Expert Analysis
Latest Content tagged with Networking
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The Network Complexity Conundrum
Commentary  |  6/2/2014  | 
Using complexity to deal with uncertainty in a network design will make a network more fragile. The challenge is finding a balance.
Cisco ACI Making Progress
Commentary  |  6/2/2014  | 
Since it launched last fall, Cisco's Application Centric Infrastructure has attracted a number of early adopters and a growing partner ecosystem, but Cisco still has a lot of work ahead to accelerate ACI adoption.
Ethernet Switch Market Drops Almost $1B in Q1
News  |  5/30/2014  | 
Dell'Oro Group cites "pause" in datacenter switching spending due to Cisco Nexus 9000 switches as one reason for the decline.
How SDN Will Help Network Engineers
How SDN Will Help Network Engineers
Network Computing Videos  |  5/30/2014  | 
MPLS Traffic Engineering Guide: Success & Alternatives
Education  |  5/30/2014  | 
MPLS traffic engineering can improve network performance by routing data to alternate paths. When should you use this technology? We explain the pros and cons.
5 NFV Benefits & The Trends Driving Them
Commentary  |  5/30/2014  | 
Network functions virtualization addresses several trends shaping service provider networks.
Next-Gen WAN: Build or Buy?
Commentary  |  5/28/2014  | 
Enterprises need to consider a number of factors, including security requirements, when choosing between an in-house model or managed network service for their future WAN connectivity needs.
Cisco Live's 7 Best Scenes
Slideshows  |  5/22/2014  | 
Attendees at Cisco Live this week were showered in APIs and ACI, and swimming in selfies. Take a look at the highlights from the annual customer event.
Cisco Expands On Its ACI Strategy
News  |  5/22/2014  | 
Networking giant touts its SDN platform at Cisco Live and offers ways for customers to extend ACI policy to legacy Nexus infrastructure.
NSA Reports Prompt Chambers To Ask Obama For Changes
News  |  5/21/2014  | 
Cisco CEO complains of alleged NSA interception of networking gear in letter to President, asks for new "rules of the road."
Network Engineers Tackle ACI
News  |  5/19/2014  | 
Twitter was humming with chatter about Cisco Live and ACI today as IT professionals sought information about the SDN platform.
Cisco Live Unfolds: The Chambers Keynote
Commentary  |  5/19/2014  | 
Join us to experience and weigh in on the John Chambers keynote as it happens from Cisco Live, today at 3:30 p.m. PDT.
Cisco Faces Make-Or-Break Week For SDN
Commentary  |  5/19/2014  | 
Cisco is counting on ACI, its software-defined networking strategy, to keep its hold on the enterprise infrastructure market. We'll see how that plays out this week at Cisco Live.
Fast Reroute In MPLS Traffic Engineering
Education  |  5/16/2014  | 
Learn how to use the fast reroute feature to create backup and pre-configured paths in MPLS traffic engineering.
Using MPLS Traffic Engineering To Meet SLAs
Education  |  5/15/2014  | 
Learn how to control traffic levels and use the autoroute and forwarding adjacency features in MPLS traffic engineering.
Building An Information Security Policy, Part 5: Managing Identities
Commentary  |  5/14/2014  | 
The final installment of this series looks at how to assign identifiers to users and devices for a secure network.
NSA Allegedly Installs Backdoors On US Network Devices
News  |  5/13/2014  | 
The US intelligence agency intercepts routers and other networking equipment being shipped overseas and adds spyware, according to a new Guardian report.
Ethernet Innovation Inside The Datacenter
Commentary  |  5/12/2014  | 
With big data analytics, social media, and other new applications pushing east-west bandwidth demand, datacenters are deploying faster Ethernet and unlocking new capabilities.
Beyond VPN: Supporting The Mobile Workforce
Commentary  |  5/12/2014  | 
Today's employees demand support for mobile devices and cloud applications that the traditional hardware-based network cannot supply.
Path Selection In MPLS Traffic Engineering
Education  |  5/9/2014  | 
One of the main uses of MPLS traffic engineering is for bandwidth optimization. Find out how to direct traffic between routers with label-switched paths.
MPLS Traffic Engineering: Tunnel Setup
Education  |  5/8/2014  | 
Traffic engineering can greatly improve performance in MPLS networks. Find out how specific traffic paths are defined and calculated using routing attributes and protocols.
Speeding Up Storage Networks
Commentary  |  5/8/2014  | 
With SSDs pushing the limits of networks, it's time to consider how compression and deduplication could help speed storage traffic.
Social WiFi Sign-In: Benefits With A Dark Side
Commentary  |  5/7/2014  | 
Providing social networking credentials to get free WiFi access gives merchants a wealth of customer data for marketing and is a boon for managed service providers. But is the price too high for customers?
The Network Is The Computer, Again
Commentary  |  5/6/2014  | 
Today, the old Sun Microsystems tagline rings truer than ever. In our cloud-centric world, perhaps computers don't exist at all anymore.
IT Is A Quantum World
Commentary  |  5/5/2014  | 
System administrators need to take a quantum mechanical view when weighing the probability of new failure modes that come with new technologies such as deduplication.
