Lippis Report 223: An Open Approach to Network Automation

March 3rd, 2015

nick_podium2Modern day networking is labor intensive. Configuration, monitoring and change management are manual processes for the most part. In fact, at the last Open Networking User Group (ONUG) this past Fall at Credit Suisse, most IT business leaders said that one network engineer supports approximately 120 networking devices such as a router, switch, etc. Compare this to 20,000 servers that a single engineer manages at a hyper scale firm and you can see that networking needs automation. Manual networks are not helping IT business leaders who are feeling pressure from business unit managers demanding self-service IT delivery on par with cloud providers such as Amazon, Azure, etc., but without the implied loss of security, visibility and control. Case in point: at ONUG in Boston hosted by Fidelity Investments, large financial service firms showed what happens when they offer business unit managers on-demand virtual machine (VM) creation and deletion; the trend lines showed exponential growth, demand and consumption!

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Lippis Report 222: Cisco Preps ACI for General Availability: What to Expect

August 25th, 2014

nick_podium2One of the biggest networking events this August is the general availability of Cisco’s ACI or Application Centric Infrastructure. Cisco has been shipping its Nexus 9000 series of switches in what is called standalone mode, which is an ultra-fast data center Ethernet switch, since November 2013. Nexus 9000 orders tripled from 180 in Q3 to 580 at the end of Cisco’s fiscal fourth quarter. Cisco promised as part of the Nexus 9000 release that these switches can be deployed in what it calls “ACI fabric mode.” ACI fabric mode promises to reduce operational cost, increase agility and link applications to network infrastructure like never before. The manifestation of fabric mode is ACI, and it’s now entering general availability. In this Lippis Report Research Note we take a look at ACI from a point of view of what it can do for Data Center architects today.

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Lippis Report 221: HP Invests Heavy in Unified Wired and Wireless Network Infrastructure

July 28th, 2014

nick_podium2 Ever since the introduction of the first iPhone in 2007, mobile computing has never been the same. In just six short years, the smartphone industry is selling nearly 500 million devices a quarter, according to Gartner, and there will be 50 billion devices, including laptops, smartphones, iPads, tablets, non-IT devices, etc., connected to wireless networks by 2020. For the past several years, BYOD or Bring Your Own Device projects have been the largest budget spends for IT departments worldwide, thanks to each user connecting up to three devices on average with Wi-Fi being the preferred wireless network service. As mobility connectivity has been on the rise, wired connections to enterprise networks are still growing, albeit at a slower pace than prior to 2010. From a network design, operations and management perspective, these networks evolved at different paces and with separate management and operational models. The networking industry has been working to unify or converge wired and wireless management to ease operations, increase security and user experience. In particular, increasing complexity or operational cost is driving the need for unified wired and wireless, in addition to the increased use of Software as a Service (SaaS) or cloud computing as a more flexible IT service delivery model. In this Lippis Report Research Note, we review HP’s approach to unified wired and wireless networking.

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Lippis Report 219: What Is Happening to Open Networking?

March 18th, 2014

nick_podium2It was so simple; the separation of network hardware from software through a protocol called OpenFlow would open up the networking industry by injecting innovation into a vertically integrated industry. Specialized network hardware, called routers and switches, would give way to low cost white box alternatives, built in Asia, that were centrally controlled by software running on x86 commodity hardware. The networking industry would split into three parts: those that sold data forwarding gear, controller software and network applications. Well, that was 2010, and the reality is that this model of Open Networking has not materialized in the enterprise market—perhaps in a few operator and hyperscale networks, but not the real markets: the enterprise and public sector environments. Open Networking has taken on a life of its own. Overlays or virtualized networking are coming into their own; white box solutions without OpenFlow are being piloted in the enterprise and deployed in select cloud providers and operator networks; Linux is being considered as a network operating system to enable automation and normalize management tools across compute, storage and networking. The wide area, and in particular, branch office networking is about to undergo a fundamental change, thanks to new open networking solutions entering the market that promise radically lower cost, centralized policy provisioning control and service enablement. Hardware appliances are under attack in both branch office and data centers as vendors start to offer network service virtualization or NSV. Open networking security, or the lack thereof, is now coming into focus as is the killer SDN application: IP storage. In this Lippis Report Research Note, we provide a snapshot of the fast-pace changes occurring in Open Networking.
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Lippis Report 218: ONUG vs. OpenStack, Open Compute and ONF

February 24th, 2014

A quick look at the board of directors of the Open Network User Group will make it obvious that ONUG is driven by some of the world’s biggest IT business leaders of networking technology. Leading financial, insurance, retail and logistics companies are all active members of ONUG. That alone sets it apart from the many other organizations with “open” in their name. In keeping with their goals, all ONUG events are intentionally kept to a manageable size so that members can meet their primary objective – which is to network other ONUG members.

