Tag Archive for Arista Networks

Whats Up With Cisco?

Whats Up With Cisco?What is up with Cisco? Their fiscal results for 2017 Q3 showed revenue of $11.9 billion, a 1% decline in revenue, compared to last year. This is the 6th consecutive down quarter. The networking goliath also issued downward guidance for 2017 Q4. They estimated a revenue declines of 4-6% year-over-year.

Cisco logoOn the earnings call, Cisco CEO Chuck Robbins blamed several factors for the lower guidance. He cited:

  • “A pretty significant stall right now” in the U.S. federal public sector.
  • Service provider revenues were down in Mexico.
  • United Kingdom business is being dampened by currency issues.
  • Middle East, there is “pressure… relative to oil prices.”

Cisco layoffs

Then there are the layoffs. Cisco buried the announcement in a footnote in the company’s SEC 8-K report that 1,100 more layoffs are coming. That is on top of the 5,500 announced in August 2016.

In May 2017, we extended the restructuring plan to include an additional 1,100 employees with $150 million of estimated additional pretax charges.

Cisco layoffs

According to SDXCentral, the Cisco CEO stressed several times on the earnings call, that the company is transitioning to more software and subscription-based business. He declared,

I am pleased with the progress we are making on the multi-year transformation of our business.

These weak financial results and the move to a subscription-based business have fed speculation about the future Cisco business model. TechTarget speculates that Cisco may go so far as to separate the Network Operating System (NOS) from the hardware. They contend the move would be a dramatic departure from Cisco’s traditional business model of bundling high-margin hardware with its NOS. The author believes that market trends will likely force the vendor to release an open NOS.

Open NOS

Cisco 3750 switchTechTarget cites reports from The Information that a hardware-independent NOS called Lindt is coming. Reportedly Lindt will run on a white box powered by merchant silicon. According to the article, a number of market trends are driving the move to a hardware-independent NOS.

The first market trend forcing Cisco’s hand is the company’s declining dominance of the Ethernet switch market. Since 2011, the company’s share has dropped from 75% to less than 60% last year, according to the financial research site Trefis. The decline is important to Cisco’s bottom line. Switches accounted for 40% of Cisco’s product sales in 2016, 30% of net revenues, and 20% of the company’s $162 billion valuation.

Infrastructure as a ServiceCisco’s weakening performance in switching is tied to the second market trend forcing Cisco to release a hardware-independent NOS. Its customers are turning to public cloud providers, Amazon (AMZN) Web Services, Microsoft (MSFT) Azure, and IBM (IBM) SoftLayer, for their IT infrastructure. The more enterprises subscribe to infrastructure as a service, the less networking gear they need in their data centers.

Cloud computing

The shift to cloud providers is found in the latest numbers from Synergy Research Group. Revenue from public cloud infrastructure services is growing at almost 50% a year. In the fourth quarter of last year, revenues topped $7 billion.

 cloud providers are building open networking hardware and softwareThe third market trend forcing Cisco to a hardware-independent NOS is enterprises that were Cisco’s largest customers are now competitors. Enterprises and cloud providers are building open networking hardware and software to replace inflexible proprietary systems that lock them in. Those companies include large financial institutions, like Bank of America, Goldman Sachs, and Fidelity Investments. As well as communication service providers, AT&T (T), Deutsche Telekom, and Verizon (VZ).

The technology shift is driving an enormous amount of spending on IT infrastructure. Worldwide spending on public and private cloud environments will increase 15% this year from 2016 to $42 billion, according to IDC. Meanwhile, spending in Cisco’s core market of traditional infrastructure for non-cloud data centers will fall by 5%.

White boxes

Arista NetworksWhile Cisco is ignoring the trend away from proprietary hardware, the article says Cisco’s rivals are embracing it. Juniper (JNPR) and Arista (ANET) have released versions of their NOS for white boxes favored by cloud providers and large enterprises. Both companies reported year-to-year revenue growth in switching last year. Even Cisco’s patent lawsuit against upstart Arista was set back by the courts.

