Here are the top stories SDxCentral wrangled this week related to SDN, NFV, cloud, and virtualization infrastructure:

Broadcom Buys Brocade Communications for $5.9B — Broadcom plans to retain Brocade’s Fibre Channel SAN business and drop its IP networking business.

OpenSwitch Moves Away From HPE, Embracing Dell & SnapRoute — Dell has contributed a base operating system, while SnapRoute is providing routing and switching stacks.

Facebook Aims to Unbundle Packet-Optical Networks —Facebook’s end goal is to make fast Internet available to people worldwide.

Here are the week’s strays and stragglers we roped for you:

Symantec announced that Thomas Seifert, executive vice president and chief financial officer plans to step down as CFO at the end of the month. Former Blue Coat CFO Nick Noviello will take over starting December 1.

The Optical Internetworking Forum (OIF) made an agreement with the University of New Hampshire InterOperability Lab (UNH-IOL) to provide certification for Optical Control Plane User Network Interfaces (UNI) based on industry standards.

Tech Mahindra launched its virtual network function (VNF) Exchange, along with a number of software-defined networks (SDN) and network functions virtualization (NFV) products.

Apollo Global Management completed its $4.3 billion acquisition of Rackspace.

VMware further expanded the company's ecosystem of VMware Ready for NFV certified systems. This includes systems from A10 Networks, Fortinet, Riverbed, UANGEL, Viptela and ZTE.

Coriant plans to collaborate with Facebook and the Telecom Infra Project (TIP) on its newly announced Voyager system.

The OPNFV Project announced four new member organizations including China Telecom, Qualcomm Technologies, Samsung Electronics, and the Fraunhofer Institute for Open Communication Systems.

Hewlett Packard Enterprise has completed its acquisition of SGI, a company that handles compute, data analytics, and data management, for $7.75 per share in cash.

Ciena unveiled WaveLogic Ai, a programmable modem that delivers network performance at minimum cost.

Ixia released the availability of IxVerify, a software specifically architected to work in an emulation-based verification flow.

Netrounds said its active Virtual Test Agents (vTAs) have been validated as a virtual network function (VNF) by the Hewlett Packard Enterprise's OpenNFV Partner Program.

Radware introduced its Operator Toolbox software to automate application delivery and security solution management.

Here are the other stories SDxCentral covered this week: