Routing Packet Traffic via Enhanced Access Control List for Network Congestion Avoidance

Filtering packet traffic and rules of permit/denial of data packets into network nodes are granted by facilitating Access Control Lists (ACL). This paper proposes a procedure of adding a link load threshold value to the access control list rules option, which acts on the basis of threshold value. The ultimate goal of this enhanced ACL is to avoid congestion in targeted subnetworks. The link load threshold value allows to decide that packet traffic is rerouted by the router to avoid congestion, or packet drop happens on the basis of packet priorities. The packet rerouting in case of high traffic loads, based on new packet filtering procedure for congestion avoidance, will result in the reduction of the overall packet drop ratio, and of over-subscription in congested subnetworks.