Rohit Mehra, an analyst at IDC hypothesized that Cisco’s resistance to change is likely due to fear that giving customers other hardware options would accelerate declining sales in switching. “There would be potentially some risk of cannibalization in the enterprise space,” he added.

Cisco insists its customers are not interested in buying networking software that’s separate from the underlying switch. The Cisco spokesperson told TechTarget:

TCisco insists its customers are not interestedhe vast majority of our customers see tremendous value in the power and efficiency of Cisco’s integrated network platforms, and the tight integration of hardware and software will continue to be the basis of the networking solutions we offer our customers

TechTarget adds that Cisco doesn’t say the article is wrong. Instead, the company falls back on a corporate cliché for refusing to discuss a media report. “We don’t comment on rumor or speculation,” a Cisco spokesperson said.

The networking market is evolving away from the hardware that Cisco depends on for much of its valuation. Cisco will resist changing its market approach for as long as possible. But in the end, the company will have to become a part of the trend with an open NOS capable of running on whatever hardware the customer chooses.

Cisco’s own problems

Rather than change its model for selling networking gear, Cisco has spent billions of dollars on acquisitions over the last few years to create software and subscription-based businesses in security and analytics. But Cisco’s software push has yet to pay off with 5 conservative down quarters.

Finally, Cisco just recently patched a flaw in IOS software that affected more than 300 models of its switches. Despite issuing an advisory on March 17, Cisco did not release the patch for this vulnerability until May 8, 2017. The Cisco vulnerability was part of the Vault 7 WikiLeaks dump of alleged CIA hacking tools.

Alleged CIA hacking toolsThe vulnerability, rated a critical 9.8 out of 10 by the Common Vulnerability Scoring System, is in the Cluster Management Protocol, or CMP. could allow a remote, unauthenticated attacker to reload devices or execute code with elevated privileges. This vulnerability can be exploited during Telnet session negotiation over either IPv4 or IPv6.

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Ralph Bach has been in IT long enough to know better and has blogged from his Bach Seat about IT, careers, and anything else that catches his attention since 2005. You can follow him on LinkedInFacebook, and Twitter. Email the Bach Seat here.

Ethernet Marches On

Ethernet Marches OnIt has been a while since we talked about networking on the Bach Seat. So it is time to get back to my roots. Ethernet continues to dominate the world. The Institute of Electrical and Electronics Engineers (IEEE) 802.3 Ethernet Working Group, the group responsible for the Ethernet standard, recently ratified 4 new Ethernet-related standards. The committee approved IEEE 802.3bp, IEEE 802.3bq, IEEE 802.3br, and IEEE 802.3by.

IEEE 802.3br has implications for IoT and connected cars. This new standard addresses the needs of industrial control system manufacturers and the automotive market by specifying a pre-emption methodology for time-sensitive traffic. IEEE 802.3bp addresses how Ethernet operates in harsh environments found in automotive and industrial applications.

The 2 more interesting new standards to networkers are IEEE 802.3bq and IEEE 802.3by. These standards help define how 25 GB and 40 GB Ethernet will work and more importantly how products from multiple vendors should interoperate in the data center. For a summary of the rationale for the new standard here is the IEEE presentation  (PDF).

Data c enterIEEE 802.3bq, “Standard for Ethernet Amendment: Physical Layer and Management Parameters for 25 Gb/s and 40 Gb/s Operation, Types 25GBASE-T and 40GBASE-T“, opens the door to higher-speed 25 Gb/s and 40 Gb/s twisted pair solutions with auto-negotiation capabilities and Energy Efficient Ethernet (EEE) support for data center applications.

IEEE 802.3by, “Standard for Ethernet Amendment: Media Access Control Parameters, Physical Layers, and Management Parameters for 25 Gb/s Operation”, introduces cost-optimized 25 Gb/s PHY specifications for single-lane server and switch interconnects for data centers.

