been allocated to the input port, and issues an addition command for adding or a deletion command for deleting the virtual concatenation member paths for the calculated number; a virtual concatenation controller which sets a virtual concatenation path bandwidth on the traffic input from the plurality of ports; and a link capacity adjustment scheme controller which controls the virtual concatenation to set and change the virtual concatenation path bandwidth, based on the addition command or the deletion command of the virtual concatenation member paths issued by the bandwidth set processor.