METHOD AND APPARATUS FOR DYNAMICALLY ALLOCATING UPSTREAM BANDWIDTH IN PASSIVE OPTICAL NETWORKS

摘要

One embodiment of the present invention provides a system that facilitates dynamic allocation of upstream bandwidth in a passive optical network. During operation, the system receives a request from a remote node for a grant to transmit upstream data from a logical entity associated with the remote node to a central node, wherein the size of the data to be transmitted does not exceed a transmission threshold assigned to that logical entity, and wherein a logical entity may not request more than what is allowed by the corresponding transmission threshold. If the request satisfies a bandwidth allocation policy, the system issues a grant to the remote node to transmit upstream data. In response to the grant, the system receives upstream data from the remote node and transmits data stored in the receiver buffer to the out-going uplink according to a set of SLAs.