Check out our top articles of May 2016, covering the SDxCentral universe of SDN, NFV, and related topics. Rankings are based on unique visitors aggregated during the last four weeks. Enjoy.

10. Brocade Braces for a Disappointing Q2, Citing IP Headwinds

The macro storm is far from over. Read more.

9. Cisco Revises Its Network Administrator Certification

Cisco's CCNA certification is being affected in six key areas. Read more.

8. It’s Surprising Who’s Using NFV MANO Code From Cloudify

Cloudify also spawns a new open source group: Aria. Read more.

7. What’s the Difference Between Open-O & OSM?

One goes beyond the ETSI NFV MANO diagram. Read more.

6. Margaret Chiosi Retires From AT&T

She has been active in NFV open source groups. Read more.

5. Juniper Preps an SDN Professional Services Engine

Contrail is the “secret weapon.” Read more.

4. Cisco Claims It’s Fending Off White Boxes

Arista isn't the only one enticing the cloud titans. Read more.

3. VMware NSX & Cisco ACI Aren’t Mutually Exclusive

It depends on the ratio of physical to virtual in the network. Read more.

2. Will Brocade’s Acquisition of Ruckus Be Its Savior?

Ruckus’s Selina Lo says OpenG will be big. Read more.

1. SD-WAN Startup Viptela Raises $75M

Cashing in on big names like Verizon and Singtel. Read more.