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Lippis Report 217: It’s Network Service Virtualization in the Enterprise rather than Network Function Virtualization

February 13th, 2014

NickDuring the October 2013 Open Networking User Group (ONUG) meeting, the ONUG community prioritized nine use cases based upon budget development and propensity to buy. The top three use cases were open branch office networking, open overlay or network virtualization, and integrating layer 4-7 network services to eliminate appliances into overlay networks. All ONUG use cases can be found here. Of particular note is the integrating L4-7 network services ONUG use case as its main focus is the elimination of hardware appliance, be it in the branch office and data center. A knee-jerk reaction to this use case was to define it as Network Function Virtualization or NFV. But these discussions ended with the realization that NFV will not work in the enterprise market. In this Lippis Report Research Note, I explain why and introduce the term “Network Service Virtualization.”

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Lippis Report 216: Arista’s 7500E Breaks Multiple Test Records In Most Comprehensive Review of its Spine Switch

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January 27th, 2014

NickBack in August of 2013 we reviewed the Arista 7500E in Lippis Report Research Note 212. Nearly six months later the Arista 7500E is the most widely deployed spine switch of this new class of 288 40GbE modular switches. Over the past few months the Lippis Report with Ixia tested the 7500E for layer 2 and 3 unicast plus multicast performance, congestion management, demanding cloud traffic performance, power consumption, the ability for its VOQ buffers to be adjustable, if its 64-Way ECMP hash works as advertised and performance tested its 100GbE Line Card. If you’re building a cloud network, then you need to read this report first. In this Lippis Report Research Note, we deliver the most comprehensive test and review of Arista’s 7500E modular data center spine switch.

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Lippis Report 215: Cisco’s Nexus 9000 Re-defines Software-Defined Networking

November 6th, 2013

nicklippis.jpgIt was back in February of 2013, during the Open Networking User Group, or ONUG, hosted by Fidelity Investments in Boston, that one of its board members told me “We could wake up in the morning and Cisco will have an open networking solution that changes the industry.” Well, November 6th 2013 was that morning. Cisco acquired Insieme Networks and with it, addressed networking’s biggest complaints that have been voiced far and wide; that is, data center networking is too over-subscribed, ridged and not flexible to support on-demand workload creation and movement. These and other complaints are perhaps best articulated in an October 2010 blog by James Hamilton, VP and Distinguished Engineer on the Amazon Web Services Team, titled Data Center Networks Are In My Way. Since then Insieme’s engineering team has redefined networking, as we know it, manifested in a product portfolio that will not only change networking but the IT industry. There are multiple value propositions embedded in the new Cisco product line, which I’ll cover here in the Lippis Report over the next few quarters. But for this Lippis Report Research Note, we review the new Nexus 9000 series of data center switches, which Cisco promises is the most port dense and power efficient plus fastest packet forwarder and programmable data center modular switch in the industry. The Nexus 9000 series represents a familiar starting point on the journey toward a new era in software-defined networking.

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Lippis Report 214: Open Networking Disrupts the Storage Market

October 21st, 2013

nicklippis.jpgThe dialog over open networking often goes something like this: The networking market is fundamentally changing. The established networking vendors will realize lost market share and revenue if they don’t open up. Network switching will become commoditized and offshored to Asia. While these may be true statements, one unknown inter-related trend is evolving, and that’s open networking will disrupt the storage market. The Storage Area Networking, or SAN market, and in particular Fiber Channel, is costly and difficult to configure. Ethernet networking has evolved to the point where early adapters, cloud providers and hyperscale firms are starting to consider transporting storage traffic over the same Ethernet network as user traffic. While 10GbE and 40GbE switching possess the attributes to support storage, open networking’s automation and programmability are the final pieces to the architectural puzzle to enable fully converged data and storage networking. Over the past year, VCs have poured 10s of millions into new IP storage firms to take advantage of this shift in the storage market, including Ceph by Inktank, GlusterFS, Sheepdog, SwiftStack, Scality, Hedvig, Riak CS and others. In this Lippis Report Research Note, we explain the new open networking and storage market that’s emerging.

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Lippis Report 213: We Are Entering Software-Defined Networking 2.0

September 23rd, 2013

nicklippis.jpgIt’s been a few years now that the industry has been working toward delivering a Software-Defined Networking market. The model that kicked off SDN was a Stanford definition that split the data and control plane, connecting them via a new standard protocol called OpenFlow. As OpenFlow was being standardized, the open networking movement entered other parts of the networking market, such as virtualized networking, visualization, programmable networking and white box networking. A broader new SDN 2.0 model is emerging that includes a wide range of use cases and technologies that promise to fundamentally change not just the networking industry, but the IT value chain and, in particular, the storage market. At ONUG, SDN 2.0 will be front and center as ONUG Board of Directors including  Bank of America, CitiGroup, Gap Inc., J.P. Morgan Chase, UBS, and other IT business thought leaders discuss how SDN 2.0 is impacting their IT infrastructure. In this Lippis Report Research Note, we provide a rough sketch of SDN 2.0. To get the full version, you need to come to ONUG!

