Tips

Tips

• Firewall change management and automation can curb human error

  Firewall change management can enable firewall management automation so that human errors will be less likely to destroy performance and network admins will know the status of their firewall configuration.  Continue Reading

• Cloud Security: Ensuring multi-tenant security in cloud services

  Cloud security isn’t one size fits all for a range of cloud computing services, so we break down securing cloud services with multi-tenant cloud security options, from how to secure simple SaaS to complex virtual appliances with click-to-deploy ...  Continue Reading

• AT&T 4G network architecture and the LTE wars

  Frost & Sullivan analyst Mike Jude looks at how changes in the AT&T 4G network architecture deployment is upping the ante among 4G LTE wireless operators, particularly as smartphone and tablet use increases and spurs faster deployment.  Continue Reading

• Live migration networking: Enter long-distance data center bridging

  Live migration networking poses all sorts of challenges, including the potential need for long-distance data center bridging that results in traffic trombones. When it comes to server virtualization networking, is it possible to avoid the pitfalls?  Continue Reading

• 4G network offload: Radio access network and mobile backhaul solutions

  Wireless operators looking at 4G network offload to cope with growing mobile traffic have two options for relief – radio access network (RAN) offload using mobile hotspots and femtocells, and mobile backhaul solutions to move wireless traffic to the...  Continue Reading

• How to ensure WLAN performance optimization

  To ensure wireless LAN performance optimization, you’ll need to implement new WLAN measurement and testing tools and conduct WLAN performance testing periodically even after network implementation.  Continue Reading

• Mobile backhaul offload could affect Evolved Packet Core design

  Part two of our analysis of 4G network offload strategies looks at the implications of moving mobile backhaul traffic to the metro network, and how it could affect the design of LTE’s Evolved Packet Core.  Continue Reading

• Do Web application firewalls complicate enterprise security strategy?

  Using Web application firewalls should only be one slice of your overall enterprise network security strategy. Even then, users must be aware that application firewalls can leave behind vulnerabilities.  Continue Reading

• Why IPv6 won't rid the Internet of Network Address Translation

  One of the most common myths about IPv6 is that it will restore the so-called end-to-end principle of the Internet. This article explains how today's network needs for Network Address Translation (NAT) will make this very unlikely to happen.  Continue Reading

• IPv6 security issues: Fixing implementation problems

  Find out how to work around the implementation-specific IPv6 security challenges that will surface until equipment vendors close the gaps between their IPv4 and IPv6 releases.  Continue Reading

• End-to-end network application performance monitoring

  Network application performance monitoring inevitably leads to the use of multiple monitoring tools at once. That doesn’t have to be a management nightmare.  Continue Reading

• How to set up WAN simulators to test branch application performance

  A wide area network (WAN) simulator is necessary for enterprise IT architects and engineers to ensure acceptable application performance to end users at branch offices. In this tip, learn how to set up any generic WAN simulator to conduct network ...  Continue Reading

• Wireless LAN troubleshooting: How to get proactive

  Wireless LAN troubleshooting and WLAN diagnostics can be done proactively with a new set of tools, including WLAN managers and distributed sensor platforms that track and problem solve on complex networks.  Continue Reading

• How remote users change WAN connection and bandwidth requirements

  The growth of remote users entering an increasingly virtual workplace is putting stress on WAN connections and bandwidth. How should network technology evolve to meet the demands of teleworkers? Find out in this article.  Continue Reading

• Integrating public and private cloud services

  Network managers must support integrated public and private cloud services because users will go under the radar to use public cloud services that help them get their work done more easily.  Continue Reading

• WLAN testing: Wireless intrusion prevention systems and centralized testing tools

  WLAN testing has grown to accommodate the full-time surveillance necessary for super-speed 802.11n technology and mobile applications. Now WLAN testing can be done with AP-based wireless intrusion prevention systems and more.  Continue Reading

• Troubleshooting MPLS WAN services: VPLS, pseudowires, and Layer-3 VPNs

  Troubleshooting MPLS WAN services, like pseudowires, virtual private LAN services (VPLS) and Layer-3 VPNs (virtual private networks), can be trickier than traditional provider offerings. Learn how to fix Multiprotocol Label Switching wide area ...  Continue Reading

• How to use an edge firewall for network bandwidth management

  These five tips will help your organization apply quality-of-service controls on a network perimeter firewall.  Continue Reading

• How to prepare enterprise WANs for MPLS/VPN integration

  How should IT professionals prepare their enterprise WANs (wide area networks) for an MPLS VPN integration? Find out using the steps described in this tip.  Continue Reading

• When should companies consider building MPLS networks into their WANs?

