Tips

Tips

• The new WAN: How SDN changes wide area network operations

  SDN promises to transform the wide area network. Network pros should consider how SD-WAN will also change operational and organizational needs.  Continue Reading

• Has the time for wireless enterprise networks arrived?

  Is it time for Wi-Fi to become the primary access method for enterprise users?  Continue Reading

• How to manage Wireshark display filters

  Wireshark display tools such as capture and packet filtering offer critical insights into network functioning, but only if properly understood and managed.  Continue Reading

• Exploring OpenDaylight Project internals

  Diving into ODL Project internals as an engineer can be daunting, but doing so can lead to a richer understanding of the SDN platform. First, you'll need some new tools.  Continue Reading

• How new technologies are reshaping MiTM attacks

  MiTM attacks are including wireless networks among their targets, targeting vulnerabilities in applications, browsers, mobile, IoT and the cloud.  Continue Reading

• Are you ready for an SDN deployment?

  The principal motivation behind SDN deployments is the need for a responsive and nimble IT organization. While the network architecture is definitely in the future, not all are ready for it.  Continue Reading

• IO Visor challenges Open vSwitch

  An alternative to Open vSwitch aims to execute software upgrades without disrupting network services. Expert Keith Townsend explains how the technology works.  Continue Reading

• How to build the NFV business case

  Building a compelling business case for NFV is challenging, but essential. Telecom expert Tom Nolle explains how to convince CFOs that the time is right for implementation.  Continue Reading

• 'Load balancers' to 'ADP': The latest on app delivery

  Last decade's 'load balancers' are today's 'application delivery platforms.' Time to get up to date, too, on what else is new in app delivery tech.  Continue Reading

• How to meet the challenges of NFV orchestration

  Orchestration challenges are slowing NFV adoption, with a number of factors hindering deployments. Expert Lee Doyle explains and offers advice for service providers.  Continue Reading

• Developing consistent information security policy management

  Never-ending network challenges mean IT and business leaders need to adopt a unified information security policy management platform.  Continue Reading

• Searching for the right WAN connection type

  WAN connection types have evolved from T-1s and ISDN links to dynamic pipes capable of supporting bandwidth-intensive applications. What's next?  Continue Reading

• Filtering IPv6 extension headers is sometimes necessary

  IPv6 extension headers cause public Internet servers to drop packets, but such filtering is sometimes necessary for security purposes.  Continue Reading

• How to use network orchestration for video and voice QoS

  Walk through how to use tools like Ansible, Jinja2 and YAML to orchestrate real-time video and voice QoS across traditional network devices without full SDN.  Continue Reading

• Google's Ubernetes assists with software container management

  Ubernetes -- part of Google's evolving container management project -- uses network virtualization to unite container clusters across virtual and physical locations.  Continue Reading

• Wi-Fi Aware and its impact on the enterprise

  Wi-Fi Aware offers application-driven, personalized, proximity-based services that detect local capabilities. What does the new face of Wi-Fi innovation look like?  Continue Reading

• SDN orchestration with Anuta Networks' NCX platform

  Anuta Networks' NCX allows for orchestration in a multivendor environment. Expert Keith Townsend says that makes it one of the more interesting SDN products on the market.  Continue Reading

• SDN and OpenFlow improve broadband deployment

  Broadband deployment is time-consuming and complicated, but SDN and OpenFlow could change that. Networking expert Nick Buraglio explains.  Continue Reading

• How to troubleshoot Android Wi-Fi connection problems

  Android smartphone and tablet users now abound in the enterprise, making Android Wi-Fi connection troubleshooting a key element of enterprise wireless network connection management.  Continue Reading

• SDN will play key role in mobile network security

  SDN will serve as a critical tool in the fight to secure the mobile network, thanks to its adaptability, which will allow it to address new threats as they emerge and evolve.  Continue Reading

• Is 25 Gigabit Ethernet the cure for data center oversubscription?

  With reduced hardware costs and more flexible lanes in the physical architecture, 25 Gigabit Ethernet may offer answers in oversubscribed data centers.  Continue Reading

• DLP tools essential to sensitive data protection strategy

  Data loss prevention tools that guard sensitive data are a security administrator's friend. But what exactly do they do?  Continue Reading

• Persuading management to support the IT buying process

  What steps should you take to get your network buying needs approved by top management? One piece of advice: Learn what your manager needs.  Continue Reading

• SDN monitoring can help meet new network visibility demands

  To keep pace with the demands of next-generation networks, management systems must be scalable, dynamic and intelligent. Expert Lee Doyle says SDN monitoring tools can help.  Continue Reading

• Do wide area networks need to get software-defined?

