In The End, Will It Be PCI Express, USB, And Ethernet?

PCI Express is absorbing functionality from other common interfaces like SAS and SATA, reducing the number of interfaces that systems will require. Ethernet has already hit that point, pushing out other networking alternatives. USB is effectively doing the same for low-speed peripherals. USB 3.0 is pushing the bandwidth envelope, but it may be challenged by PCI Express wherever high speed …

SDN, OpenFlow, and next-generation data center networks

Software Defined Networks (SDN) and OpenFlow have been proposed as the basis of the next generation of networks. In this article, I would like to focus on one specific type of network – the next-generation, cloud-inspired data center network – and cover: (a) some of the key requirements for those data center networks; (b) how SDN/OpenFlow address those requirements; and …

Controlling network flow with the OpenFlow protocol

A new twist on network flow processing gives network administrators programmatic control of network flows to strategically place traffic where resources exist. Here’s why you may be building the open-source specification OpenFlow (or similar protocol) into routers, switches, and other devices to realize the benefits of Software-Defined Networks. The idea of Software-Defined Networking–and OpenFlow specifically–has garnered significant interest, curiosity, as …