|By Bill Koss||
|April 21, 2014 06:00 AM EDT||
[This post is penned by Plexxi executive Bill Koss]
Two months ago I read an interesting blog post by Greg Ferro titled “Cheap Network Equipment Makes a Better Data Centre.” At Plexxi, I am the person who leads our sales team and I found the post interesting because I think there is a lot of disinformation in the market regarding the cost of procuring networks. Every week it seems I read a report or article on networking margins, port prices, market share, SDN, bare metal, leaf/spine, open source, linux, etc. When I speak to customers, there is an equal amount of confusion and in my view it perpetuates the current state in favor of the incumbents.
As a level set, when a potential client asks: what does Plexxi do? I tell them we build ethernet switches based on merchant silicon; we use Linux for an operating system, we use a photonic inter-connect fabric and distributed controller architecture. Our switches speak ethernet and IP, just like all ethernet switches, but it is the controller and photonic fabric that make our switches different. Together we believe that our technology results in a system that has transformative scale, performance, and efficiency advantages compared to legacy network architectures.
Recently we provided a proposal to a potential client regarding their network. As with Greg Ferro’s project, we provided an all in proposal that included cables, software, transceivers, switches, controllers, accessories, support costs and the fabric interconnect ports. There were two design options based around the size of the interconnect fabric, which most people refer to as the spine or core. I have condensed some of the details for reading ease, but I think this is a transparent description of the proposal regarding (i) the costs of building a Plexxi network and (ii) how it is different with the choice of two different fabric options, much like the blog post from Greg. Here is the summary table of the network design options:
|# 10G Client Ports||$ Per 10G Client Port||Fabric Size||
|Total 1 Year Cost|
In a Plexxi network, we use a controller architecture. Our controller computes efficient photonic forwarding topologies. This type of architecture, often referred to as SDN, provides a number of benefits, but it begins with a fluid pool of capacity within the fabric. The capacity in our photonic fabric can be allocated, reassigned and reconfigured. Without providing a long technical description of how our controller operates, an important concept to understand is we use 100% of the fabric and we do not implement spanning tree or block links. We compute forwarding topologies using multi-flow commodity, graph theory math; that is one of the jobs of Plexxi Control. A Plexxi fabric can be used inside your data center and the use of a photonic fabric means the fabric can be extended to campus and metro area designs. Here are a few points regarding our controller and fabric architecture:
- The photonic fabric is managed as pool of capacity
- Applications and workloads that are important can be assigned fabric capacity
- Capacities can change, evolve and forwarding topologies can be diurnal
- Controller based fabrics are deterministic as opposed to distributed state fabrics that take time to compute state, which may or may not result in an optimal design.
- Controller based fabrics can centrally compute optimal paths and provide fast convergence by pre-computing failure recovery states
The use of a controller with a photonic fabric provides a number of scaling benefits. The most obvious benefit is the linear cost curves in terms of price per client port. The following chart shows the 10G client port cost in scaling from 400 to 3400 ports.
The linearity of the Plexxi architecture in terms of client port cost can also be seen in terms of power and cooling. In a Plexxi architecture, the performance of the network benefits when the controller tries to keep packets in the photonic portion of the network as much as possible, thus limiting silicon switch hops and incurring latency. Uniformed latency and uniformed power consumption per client power are benefits of the Plexxi architecture:
A question we often get is whether a Plexxi network requires a greenfield or can it be deployed in a brownfield. The answer is there are no greenfields. Plexxi networks have been deployed in a number of variations. We have had clients deploy Plexxi in the spine, while leaving the legacy ToR and server connections in place. We have had clients deploy Plexxi as a replacement strategy for the their leaf/spine network, thus collapsing a two tier or three tier network to a single tier. We have had clients deploy Plexxi between data centers providing a single hop, load-balanced fabric between data centers. Traditionally, most Plexxi customers connect our switches to legacy routers and switches using 10G or 40G ports. We have a handful of customers who have extended the Plexxi fabric via DWDM connections to legacy optical transport platforms.
Another question I have been asked is whether or not our photonic fabric is proprietary. The way to think about our photonic fabric is to compare it to the fabric modules found in traditional core and spine switches. What we have done at Plexxi is to take the backplane capacity in spine/core switches found in multi-tier networks and distribute that capacity into each switch. When you add port capacity, you add fabric capacity. Five years ago this type of network design was not possible, only with the advent of the modern controller architecture coupled with low cost, multi-path photonic interconnects has it become possible. The design objective of a Plexxi network is to manage the network as a resource pool that can be correlated with the needs of compute and storage. We believe that networking is entering the era of plenty and that networks built with rich amounts of path diversity are building blocks of the new networks. We believe this because that has been direction of compute and storage. Compute and storage have entered the era of plenty and it is time for the network to enter the era of plenty as well. The era of plenty for networking will be built using a controller architecture because a controller architecture combined with photonics, merchant silicon and Linux, is the best means to deliver the following benefits:
- Simplicity: Single tier photonic network
- High Utilization: Load balanced L2 fabric
- Controller Architecture: Unified view of network fabric
- Uniformed Low Latency: Direct connectivity
- Faster Failure Handling: Pre-computed forward topologies that converge rapidly to target optimum
- Elastic Network Capacity: Large-scale computation and path optimization through Controller enables fluidity of network capacity
- Reduced Cabling: Simplified network element deployment and insertion
[Today's fun fact: The average American/Canadian drinks about 600 sodas a year. Of course, the American version is 72 ounces compared to Canada's 12 ounces.]