  Learn when corporations should consider building Multiprotocol Label Switching (MPLS) networks into their enterprise wide area networks (WANs) in this tip.  Continue Reading

• How is MPLS different from SONET and ATM networks?

  WAN managers face an array of technology possibilities, like SONET, ATM and MPLS, being pitched to them by every service provider. Making sense of these terms, and the differences between the technologies, will enable organizations to make an ...  Continue Reading

• MPLS and MPLS Transport Profile (MPLS-TP): The technology differences

  Carriers hope MPLS Transport Profile, or MPLS-TP, will reduce transport network complexity by providing a packet switching technology that works across different types of transport networks but offers unified network management and provisioning. ...  Continue Reading

• Dynamic core network services: DNS and DHCP for virtualization

  Without dynamic core network services, virtualization will be stalled. Dynamic DNS and DHCP, as well as IPAM, are necessary to manage the constantly changing addresses and configuration in a virtualized environment.  Continue Reading

• Negotiating network service contracts with WAN carriers

  Here are 10 tips that describe how to negotiate network service contracts with potential carriers that provide wide area network (WAN) services. To find the best provider for your network and get the most out of your service-level agreement (SLA) ...  Continue Reading

• Choosing the right technology for fiber to the home (FTTH) deployments

  When deploying fiber to the home, FTTH network technology choices should be tied to both current and future network requirements. Accommodating both within project cost constraints means comparing active and passive optical networks (PONs) and the ...  Continue Reading

• Using NetStat commands and Microsoft Port Reporter tool to find network connections

  Expert Tom Chmielarski answers a reader's question about how to determine what programs are making connections to the Internet or other network systems.  Continue Reading

• Internet routing table's best hope: Locator/ID Separation Protocol

  Internet routing tables are still exploding as the IPv6 migration begins in earnest, and most technical solutions are unworkable. Locator/ID Separation Protocol (LISP), which addresses multihoming and Internet traffic engineering issues, is the ...  Continue Reading

• vSphere networking features: distributed vSwitches; private VLANs; IPv6

  VMware's release of vSphere 4 brings to the table a host of enhanced vSphere networking features that give network managers enhanced control over VM traffic with distributed vSwitches, as well as IPv6 support and the ability to build private VLANs.  Continue Reading

• How to plan an out-of-band network management system

  To design out-of-band network management systems that are both cost efficient and effective, networking teams must consider which assets are crucial for visibility and just how much information they need to see.  Continue Reading

• Virtual aggregation: Lifeline for exploding Internet routing tables

  Virtual Aggregation offers carriers steps to reduce the impact of the Internet routing table explosion on their networks and extend the life span of routers for up to 10 years, especially with the IPv4 address shortage, IPv6 deployment and fast BGP ...  Continue Reading

• Using WAN performance optimization for cloud computing environments

  While cloud computing poses significant wide area network (WAN) challenges, network managers can significantly improve the chances of success by looking at advanced WAN services and thinking strategically about which network operator to use in order...  Continue Reading

• Windows Server 2008 R2 Enterprise Certificate Authority setup

  If you are deploying an SSTP VPN to secure the remote users on your enterprise wide area network (WAN), then your VPN server must be provisioned with an X.509 certificate. Use these steps to learn how to configure Microsoft Windows Server 2008 R2 to...  Continue Reading

• How to set up an SSTP VPN to secure your enterprise network

  Learn how to set up an SSTP VPN (Secure Socket Tunneling Protocol Virtual Private Network) connection in order to secure the remote users on your enterprise wide area network (WAN). These instructions explain step-by-step what is required to create ...  Continue Reading

• IPv4 address exhaustion: Making the IPv6 transition work

  This two-part article by IP expert Ivan Pepelnjak first digs into IPv4 address exhaustion and attempts to speed the IPv6 transition. Then, he analyzes several semi-workable solutions that might help network operators manage the Internet routing ...  Continue Reading

• IPv4 to IPv6 translation: Comparing network-ready routing solutions

  IPv4 to IPv6 translation has been a problem for more than a decade, and several solutions that attempt to solve IPv4 address exhaustion are network ready, according to IP expert Ivan Pepelnjak, who gives his recommendations.  Continue Reading

• How to configure Virtual Switch Tagging for vSphere VLANs

  Virtual Switch Tagging is the most commonly used method of 802.1Q VLAN tagging for VLANs for vSphere. In this tip, learn how to configure a switch for VLAN Switch Tagging.  Continue Reading

