Enqueue policing systems and methods

摘要

Embodiments of the present disclosure generally pertain to systems and methods for policing packet networks. A system in accordance with an exemplary embodiment of the present disclosure includes an enqueue policer positioned within an intermediate node of a packet network prior to at least one egress queue. The enqueue policer utilizes information related to destination end-point capacity limits for a given customer in order to police packets based on such information at a relatively early point in the packet network. Thus, a packet that would have been dropped by an egress node due to capacity limits is dropped by the intermediate node thereby preventing the packet from needlessly consuming bandwidth of the network beyond the intermediate node.

主权项

1. A packet network, comprising:
an ingress node for a packet flow at a first edge of the packet network, wherein the packet flow enters the packet network through the ingress node; an egress node for the packet flow at a second edge of the packet network, wherein the packet flow exits the packet network through the egress node; and an intermediate node coupled between the ingress node and the egress node, the intermediate node having a first egress queue configured to store data packets of the packet flow, the intermediate node further having a policer coupled between the ingress node and the first egress queue, wherein the policer is configured to perform a comparison between a flow parameter for data packets of the packet flow passing through the policer and a threshold and to selectively drop data packets of the packet flow based on the comparison, and wherein the threshold is based on a performance parameter of the egress node and a performance parameter of the ingress node.