Patent ID: 8370517
Filing Date: 2013-02-05
Classification: G06F,H04L,Y02D

Abstract:
1. A method of operating a data processing network, the method comprising: performing an initial link layer operating frequency negotiation between a server and a switch to which the server is connected, wherein the initial link layer operating frequency negotiation establishes an initial total bandwidth capacity of a network link between the server and the switch at an initial operating frequency of the network link; following the initial link layer operating frequency negotiation, the server communicating network traffic with the switch over the network link and measuring an effective data rate of the network traffic communicated between the server and the switch over the network link; and responsive to determining by the measuring that the effective data rate is materially less than the initial total bandwidth capacity of the network link operating at the initial operating frequency, performing a subsequent link layer operating frequency negotiation to establish a decreased total bandwidth capacity of the network link at a decreased operating frequency of the network link, wherein the decreased operating frequency is closer to the measured effective data rate than the initial operating frequency.