NHR End Of Life Alert, May 2014
Commentary  |  5/5/2014  | 
Find out which routing and switching products from major hardware manufacturers will no longer be sold or serviced.
Cloud-Managed WLAN Is Hot, But Not For Everyone
Commentary  |  5/2/2014  | 
The market for cloud WiFi has grown exponentially, providing a range of options suitable for small organizations, but not so much for large enterprises.
Buy Or Build Your Own SDN?
Commentary  |  5/1/2014  | 
An ESG survey shows a broad range of approaches among enterprises when it comes to deploying software-defined networking.
WANs For The Cloud Must Pick Up The Pace
Commentary  |  4/30/2014  | 
Next-generation WANs leverage improvements in broadband networking and integrated premises-based technologies to address cloud computing demands.
Turkey’s Twitter Shoot: Lessons Learned
Commentary  |  4/30/2014  | 
Network engineers can gain insight into resilience, indirection techniques like NAT, and Internet governance from Turkey officials' none-too-successful attempt to shut down the popular messaging service.
Ethernet Switch Market: Who's Winning?
News  |  4/29/2014  | 
An Infonetics survey on companies' spending plans and vendor perceptions shows Cisco and HP leading the pack, with Huawei making some inroads into the US Ethernet switch market.
50 Shades Of Open SDN
Commentary  |  4/28/2014  | 
The word open is used frequently in the software-defined networking market, but a closer look at three SDN initiatives shows that the meaning of open depends on your point of view.
Tech Talk Week 1: Service Provider Network Visibility
Commentary  |  4/28/2014  | 
Welcome to the first in a series of weekly community discussions, as we explore the lack of visibility enterprise customers often have into the service provider network.
WAN Adaptations Needed For Cloud
Commentary  |  4/25/2014  | 
The cloud is putting more demands than ever on the WAN, and the WAN must respond with increased speed, throughput, and flexibility.
Need For Speed Drives WAN Optimization
Commentary  |  4/25/2014  | 
Our annual WAN survey finds usage of WAN optimization and traffic shaping up 4% over last year, despite some predictions in the industry to the contrary.
Edge Devices Are The Brains Of The Network
Commentary  |  4/23/2014  | 
In any type of network, the edge is where all the action takes place. Think of the edge as the brains of the network, while the core is just the dumb muscle.
The Ideal Physical Network
The Ideal Physical Network
Network Computing Videos  |  4/23/2014  | 
Martin Casado describes how he envisions the most functional physical network, using the model of a chassis switch and backplane.
Big Switch, Avaya, IBM, VMware: SDN Strategies
News  |  4/22/2014  | 
Part 4 in our series comparing vendors' SDN approaches.
SDN: Waiting For The Trickle-Down Effect
Commentary  |  4/22/2014  | 
Like server virtualization and 10 Gigabit Ethernet, SDN will eventually become a technology that small and midsized enterprises can use. But it's going to require some new packaging.
IT Certification Exam Success In 4 Steps
Commentary  |  4/22/2014  | 
There are no shortcuts to obtaining passing scores, but focusing on key fundamentals of proper study and preparation will help you master the art of certification.
Top IT Certifications To Jump-Start Your Job
Slideshows  |  4/22/2014  | 
Working in IT infrastructure means a whole lot more than hardware these days. Boost your career with these hot certifications on virtualization, cloud, security, and more.
Building an Information Security Policy Part 4: Addresses and Identifiers
Commentary  |  4/21/2014  | 
Proper traffic identification through techniques such as IP addressing and VLANs are the foundation of a secure network.
Heartbleed Flaw Exploited In VPN Attack
News  |  4/21/2014  | 
Security researchers report attack on an enterprise that used the OpenSSL vulnerability to steal VPN session tokens and evade two-factor authentication.
SDN Strategies Part 4: Big Switch, Avaya, IBM,VMware
Commentary  |  4/18/2014  | 
This series on SDN products concludes with a look at Big Switch's updated SDN strategy, VMware NSX, IBM's hybrid approach, and Avaya's focus on virtual network services.
Juniper, Dell, Brocade, Alcatel-Lucent: SDN Strategies
News  |  4/18/2014  | 
Part 3 in our series comparing vendors' SDN approaches.
SDN Strategies Part 3: Juniper, Dell, Brocade, Alcatel-Lucent
Commentary  |  4/17/2014  | 
In the third part of this series examining vendors' SDN products, I discuss Juniper's network overlay approach and three other vendor strategies for tackling software-defined networking.
Heartbleed's Network Effect
News  |  4/16/2014  | 
The crypto bug likely will have a long-lasting impact on internal servers, clients, and VPN networks.
Converged Infrastructure: 3 Considerations
Commentary  |  4/16/2014  | 
If you're looking at a converged platform as a way to increase data center efficiency, here are three factors to keep in mind.
SDN Vendors Vie For Market, Mindshare
News  |  4/16/2014  | 
It's a land grab in the software-defined networking market, with heavyweights and startups rolling out an array of technologies for automating the network.
SDN Strategies Part 2: Cisco, Arista, HP
Commentary  |  4/15/2014  | 
In the second part of this series examining vendors' SDN products, I look at Cisco ACI, Arista's programmable approach, and HP's commitment to OpenFlow.
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