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IBM Empowers Applications to Call Upon Network Services Via PureSystems

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January 28th, 2013

Dr.Casimer DeCasatis

This is the forth of a five part podcast series on IBM’s Open Data Center Interoperable Network or ODIN program and DOVE or Distributed Overlay Virtual Ethernet. I talk with Dr. Casimer DeCasatis, IBM Distinguished Engineer and System Networking’s Chief Technical Officer for strategic alliances about IBM’s Software Defined-Networking or SDN stack and how applications request network services with IBM’s linkage between its Patterns and SDN product set.

Duration 12 minutes and 17 seconds:

Lippis Intro/Analysis @ : 00:10 sec

Question 1 @ 2:27 What are the key architectural components that enable applications to call upon network resource within PureSystems.

Question 2 @ 4:45: What is Patterns and its main function?

Question 3 @ 7:21: How do clients build DOVE networks and DOVE networks build Virtual System pattern?

Question 4 @ 8:58: What network infrastructure needs to be put in place before virtual system patterns can be created and what’s the main business benefit gained?

IBM Scales Virtual Networks Via Distributed Overlay Virtual Ethernet

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January 14th, 2013

This is the second of a five part series on IBM’s Open Data Center Interoperable Network or program and its DOVE or Distributed Overlay Virtual Ethernet.  I talk with Renato; IBM Fellow and System Networking Chief Technical Officer about IBM’s approach to virtual network overlays called DOVE.

Duration 16 minutes and 20 seconds:


Lippis Intro/Analysis @ : 00:10 sec

Question 1 @ 2:22: Renato would you like to add anything to my virtual network overlay discussion in the intro that’s unique to IBM?

Question 2 @ 4:46: What is DOVE, a switch, software, etc?

Question 3 @ 7:42: How are IBM’s virtual network overlays created and managed?

Question 4 @ 9:59 How are virtual networks transported over the physical L2/3 network?  Does IBM support hybrid mode?

Question 5 @ 11:59: There are multi-tenant clouds, hybrid clouds and large-scale private clouds or data centers that would benefit from virtual network overlays.  Which use cases does IBM see as virtual network overlays offering the most value today?

Question 6 @ 14:29: How do IT business leaders start to implement IBM’s virtual network overlay?

Register to attend the Open Networking User Group hosted by Fidelity and the Lippis Report on Feb 13th 2013 in Boston, MA

IBM Sets Direction With Open Data Center Interoperable Network Architecture

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January 7th, 2013

Dr.Casimer DeCusatis

This is the first of a five part podcast series on IBM’s Open Data Center Interoperable Network or ODIN program and its DOVE or Distributed Overlay Virtual Ethernet initiative.  In this podcast I talk with Dr. Casimer DeCusatis IBM Distinguished Engineer and IBM System Networking’s chief technical officer for strategic alliances about IBM’s expanded approach to data center networking and the gains anticipated by IBM customers.

Duration 10 minutes and 05 seconds:


Lippis Intro/Analysis @ : 00:10 sec

Question 1 @ 2:16: Let’s start with a discussion about Open Data Center Interoperable Network; what is it and what problem(s) does it seek to solve?

Question 2 @ 3:37: What benefits will IT leaders gain as they start an ODIN journey.

Question 3 @ 5:13: Is ODIN an architecture and an approach to networking or a way for IBM to communicate to the market a set of product/service investments it’s making?

Question 4 @ 7:13: How does ODIN prepare a data center or cloud for elastic compute, storage and network provisioning of resource pools that can be rapidly partitioned into desired configuration?

Register to attend the Open Networking User Group hosted by Fidelity and the Lippis Report on Feb 13th 2013 in Boston, MA

The Future of Software-Defined Networking

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August 27th, 2012

Rakesh Saha, Director of Product Management for Advanced Technologies at IBM System Networking and Samrat Ganguly, Chief Network Architect for NEC’s ProgrammableFlow join me to help us make sense of the fast paced evolution of Software-Defined Networking and predict its future.

Duration: 12 minutes and 26 seconds

Lippis Intro/Analysis @ : 00:10 sec

Question 1 @ 2:19 sec: Rakesh, There are a few approaches to SDN including overlay virtual networks, OpenFlow control of physical and virtual switches plus a hybrid. How do you see these implementations evolving over time?

Question 2 @ 5:10 sec: Samrat, There are a range of protocols to use for the overlay of virtual networks to tunnel through physical L2/3 networks, such as GRE, VXLAN , NVGRE, etc. How will this space evolve?

Question 3 @ 6:34 sec: Rakesh, There’s discussion in the industry about how SDN can be used to configure a converged LAN/SAN fabric. Can you talk to this?

Question 4 @ 7:58 sec: Samrat, there are multiple approaches for SDN controllers, be it in a hypervisor, an appliance, part of a cloud stack, etc. How do you see the role of the controller evolving over time?

Question 5 @ 9:17 sec: Rakesh, How do you see SDN evolving and how does programmable networking fit in?

Question 6 @ 10:52 sec: Samrat, same question. How do you see SDN evolving and how does programmable networking fit in?