METHOD, DEVICE AND SYSTEM FOR LOSSLESS BANDWIDTH ADJUSTMENT Russian patent published in 2015 - IPC H04L12/70 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to a lossless bandwidth adjustment method. The method includes the following: a downstream node of an ODUflex path receives a request message from an upstream node of the ODUflex path, where the request message is used for requesting lossless adjustment of a bandwidth of the ODUflex path; the downstream node searches according to the tunnel identifier to obtain bandwidth information before adjustment of the ODUflex path, compares the bandwidth information before adjustment with the bandwidth information after adjustment, determines the number of additional time slots that need to be adjusted for a link between the downstream node and an adjacent upstream node, and selects an additional time slot that needs to be adjusted; indicates, through a label, an additional slot after adjustment of the adjacent upstream node or the selected additional time slot that needs to be adjusted, and sends an additional time slot adjustment command to a data plane.

EFFECT: eliminating configuration errors arising when adjusting bandwidth manually.

22 cl, 12 dwg