  Should you upgrade your wide area network to SD-WAN? Learn what factors you should consider before making the leap.  Continue Reading

• Network engineer skills for an SDN world

  To compete in a software-defined industry, networking professionals need to learn and adapt. Expert Terry Slattery explains which network engineer skills are most important in SDN.  Continue Reading

• Can the NETCONF protocol give OpenFlow a run for its money?

  OpenFlow is no longer the undisputed king of the SDN castle, with alternative standards like the NETCONF protocol challenging its hegemony.  Continue Reading

• The role of ARM in NFV platform development

  Semiconductor manufacturer ARM wants to be one of the top two sources for NFV platform silicon. Networking analyst Lee Doyle says the company and its partners will likely succeed.  Continue Reading

• IPv6 filtering threatens impact of new protocol

  IPv6 extension headers give the protocol additional versatility, but widespread IPv6 filtering is threating the new protocol's ability to survive in the public Internet.  Continue Reading

• Virtual routers find evolving carrier network uses

  Virtual routers work well in some parts of carrier networks, but not everywhere. Now, mobile, cloud and SDN offer evolving uses for virtual routing.  Continue Reading

• Time to get your cloud network architecture ready

  Enterprises need to ensure their cloud network architecture is ready for the future. Here are some concepts network managers should think about.  Continue Reading

• Using quality of experience to boost mobile user experience

  Quality of experience is a handy way to measure mobile users' experience with application performance. But understanding all of the components that comprise QoE is another task entirely.  Continue Reading

• How to find the best network management tools today

  Finding the best network management tools today can be a challenge. Here's guidance on how to proceed.  Continue Reading

• Is a hybrid WAN architecture right for you?

  Hybrid WANs have a lot of benefits, but make sure you understand how they can work in your organization.  Continue Reading

• Do managed software-defined WAN services make sense?

  By offering managed software-defined WAN services -- and potentially hastening MPLS' demise -- are providers sabotaging themselves? Our expert says no.  Continue Reading

• OPM hack two months later: What was learned?

  Network security expert Michele Chubirka shares her thoughts about June's OPM hack and what steps IT should take to fend off future attacks.  Continue Reading

• Taking steps to avoid another OPM security breach

  The Office of Personnel Management security breach rocked the IT industry. Here's what should be done to make sure it doesn't happen again.  Continue Reading

• Content delivery networks take on new roles

  Content delivery networks can pave the way for using rich media in an enterprise but make sure you understand how it works.  Continue Reading

• Do software containers spell trouble for SDN?

  In the brave new world of software containers, you might not notice SDN, but that doesn't mean it isn't there.  Continue Reading

• Choosing QoS vs. upgrade to solve link congestion

  Learn how to determine if quality of service will handle a congested link or if the capacity of your network must be increased.  Continue Reading

• SDN business case: How software-defined WANs save money

  Build a strong SDN business case in the wide area network, with potential for significant return on investment in both savings and performance.  Continue Reading

• Mitigating the challenges of container networking

  Container networking can cause issues at scale. Networking expert Jeff Loughridge suggests ways network engineers can work around such challenges.  Continue Reading

• Software containers can create problems in the network

  Software containers offer attractive alternatives to hypervisors, but in large-scale deployments, they can cause problems for network engineers.  Continue Reading

• Big data impact on network operations probed in study

  Big data is big news, but it's also influencing networking pros' capacity planning, according to an Enterprise Management Associates study.  Continue Reading

• Mobile, video content delivery key to next-gen metro networks

  SDN and NFV applications could be the answer to make mobile and video content delivery in the metro network more agile for delivering enterprise services.  Continue Reading

• Overcoming the challenges of wiring farm networks

  The sound of mooing and the smell of diesel fuel are just part of what makes wiring a farm for networking a special experience.  Continue Reading

• ALU, HP and Juniper virtual router review

  How do virtual routers from Alcatel-Lucent, HP and Juniper stack up? See where they might fit in your organization.  Continue Reading

• Tools you need to become your own network cloud manager

  An ever-increasing percentage of enterprise workloads is moving to the cloud. Now is the time for IT pros to acquire the cloud-monitoring tools a next-gen network requires.  Continue Reading

• SDN and Openflow: Is the protocol dead?

