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SDN blogs: Microsoft Lync SDN; future of open source networking

SDN bloggers discuss Microsoft SDN strategy with Lync, installing OpenDaylight's OpenStack on Fedora 20, and the future of open source in networking.

Integrating the OpenDaylight controller with OpenStack on Fedora 20

SDN expert Brent Salisbury took a look at the work behind integrating the OpenDaylight controller with OpenStack on Fedora 20 in a blog post on his NetworkStatic site. Salisbury said this is an Open vSwitch Database Management Protocol project within OpenDaylight and is intended for those looking to get their development environment underway. Salisbury provided a number of diagrams showing the integration approach, as well as a look at what the overall architecture should look like.

Check out Salisbury's step-by-step guide to integrating OpenDaylight's OpenStack with DevStack on Fedora 20.

Microsoft Lync and software-defined networking

Networking plays a big part in Microsoft Lync, so when SDN began to emerge, the folks at Lync took note. Jamie Stark, senior product marketing manager at Lync, took to the Lync team blog to explain how SDN can improve unified communications. Instead of having to configure each network element independently within a UC environment, Stark wrote that SDN provides a single policy-based method of operations, where the application tells the network what needs to happen.

With this in mind, Microsoft Lync created a Lync SDN application programming interface (API), which is free to anyone with a Lync server deployment. The API provides a REST-ful data stream of information about media flows as they get started. The data is then fed into an SDN controller to tell the network what needs to happen and where. Stark outlined three primary uses for the Lync SDN API, including diagnostics, automatically provisioning Quality of Service, and orchestration.

Read more about Microsoft's Lync development of its Lync SDN API.

How to do first-hop load balancing in IPv6

Ivan Pepelnjak addressed the need for first-hop load balancing and the differences between IPv4 and IPv6 on his IPspace blog. IPv4 is still important due to packet forwarding using the Gateway Load Balancing Protocol and the First Hop Redundancy Protocol; however, there are many networks that achieve packet forwarding without them.

Pepelnjak explains the need for first-hop load balancing, and then explains the move to IPv6. Although some IPv6 evangelists are quick to explain how IPv6 does everything right, there seems to be a gap between theory and practice, Pepelnjak wrote. In addition, "tricks" that can be done in IPv4 don't necessarily apply to IPv6, but Pepelnjak added that networks with layer-3 core should work the same as they did in IPv4.

Take a look at Pepelnjak's full post explaining first-hop load balancing in IPv6.  

Is open source the future of networking?

Plexxi's Mike Bushong looked at the history of open source and discussed whether it's the future of networking in a post on the company's blog. Open source has a significant role within computing, he wrote, and with the introduction of the OpenDaylight movement, open source is spreading into networking as well. However, Bushong questioned whether or not open source is a natural evolutionary path for all IT disciplines, or if there are certain aspects that make some areas better-suited for open source than others.

Check out Bushong's full reasoning behind open source and its future within networking.

What is the SDN security application HP Sentinel?

Greg Ferro spoke with HP Networking's Chief Technology Officer Dave Larson to learn more about the company's SDN security application HP Sentinel. On his Ethereal Mind blog, Ferro explained that HP Sentinel is an SDN security application that combines a reputation database, HP VAN controller, and OpenFlow to build a campus security platform.

Ferro provided readers with an overview of the Sentinel process, writing that users can mix existing security technology with OpenFlow/SDN to provide a useful campus security tool. He pointed out a number of Sentinel features, including how the tool is entirely standards based on OpenFlow, and how it will eventually work in Wi-Fi networks. Ferro wrapped up his post by writing that although HP Sentinel has a strong SDN story, it's being somewhat overshadowed by companies that are "making more noise," and he hopes HP can improve their marketing of Sentinel in the months ahead.

Take a look at Ferro's full post outlining HP Sentinel.

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