Siemon’s Standards Informant explains that 25GBASE-T will be backward-compatible with existing BASE T technology and both 25GBASE-T and 40GBASE-T are planned for operation over TIA category 8 cabling. The deployment opportunity for 25GBASE-T is aligned with 40GBASE-T and defined as the same 2-connector, 30-meter reach topology supporting data center edge connections (i.e., switch to server connections in row-based structured cabling or top of rack configurations).

The standard’s ratification comes shortly after the Telecommunications Industry Association (TIA) approved its standard specifications for Category 8 cabling, the twisted-pair type designed to support 25GBase-T and 40GBase-T.

Though 25 Gigabit Ethernet is only now becoming an official standard, Enterprise Networking Planet reports that multiple vendors already have technologies in the market. Among the early adopter of 25 GbE is Broadcom (AVGO) which announced back in 2014 that its StrataXGS Tomahawk silicon would support 25 GbE. In 2015, Arista (ANET) announced its lineup of 25 GbE switches. Cisco (CSCO) is also embedding 25 GbE support in some of its switches including the Nexus 9516 switch.

That is where 25-Gb/s Ethernet comes in. It uses the same LC fiber cables and the SFP28 transceiver modules are compatible with standard SFP+ modules. This means that data-center operators can upgrade from 10 GbE to 25 GbE using the existing installed optical cabling and get a 2.5X increase in performance.

The IEEE 25GbE standard seems to have come out of nowhere, (especially considering the L O N G D R A W N O U T 8 0 2 . 1 1 n process but the technology actually came into being as the natural single-lane version of the IEEE 802.3ba 100-Gb/s Ethernet standard. The 100-Gb/s Ethernet standard uses four separate 25-Gb/s lanes running in parallel, so defining a single lane makes it a straightforward and natural subset of the 100-Gb/s standard.

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IEthernetEEE P802.3by and P802.3bq were initially targeted for server connections in mega data centers like Amazon, Facebook, and Google. In the next 5 years, 25G will be the next mainstream server upgrade from 10G, even for smaller data centers. SMB data centers will be facing a connectivity crisis in the future as the pace of virtualization increases.

According to IDC, the typical virtualized server supported about 10 virtual machines (VMs) in 2014 and will support in excess of 12 VMs by 2017. In many organizations, the majority of production workloads are already virtualized and almost all new workloads are deployed on virtualized infrastructure, placing inexorable stress on server connectivity.
In order to accommodate this growth Twinax copper and short-reach MMF are included in the “by” standard, while 25GBASE-T (twisted pair) was added to the existing 40GBASE-T “bq” project making 25G possible in smaller data centers without having to re-wire the data center.
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Ralph Bach has been in IT long enough to know better and has blogged from his Bach Seat about IT, careers, and anything else that catches his attention since 2005. You can follow him on LinkedInFacebook, and Twitter. Email the Bach Seat here.

Facebook Challenges Cisco

Facebook Challenges CiscoJulie Bort at the BusinessInsider says Facebook is challenging the stagnate network giant Cisco (CSCO). Facebook’s (FBNajam Ahmad, leader of the OCP networking project announced a product that should have Cisco shaking in its boots. Mr. Ahmad told the New York Times, “The bigger strategy here is to get computer networking out of the black box, black operations part of the world.

Facebook logoFacebook introduced the new top-of-rack Wedge switch in 2013. The Wedge release made good FB’s promise to disrupt the $23 billion Ethernet switch market, now dominated by Cisco. Wedge is part of the Open Compute Project (OCP). The author says is OCP one of the most important tech projects Facebook has ever created. OCP began in 2012 as a radically new way to build and buy computer hardware. It creates free and “open source” designs where anyone can contribute to the designs and use them for free.

