CONGESTION CONTROL IN PACKET DATA NETWORKING

摘要

A network element controls congestion in a link of a packet data network. A congested link is identified and a throttle rate is determined for one or more of the traffic groups traversing the congested link. The central controller determines the throttle rates using a weight of the group and the current traffic rate of the group through the link. The throttle rates are sent to switches to throttle traffic for each affected group.

主权项

1. A non-transitory machine-readable storage medium having code stored therein, which when executed by a processor, cause the processor to perform operations comprising:
identifying a congested link from a plurality of links of a packet data network, the congested link having traffic from a plurality of packet traffic groups, wherein the plurality of packet traffic groups are prioritized using priority weights and each one of the plurality of packet traffic groups is assigned a priority weight; determining a throttle rate for a packet traffic group of the congested link based on the assigned priority weight of the group and a current traffic rate of the group; and sending the determined throttle rate to an ingress network element of the packet data network, the ingress network element receiving packets of the packet traffic group and wherein the ingress network element is to drop at least one packet from the received packets of the packet traffic group based on the determined throttle rate.