| 摘要 |
The purpose of the present invention is to provide a line relaying device in which TDM line data is not discarded even if the transmission speed varies. Provided is a line relaying device (1) which is connected to opposing devices in a ring using variable-transmission-speed device-connecting lines (11, 12) (hereafter referred to as lines (11, 12)) in which the transmission speed varies, wherein, when a reduction in the transmission speed of the line (11) preset as the TDM line transfer route is detected by a device-connecting line termination unit (109), a mapping request, to which information indicating the amount of TDM-line bandwidth overflowing from the line (11) and a destination indicating the final line relaying device have been added, is generated by the mapping request processing unit (108), and transmitted via the other line (12) to another device connected in a ring network in order to map the overflow amount of bandwidth added to the mapping request on each line sequentially from the other device to the line relaying device as the final transfer destination, thereby forming a TDM-line detour route. |