Open Compute Project

The hardware OCP designs range from computer servers to hard drives to the racks that hold them all. While Facebook still leads the project, it has grown into an industry phenom. In 2013, the article says Facebook saved “over $1 billion” by using the hardware invented by Facebook.

Cisco logoAnd a year ago, OCP announced plans to build a network switch. And not just any network switch, but one designed as a software-defined networking (SDN) device. BI explains that SDN is a new way to build networks that threaten Cisco, or at least Cisco’s 60+% profit margins. SDN takes the fancy features baked into network equipment – things like security, management – and puts them into the software. This turns the hardware into something that dumbly moves bits of information around. The hardware switch becomes easier to move around and manage, and far less expensive, all things that cloud computing does better.

Software-defined networking

Cisco has already recently released its own SDN product line Cisco Open Network Environment (ONE). Ms. Bort (and others) contend these products encourage customers to keep buying Cisco’s high-performance but expensive gear by including features that will only work with said Cisco’s products. No doubt many enterprises will want that. But Facebook’s switch is a threat for a lot of reasons.

  • Facebook is already testing it in its own data centers, one of the most demanding environments around, it said.
  • Wedge is “open source.” Cisco gear is somewhat like Apple’s (AAPL) gear. Cisco controls and keeps secret every part of it from the operating system to the custom processors.

Open Compute ProjectThe Wedge is different. Everything from the software to the choice of processor Intel (INTC), AMD (AMD), or ARM (ARMH), is “open source” meaning others can see and use or modify the design. As Facebook’s Yuval Bachar and Adam Simpkins explain in a Facebook post about the Wedge switch:

Traditional network switches often use fixed hardware configurations and non-standard control interfaces, limiting the capabilities of the device and complicating deployments. … Unlike with traditional closed-hardware switches, with “Wedge” anyone can modify or replace any of the components in our design to better meet their needs.

Facebook Wedge Switch

Standard parts

EnterpriseTech explains the Wedge switch was built using standard parts. It uses Broadcom’s (BRCM) popular Trident-II switch ASIC, which can provide sixteen 40 Gb/sec ports, which could easily be expanded to 32 ports. The ports can also be equipped with splitter cables, breaking them down into 10 Gb/sec ports that would boost the effective port count to 64 ports in a 1U enclosure. The Wedge switch has a compute element, which is a microserver based on an unspecified Intel processor (most likely an eight-core “Avoton” C2000 processor) that adheres to Facebook’s “Group Hug” microserver specification. Finally, the Wedge switch uses a Facebook homegrown version of Linux.

OCP has already attracted some big players beyond Facebook, too, including Microsoft (MSFT), Intel, Goldman Sachs, Rackspace (RAX), Bloomberg, and many others. It’s worth noting that enterprises cannot buy this switch from Facebook. They would have to order it from a custom manufacturer, just like all other OCP designs. But if this switch does well for Facebook, enterprises will be encouraged to try SDN. And up-and-coming competitors to Cisco, like Arista and Big Switch are involved in OCP and are standing by to cash in.

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Facebook is not alone. Google (GOOG) and Amazon (AMZN) have done the same thing after being frustrated by the slow pace at which incumbent tech companies move. By comparison, the Asian contractor manufacturers that Facebook has used for its open hardware have moved disarmingly quickly, according to Facebook’s Ahmad.

Is this an industry inflection point? There is a school of thought out there that believes we are. They compare today’s networking environment to the phone era when Lucent and Nortel were at their peak and failed in the face of the newfangled softswitch. The Cisco Smartnet annual fee on top of any hardware you buy from them sounds exactly like the kinds of pricing practice those who remember, saw in the voice industry when it was a duopoly of Nortel and Lucent.

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Ralph Bach has been in IT long enough to know better and has blogged from his Bach Seat about IT, careers, and anything else that catches his attention since 2005. You can follow him on LinkedInFacebook, and Twitter. Email the Bach Seat here.