Patent ID: 9054996
Filing Date: 2015-06-09
Classification: H04L

Abstract:
1. A method comprising: configuring, by a network device, initial policer limits for a plurality of over-subscribing ingress ports based on bandwidth limits for an over-subscribed egress port associated with the plurality of over-subscribing ingress ports; obtaining, by the network device, a first threshold watermark and a second threshold watermark for bandwidth usage of the over-subscribed egress port, identifying, by the network device, a queue, associated with the over-subscribed egress port, having a queue volume that is above the first threshold watermark or below the second threshold watermark over a particular quantity of consecutive samples; determining, by the network device, an oversubscription factor based on a ratio of a total bandwidth of the over-subscribed egress port and a total bandwidth of the plurality of over-subscribing ingress ports; determining, by the network device and when the queue volume is below the second threshold watermark over the particular quantity of consecutive samples, a rate of increase based on the oversubscription factor; and increasing, by the network device and when the queue volume is below the second threshold watermark over the particular quantity of consecutive samples, the initial policer limits to create increased policer limits based on the rate of increase, the initial policer limits being increased without having been previously decreased.