• Service layer architecture: 4 main network operator requirements

  A recent survey revealed service layer architectures will have to meet four main network operator requirements to enable carriers to differentiate themselves effectively from over-the-top (OTT) services and act on new market opportunities.  Continue Reading

• vSphere VLAN: Understanding 802.1Q VLAN tagging

  vSphere VLANs have requirements different from those of VLANs in physical environments because VMs are fluid and can't be assigned to one physical NIC. So 802.1Q VLAN tagging offers a new approach to configuring and managing VLANs in vSphere.  Continue Reading

• How to choose ITIL monitoring tools

  ITIL network monitoring requires ITIL monitoring tools that scan network function as well as application performance and have the ability to continually update information in a series of ITIL v3 databases.  Continue Reading

• Networking for virtualization: Virtual network switch problems abound

  When it comes to networking for virtualization, every hypervisor comes with built-in switching, but virtual network switch problems abound, including the lack of traffic visibility and manageability.  Continue Reading

• Edge virtualization technologies solve virtual network switch woes

  Virtual network switches have posed serious problems for networking pros, but network edge virtualization technologies, including distributed virtual switches, may be what makes manageability possible in networking for virtualization.  Continue Reading

• Smart pipe strategy puts new telecom services in business value chain

  New TM Forum initiatives focus on new telecom services that bring in revenue while making 'smart pipe' networks essential to value chain partners. Whether through cloud computing services or network outsourcing, it is ushering in a new -- possibly ...  Continue Reading

• Financing FTTH deployment: Show us the ROI for Fiber to the Home

  The cost of FTTH deployment is high and demands heavy upfront equipment costs, yet competition keeps profit margins low. Find out how carriers are trying to improve the network ROI and reinvent the fiber to the home business model to help mitigate ...  Continue Reading

• Managing virtualization networking: Virtual network switch challenges

  Managing virtualization networking is a real challenge for network admins since they often don't have control of virtual network switches and the traffic that runs inside servers. But there are some solutions by way of virtualization networking ...  Continue Reading

• What is a WAN manager's role in storage?

  Bandwidth, data deduplication, disaster recovery (DR) and remote site acceleration and optimization are all areas where storage and WAN managers' job responsibilities overlap. This article explains how and answers the question, 'What is a wide area ...  Continue Reading

• Web SSL VPN introduction

  This Web SSL VPN introduction answers the question "What is a Web SSL VPN?" and explains SSL VPN advantages in remote access environments. Understand how they evolved from their lesser IPsec VPN counterparts, how they protect against hackers, how ...  Continue Reading

• A history of VPN: Disadvantages of early virtual private networks

  This history of VPN explains why early virtual private network solutions proved disadvantageous for businesses and how the advent of newer VPNs has created more secure and simpler-to-deploy solutions for wide area networks (WANs) and remote users.  Continue Reading

• Web SSL VPN advantages: Secure remote access

  View this business case to understand Web SSL VPN advantages and how they compare with traditional IPsec virtual private networks. Learn in this tip how secure remote access can be easier, faster and cheaper for enterprise wide area networks (WANs).  Continue Reading

• How to optimize Ethernet for data center networks

  It will take time for super-fast data center Ethernet technologies to evolve, so managers of data center networks must optimize existing Ethernet through a series of strategies that range from choosing very large switches to isolating storage ...  Continue Reading

• Traffic grooming in optical networks: Making real-world choices

  Solutions for traffic grooming in optical networks haven't kept pace with all-optical network development and still work in the electrical domain. Telecom providers have to make hard, real-world choices about how to best transport their services ...  Continue Reading

• Telecom's three advantages in selling Everything as a Service

  Cloud computing has ushered in the era of "Everything as a Service." Network operators need to exploit three advantages as they compete with other "X as a Service" providers selling software, infrastructure, platforms and more as a service.  Continue Reading

• Should you consider wireless WAN service for your enterprise?

  Learn the advantages and disadvantages of using wireless in your enterprise wide area network (WAN). This article on wireless WAN service considerations explains how 3G and 4G technology developments  Continue Reading

• Integrating LAN edge switch security and network access control

  The best form of network edge security is to integrate LAN edge switch security features with network access control devices so that networking teams can use VLANs, ACLs and health checks at the switch alongside NAC's behavior analysis.  Continue Reading

• Configuring LAN edge switches for network access authentication

  Intelligent edge switches can play a role in network access authentication, but these functions are often overlooked.  Continue Reading

• New telecom industry trends require OSS/BSS systems changes

  New telecom industry trends are driving OSS/BSS systems requirements, with new service layer architecture and customer experience management at the core, causing a move to automated systems and management-as-service logic.  Continue Reading