SYS-CON Events announced today that Creative Business Solutions will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Creative Business Solutions is the top stocking authorized HP Renew Distributor in the U.S. Based out of Long Island, NY, Creative Business Solutions offers a one-stop shop for a diverse range of products including Proliant, Blade and Industry Standard Servers, Networking, Server Options and Care Packs. As a trusted supplier, CBS guarantees quality controlled stock levels thanks to an Auto...
Apr. 27, 2015 09:15 AM EDT Reads: 4,363
SOA Software has changed its name to Akana. With roots in Web Services and SOA Governance, Akana has established itself as a leader in API Management and is expanding into cloud integration as an alternative to the traditional heavyweight enterprise service bus (ESB). The company recently announced that it achieved more than 90% year-over-year growth. As Akana, the company now addresses the evolution and diversification of SOA, unifying security, management, and DevOps across SOA, APIs, microservices, and more.
Apr. 27, 2015 09:15 AM EDT Reads: 2,437
SYS-CON Events announced today that kintone has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. kintone promotes cloud-based workgroup productivity, transparency and profitability with a seamless collaboration space, build your own business application (BYOA) platform, and workflow automation system.
Apr. 27, 2015 09:00 AM EDT Reads: 1,724
Can call centers hang up the phones for good? Intuitive Solutions did. WebRTC enabled this contact center provider to eliminate antiquated telephony and desktop phone infrastructure with a pure web-based solution, allowing them to expand beyond brick-and-mortar confines to a home-based agent model. It also ensured scalability and better service for customers, including MUY! Companies, one of the country's largest franchise restaurant companies with 232 Pizza Hut locations. This is one example of WebRTC adoption today, but the potential is limitless when powered by IoT.
Apr. 27, 2015 09:00 AM EDT Reads: 5,294
SYS-CON Events announced today that Optimal Design, an Internet of Things solution provider, will exhibit at SYS-CON's Internet of @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Optimal Design is an award winning product development firm offering industrial design and engineering services to the consumer, medical, and defense markets.
Apr. 27, 2015 09:00 AM EDT Reads: 1,691
Chuck Piluso will present a study of cloud adoption trends and the power and flexibility of IBM Power and Pureflex cloud solutions. Speaker Bio: Prior to Data Storage Corporation (DSC), Mr. Piluso founded North American Telecommunication Corporation, a facilities-based Competitive Local Exchange Carrier licensed by the Public Service Commission in 10 states, serving as the company's chairman and president from 1997 to 2000. Between 1990 and 1997, Mr. Piluso served as chairman & founder of International Telecommunications Corporation, a facilities-based international carrier licensed by t...
Apr. 27, 2015 09:00 AM EDT
There are lots of challenges in IoT around secure, scalable and business friendly infrastructure for enterprises. For large corporations, IoT implementations are one of the top priorities of the decade. All industries are seeing a competitive need to sustain by investing in IoT initiatives. The value addition comes from improved customer service, innovative product and additional revenue streams. The data from these IP-connected devices can be leveraged for a variety of business applications as well as responsive action controls. The various architectural building blocks of an IoT ...
Apr. 27, 2015 09:00 AM EDT
GENBAND introduced its Real Time Communications (RTC) Client for Lync* to seamlessly combine real-time communications with Lync Instant Messaging (IM) and Presence. “We’re shaking up the economics of delivering Unified Communications (UC) and offering a compelling way to integrate previously bespoke communications technologies,” said Carl Baptiste, GENBAND’s Senior Vice President, Enterprise Solutions. “We’re offering enterprises the best of both worlds by combining our own high availability voice, video and collaboration with Lync’s IM and Presence; creating a single, web centric, client. O...
Apr. 27, 2015 09:00 AM EDT Reads: 1,732
The list of ‘new paradigm’ technologies that now surrounds us appears to be at an all time high. From cloud computing and Big Data analytics to Bring Your Own Device (BYOD) and the Internet of Things (IoT), today we have to deal with what the industry likes to call ‘paradigm shifts’ at every level of IT. This is disruption; of course, we understand that – change is almost always disruptive.
Apr. 27, 2015 09:00 AM EDT Reads: 1,530
After making a doctor’s appointment via your mobile device, you receive a calendar invite. The day of your appointment, you get a reminder with the doctor’s location and contact information. As you enter the doctor’s exam room, the medical team is equipped with the latest tablet containing your medical history – he or she makes real time updates to your medical file. At the end of your visit, you receive an electronic prescription to your preferred pharmacy and can schedule your next appointment.
