Methods and apparatus for dynamic bandwidth management using routing signals in a network implementing direct peerings. A system includes a resource collection, an endpoint device connected to a private link of a network path to a client network, and a bandwidth manager. The bandwidth manager receives configuration settings of the client, comprising a baseline transmission rate of traffic. The bandwidth manager determines whether a difference between a measured transmission rate of traffic over one or more network paths linking the resource collection and the client network, and a peak transmission capacity of the one or more network paths, exceeds a threshold value. In response to a determination that the difference exceeds the threshold value, the bandwidth manager initiates a transmission of a routing signal to the client network indicative of an available transmission rate that differs from the baseline transmission rate.