• Five key Evolved Packet Core issues face 4G LTE network planners

  Wireless operators deploying Evolved Packet Core technology in 4G Long-Term Evolution (LTE) networks agree on five key issues to address in this unique transition from 3G to 4G networking. Learn from their experience on everything from fiber ...  Continue Reading

• Integrating the Evolved Packet Core for seamless 3G/4G mobile backhaul

  When transitioning from 3G to 4G networks, wireless operators must plan carefully to migrate and integrate mobile backhaul so it accommodates both the new Evolved Packet Core for LTE and traditional TDM-based backhaul solutions.  Continue Reading

• Choosing a provider for WAN managed services for your enterprise

  How do you find the right provider for your business's WAN managed services? Ask the right questions. To get a managed service provider (MSP) at the right price with the right offerings and service-level agreements (SLAs), view these tips.  Continue Reading

• Seven IPv6 networking myths that don't match reality

  IPv4 addresses are running out, and the change to IPv6 networking is imperative, yet the myths surrounding what the protocol can and cannot do are becoming the stuff of legend. Our IP expert looks at IPv6 reality instead.  Continue Reading

• LAN edge switch security functions: Switch ACLs; filtering port traffic

  LAN edge switch security functions enable network administrators to use switch access control lists (ACLs) to filter incoming and outgoing traffic, as well as port-level traffic filtering and VLAN management for a more in-depth approach to LAN ...  Continue Reading

• Mobile WAN routers: Comparison and considerations for your enterprise

  If you have road warriors in your enterprise wide area network (WAN) workforce, you're probably worrying about exorbitant mobile broadband fees. Mobile WAN routers are a cost-effective alternative. Read this tip to learn when to use them in your ...  Continue Reading

• WAN video conferencing network design requirements for QoS

  To ensure high-quality video conferencing over your enterprise wide area network (WAN), you need to make sure you have enough bandwidth, among other things. Check out these WAN video conferencing network design configuration requirements before you ...  Continue Reading

• Benchmarking core switches: Modeling techniques for switch testing

  When it comes to benchmarking core switches, network managers find that testing tools are costly, so it may be worth using switch traffic modeling for testing core switch performance.  Continue Reading

• Integrated wireless network management systems work across infrastructures

  Enterprises must implement integrated wireless network management systems that are user-aware and offer end-to-end visibility but also provide the drill-down capabilities of wired network management systems.  Continue Reading

• Cloud networking: Inter-networking data centers and connecting users

  Cloud networks have a mission: connect a pool of resources that any user, anywhere can access without fail.  Continue Reading

• Five telecom provider benefits of offering cloud computing services

  Cloud computing services, platforms and infrastructure can benefit telecom service providers and provide Web-based applications to enterprise customers if carriers address challenges like security and performance to differentiate themselves and cut ...  Continue Reading

• Preparing your wired network for wireless network integration

  Wireless LAN integration means upgrading wired networks with new equipment and traffic prioritization to avoid bottlenecks between the networks and provide QoS for wireless multimedia applications, including WLAN voice and video.  Continue Reading

• Testing 10 gigabit Ethernet switch latency: What to look for

  Testing 10 Gigabit Ethernet switches means going beyond just speed to examine potential latency. Testing 10 gigabit Ethernet switch latency requires choosing the right switches and testing tools and recreating your track flow in just the right way.  Continue Reading

• Demystifying the evolved packet core for 4G LTE networks

  Designing 4G LTE network evolved packet core technology to ensure maximum resource efficiency and high-quality user experience calls for increased focus on metro "middle-mile" networks and analysis of expected traffic handoff patterns.  Continue Reading

• Unified fabric: Data center bridging and FCoE implementation

  IT organizations planning to deploy a unified storage and network fabric through data center bridging and FCoE implementation must consider a host of components, such as adapters, and configuration plans.  Continue Reading

• How to reach maximum 802.11n speed and throughput

  Vendors promise 802.11n WLAN speed of 600 Mbps, but users find they can realistically reach about 300 Mbps. In order to maximize 802.11n speed and throughput, users find they must have just the right AP configuration and use of antennas.  Continue Reading

• IP over dense wave division multiplexing (DWDM): Metro and core issues

  Providers pressured to increase network throughput while reducing costs can look to IP over DWDM in some metro network situations, such as saving money on residential Internet backhaul. IP expert Ivan Pepelnjak also walks you through the ...  Continue Reading

• Wireless or Ethernet LAN? An apples-to-apples cost comparison

  Now that 802.11n has made wireless LAN faster and more reliable, network administrators are wondering: Wireless or Ethernet LAN? Until now Ethernet replacement hasn't been feasible, but 802.11n WLAN benefits are much more tangible now.  Continue Reading

• Top five telecom industry trends for 2010: Market transformation ahead

  Five telecom industry trends for 2010 show clear signs that the coming year may well bring a market transformation unlike any the telecom industry has seen in quite some time.  Continue Reading

• Deep packet inspection: Who needs it for network traffic management?