Apr. 27, 2015 09:00 AM EDT Reads: 1,443
@ThingsExpo has been named the Top 5 Most Influential M2M Brand by Onalytica in the ‘Machine to Machine: Top 100 Influencers and Brands.' Onalytica analyzed the online debate on M2M by looking at over 85,000 tweets to provide the most influential individuals and brands that drive the discussion. According to Onalytica the "analysis showed a very engaged community with a lot of interactive tweets. The M2M discussion seems to be more fragmented and driven by some of the major brands present in the M2M space. This really allows some room for influential individuals to create more high value inter...
Apr. 27, 2015 08:45 AM EDT Reads: 5,132
SYS-CON Events announced today that Cisco, the worldwide leader in IT that transforms how people connect, communicate and collaborate, has been named “Gold Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Cisco makes amazing things happen by connecting the unconnected. Cisco has shaped the future of the Internet by becoming the worldwide leader in transforming how people connect, communicate and collaborate. Cisco and our partners are building the platform for the Internet of Everything by connecting the...
Apr. 27, 2015 08:30 AM EDT Reads: 5,840
SYS-CON Events announced today that Liaison Technologies, a leading provider of data management and integration cloud services and solutions, has been named "Silver Sponsor" of SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York, NY. Liaison Technologies is a recognized market leader in providing cloud-enabled data integration and data management solutions to break down complex information barriers, enabling enterprises to make smarter decisions, faster.
Apr. 27, 2015 08:15 AM EDT Reads: 3,902
Participants will reach the final if their IoT solution is liked. A community vote will determine the best solutions submitted in each country, after which an expert jury will select the national winners and the best international IoT solution. Each country's best solution can win a national marketing campaign worth up to €30,000 and become a partner in Deutsche Telekom's participating markets. The winning international solution can become partner of Deutsche Telekom Group across all eight countries and reach out to a potential of 10,8 million business customers. Deutsche Telekom Group has a...
Apr. 27, 2015 08:00 AM EDT Reads: 1,252
Recent technology advances in miniaturization has positioned the wearables as the pinnacle of technology convergence with the human body. We inquire if wearables are mere standard miniaturized devices extended with the connectivity and present our views on considerations like design, applications, performance, efficiency, interoperability, usage scenarios, human device interaction and consequent trade-offs enabling wearables to impart optimal value.
Apr. 27, 2015 08:00 AM EDT Reads: 1,174
WebRTC Summit has announced today that Peter Dunkley has been named summit chair of WebRTC Summit 2015 New York. The 4th International WebRTC Summit will take place on June 9-11, 2015, at the Javits Center in Manhattan, New York. @ThingsExpo anticipates 90% of WebRTC companies & developers will monetize their products & services through IoT by 2016. Peter Dunkley is Technical Director at Acision. He graduated from The University of Edinburgh in 2000 with a BSc (Hons) in Computer Science. After graduation Peter worked on a PSTN switch developing signalling stacks for SS7, ISDN and simi...
Apr. 27, 2015 08:00 AM EDT Reads: 2,194
In this session we look at creating interactive communications via the web by adding messaging, file transfer, and group communication (group chat and audio/video conferencing) into the web experience. We will also discuss potential applications of this technology in areas including B2B, B2C, P2P, and gaming. Peter is Technical Director at Acision. He graduated from The University of Edinburgh in 2000 with a BSc (Hons) in Computer Science. After graduation Peter worked on a PSTN switch developing signalling stacks for SS7, ISDN and similar protocols and creating advanced routing and serv...
Apr. 27, 2015 08:00 AM EDT Reads: 1,232
SYS-CON Events announced today that Windstream, a leading provider of advanced network and cloud communications, has been named “Silver Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York, NY. Windstream (Nasdaq: WIN), a FORTUNE 500 and S&P 500 company, is a leading provider of advanced network communications, including cloud computing and managed services, to businesses nationwide. The company also offers broadband, phone and digital TV services to consumers primarily in rural areas.
Apr. 27, 2015 08:00 AM EDT Reads: 5,219
SYS-CON Events announced today that SoftLayer, an IBM company, has been named “Gold Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place June 9-11, 2015 at the Javits Center in New York City, NY, and the 17th International Cloud Expo®, which will take place November 3–5, 2015 at the Santa Clara Convention Center in Santa Clara, CA. SoftLayer operates a global cloud infrastructure platform built for Internet scale. With a global footprint of data centers and network points of presence, SoftLayer provides infrastructure as a service to leading-edge customers ranging from ...
Apr. 27, 2015 08:00 AM EDT Reads: 2,817
The WebRTC Summit 2015 New York, to be held June 9-11, 2015, at the Javits Center in New York, NY, announces that its Call for Papers is open. Topics include all aspects of improving IT delivery by eliminating waste through automated business models leveraging cloud technologies. WebRTC Summit is co-located with 16th International Cloud Expo, @ThingsExpo, Big Data Expo, and DevOps Summit.
Apr. 27, 2015 07:45 AM EDT Reads: 2,468