Patent ID: 9143406
Filing Date: 2015-09-22
Classification: H04L

Abstract:
1. An apparatus for establishing communication according to a throughput requirement of a network, the network comprising a building aggregation system, a service edge, and a layer 2 switch between the building aggregation system and the service edge, the apparatus comprising: a processor configured to receive a bandwidth requirement from Customer Premise Equipment (CPE) coupled to the building aggregation system, calculate a data link-layer frame rate requirement for the layer 2 switch based on the bandwidth requirement and an Ethernet frame size, the Ethernet frame size selected from a predetermined list of different frame sizes, and calculating the data link-layer frame rate requirement including limiting the calculated data link-layer frame rate requirement by a line rate for transmission of data packets across a core network, calculate a data link-layer throughput requirement based on the calculated data link-layer frame rate requirement and the Ethernet frame size, and establish communication, over the network, between the service edge and the CPE according to the data link-layer throughput requirement; wherein the data link-layer frame rate requirement, L2_fps_req is calculated as follows: wherein BW represents the bandwidth requirement in Mbps, G, OH, LN, and P represent an inter-packet gap, overhead size, any applicable outer logical networking tag size, and packet size, respectively, in bytes; and wherein LR, TL, SEI, and EF represent line rate, tunnel label size, service emulation identifier size, and the Ethernet frame size, respectively, in bytes.