  SDN and OpenFlow were once practically synonymous, but today the protocol is conspicuously absent. Its evolution offers an important lesson for networking pros.  Continue Reading

• Successful NFV platforms hinge on middleware selection

  When selecting NFV platforms, communication service providers should look for highly reliable middleware that allows them to adapt their networks over time.  Continue Reading

• Gaining business intelligence from network data analysis

  Harvesting your networking data to generate business intelligence can be done -- if you know how to begin.  Continue Reading

• Cisco, Brocade virtual router review

  Virtual routers can be measured by platforms, features and price. Kevin Tolly reviews VRs from Brocade and Cisco.  Continue Reading

• OpenStack Heat jumpstarts SDN learning, but still needs work

  OpenStack Heat -- an orchestration project -- uses SDN to launch applications in the cloud. It's one step closer to mainstream SDN, but we're not there yet.  Continue Reading

• Next-generation Wi-Fi: How SDN changes the wireless landscape

  The future is now. SDN technologies are quickly becoming central to vendors' next-generation Wi-Fi products and services -- and their role will only increase.  Continue Reading

• Management as a service? Don't underestimate cloud's capabilities

  Management as a service provides enterprises some key benefits like reduced cost and improvements in reliability.  Continue Reading

• The new cloud network: More than an Internet link

  Learn about the virtual WAN, the software-defined WAN and other new cloud network possibilities.  Continue Reading

• How software-defined WAN architecture is changing the market

  SDN principles are transforming the wide area network, with a number of networking companies -- both startups and established players -- offering software-defined WAN technologies to enterprises.  Continue Reading

• Understanding the basics of a hybrid VPN

  In part two of a three-part series, an expert looks at how hybrid VPNs are impacted by the shift from private services to the public Internet.  Continue Reading

• When the benefits of network virtualization aren't enough

  Consultant Glen Kemp shares the story of a client who re-evaluated the benefits of network virtualization after encountering a platform bug.  Continue Reading

• When planning IT, orgs need analytics and big data

  Networking expert Mike Jude says big data analytics isn't complete without cognitive computing. But a cognitive computing framework should not be taken lightly.  Continue Reading

• The science behind virtual routers and their emerging roles

  The evolution of virtualization has now hit the router market. Here's what you need to know to make virtual routers work for you.  Continue Reading

• NFV basics: Hold the specialized hardware

  John Burke writes that network functions virtualization goes way beyond merely deploying a physical appliance.  Continue Reading

• Cloud and mobility call for new network defense tactics

  As network attacks become more sophisticated, IT must equip itself with new network defense tactics.  Continue Reading

• Manage apps with APM tools, fix critical performance issues

  IT pros need to consider new developments in technology like software-defined networking and the Internet of Things when choosing the best Ethernet switch for their current and future network.  Continue Reading

• IT managers should focus on capacity, not wireless throughput

  Wireless throughput is getting faster, but capacity is the measure you should really be studying.  Continue Reading

• Service providers take cautious approach to NFV implementation

  Service providers' strategies for NFV implementation are designed to minimize disruption while transitioning legacy architectures to a virtualized world.  Continue Reading

• The evolution of Carrier Ethernet service chaining offers new options

  Operators looking to service chaining for Carrier Ethernet must assess both the issues and opportunities for use via NFV or as hosted network edge services.  Continue Reading

• MPLS fabric is natural fit for ISP backbone overlays

  While data centers typically use an IP fabric under their network overlays, ISPs may find that MPLS fabric makes more sense as backbone underlays.  Continue Reading

• How network overlays could benefit provider backbones

  ISPs are weighing potential benefits of network overlays in the backbone, including increased agility, faster service provisioning and lower Opex.  Continue Reading

• Overlay networks could revolutionize ISP backbone

  Overlay networks have already taken the data center by storm, but they also offer advantages to the ISP backbone network, including more agility and reduced Opex.  Continue Reading

• NFVi: Virtual networks drive changes in telecom infrastructure needs

  Expert Lee Doyle explains why service provider networks need NFV infrastructure -- high-performance, reliable and scalable platforms to support virtual network functions.  Continue Reading

• Networkers face tough slate of cloud and security decisions

  Deploying a cloud service means it's time to craft new policies that govern security procedures.  Continue Reading

• Hybrid cloud stresses application monitoring tools

  Keeping tabs on application performance gets tougher in hybrid cloud situations. APM tools can help.  Continue Reading

• What is SDN? The answer now includes automation and virtualization

  What is SDN? What software-defined networking really means has evolved dramatically and now includes automation and virtualization.  Continue Reading

• What you need to know about the hybrid WAN

  The ballooning amount of data generated by users and applications is fueling the development of hybrid WANs. Here's what you need to know.  Continue Reading

• Virtual network functions, not network functions virtualization, belong in enterprise

  While network functions virtualization is exclusively a service provider technology, virtual network functions are at home in the enterprise space.  Continue Reading

• Facebook, Google use SDN to boost data center connectivity

  Internet content providers like Facebook and Google are already using SDN to improve hyperscale data center connectivity. But more could be done.  Continue Reading

• How indoor mesh wireless solved an outdoors problem

  Using an approach engineered for indoor deployments helped this system administrator solve a network connection problem in the great outdoors.  Continue Reading

• Are OpenStack and NFV MANO interchangeable?

  Network functions virtualization and cloud management systems appear to overlap, but whether or not the latter can manage and orchestrate a virtual network is open to debate.  Continue Reading

• ICYMI: Cisco teams up with SpiderCloud for USC offering

  ICYMI: Cisco and SpiderCloud target the enterprise with their jointly developed mobile offering; Kemp introduces a free version of its virtual ADC.  Continue Reading

• Advent of 2.5, 5 Gigabit Ethernet switches roiling market

  Faster wireless has opened the market for a new breed of switches. Expert Craig Mathias will tell you what you need to know.  Continue Reading

• SDN load balancer debate: Controller or ADC?

  Expert David Jacobs discusses whether software-defined networking will render application delivery controllers obsolete or complement evolving SDN.  Continue Reading

• Wi-Fi heat map: Secret weapon for wireless network admins

  Using heat map technology to pinpoint network activity saves time instead of sending a senior admin to do a site test survey across the entire campus.  Continue Reading

• Virtual network function development: Ecosystem or silo?

  The future of virtual network functions depends on how easily they can be deployed. Consensus is still a ways off.  Continue Reading

• Ten recommendations to improve your NFV network evolution

  As providers move into network functions virtualization, these 10 recommendations can help guarantee a successful NFV network transition.  Continue Reading

• With wave 2 Wi-Fi on the horizon, is your network ready?

  Wave 2 Gigabit Wi-Fi will usher in speeds of up to 7 Gbps. Expert Lisa Phifer explains what you need to do to get ready.  Continue Reading

• How to buy: What IT needs to look for in data center switches

  IT needs to know what to look for when buying data center switches that support high speeds and lower latencies to pave the way for agile data center network consolidation.  Continue Reading

• Seven wireless networking trends to remember

  Wireless networking is empowering, but it comes with a fair amount of complexity. Stay clear-headed and understand your own needs and constraints, even as the fog gathers around you.  Continue Reading

• Opportunistic encryption: The IETF's 50 shades of protection

  The IETF is asking for help as it defines the opportunistic security standard. What does this mean to the enterprise?  Continue Reading

• Open NFV toolkit Snabb Switch offers virtual Ethernet programming

  Snabb Switch, an emerging open NFV toolkit, enables Ethernet function programming in a software switch. Could it leave vendor-developed hardware in its wake?  Continue Reading

• IPv6 attack attempts and how to mitigate them

  Compartmentalizing traffic and employing static entries can help enterprises block neighbor discovery-based attacks in their IPv6 networks.  Continue Reading

• Mitigating IPv6 neighbor discovery attacks

  You might be vulnerable to IPv6 neighbor discovery attacks. But there are tools you can use to counter those threats.  Continue Reading

• REST APIs in SDN: An introduction for network engineers

  REST APIs play a vital role in SDN controllers and applications. This will be new territory for many network engineers, but it doesn't have to be overwhelming.  Continue Reading

• Five SDN starter kit options you should know

  SDN starter kits are designed to help enterprises evaluate the technology before they begin transitioning their networks to the new architecture. What should you look for?  Continue Reading

• How to make legacy and emerging network technologies work together

  Emerging network technologies like SDN and NFV have to interwork with legacy equipment and be managed as one. Find out what it will take to get there.  Continue Reading

• How to protect your IPv6 address management

  Expert Fernando Gont explains how to probe whether your IPv6 address components are vulnerable to attack.  Continue Reading

• IT network management and SMBs: What to look for

  Resource-challenged small, medium-sized businesses need special tools to help them oversee their networks. What to look for.  Continue Reading

• Avoiding the pitfalls of virtual network functions takes planning

  Building a network functions virtualization framework means understanding which features, or functions, are most important. Tread carefully.  Continue Reading

• The journey to next-generation networks begins now

  Network operators will see real change in their next-generation networks in 2015, moving SDN and NFV from science project status to serious trials, while mobile networks get the lion's share of investment, and new regulations affect all of it.  Continue Reading

• How to avoid IPv6 neighbor discovery threats

  If you're ready to deploy IPv6, get ready to understand neighbor discovery and its vulnerabilities.  Continue Reading