  Using deep packet inspection (DPI) is a great way to analyze Internet traffic and bandwidth use beyond the TCP headers, when its use doesn't violate network traffic management regulations. Carriers may find that if they don't embrace DPI, their ...  Continue Reading

• Integrating wired and wireless LANs: Making the business case

  With improved 802.11n performance, wireless LAN ports are overtaking Ethernet in the enterprise, and networking teams are pressed to find solutions for integrated wired and wireless network management.  Continue Reading

• Three major issues face telecom on cloud computing services adoption

  Service providers must address three important cloud computing services issues – security, reliability and portability – if enterprise customers are going to adopt the new model, and the TM Forum is aiming to take a key role in the ...  Continue Reading

• How to test LAN switch energy efficiency

  Vendors promise energy-efficient networks, but they often can't provide actual measurements for LAN switch power consumption. In this best practices guide, learn methods for measuring LAN switch energy efficiency.  Continue Reading

• Testing LAN switch power consumption: A best practices guide

  LAN switch power consumption testing is as crucial as benchmarking speeds and feeds on switches. Enterprises that develop a set of best practices for testing network power consumption will save millions in op-ex annually.  Continue Reading

• Telecom network test equipment takes on strategic role

  Telecom network test equipment is becoming a strategic necessity for operators, who want to integrate the NOC with lab- and field-testing equipment to get a handle on network performance and stability issues.  Continue Reading

• Desktop virtualization network requirements

  CIOs have fallen in love with virtual desktop infrastructure, so networking teams must meet desktop virtualization network requirements that include network bandwidth management and traffic prioritization for real-time communications.  Continue Reading

• Is the future of 4G LTE wireless networks in cloud computing?

  4G LTE wireless networking will drive low-revenue data business to carriers, so the key to making a profit is to bundle cloud-enabled managed services with basic communications.  Continue Reading

• Selecting a WAN service provider: Keep an eye on SLAs

  Adding new layers on your WAN for application monitoring and optimization can easily increase costs and complexity, which can take a toll on organizations struggling with limited budgets and short staff. The solution may be a managed service ...  Continue Reading

• Procurement zones become telecom network infrastructure strategy

  Telecom carriers are changing their traditional network technology procurement procedures and looking at vendor-led "procurement zones" to ensure equipment and solutions interoperability and get around delayed standards issues in an increasingly ...  Continue Reading

• Launching a network operations outsourcing project

  Outsourcing telecom network operations is becoming more common as next-generation network increase in complexity and IT focus, but a successful launch should include specific planning steps.  Continue Reading

• Telecom outsourcing: Network Planning and operations guidelines

  Next-generation networks are increasingly complex, and the number of telecom infrastructure devices to manage is increasing pressure in the network operations center. Outsourcing network operations may be the answer, but first network operators must...  Continue Reading

• Telecom network operations and infrastructure planning: Outsourcing the challenge

  Next-generation network complexity is causing heavy increases in telecom network operations costs, and finding the skill set needed to integrate and maintain network infrastructure are is increasingly difficult. Telecom carriers are exploring new ...  Continue Reading

• Supply chain revolutionary: AT&T leads procurement zone adoption

  Changing the telecom procurement processes to make equipment vendors more responsible for integration and network operations has been discussed for months, and now it's a reality, with AT&T leading the way with its Domain Supplier program.  Continue Reading

• How to plan for 802.11n wireless LAN upgrades

  802.11n WLAN upgrades mean more than just implementing new antennas and access points. 802.11n network requirements include the need for more power and controller capacity, as well as complex management and monitoring tools.  Continue Reading

• Distributed network management means no more hard NOCs

  Distributed network management with out-of-band networks enables enterprises to move away from network operations centers, becoming eco-friendly and spending less.  Continue Reading

• FTP accelerator may be more of a quick than long-term fix

  One of the top challenges for many companies is transferring large files between network locations, so they are looking for ways to simply speed up the transfer of files from one point to another. FTP or file acceleration alternatives not only solve...  Continue Reading

• Effective service delivery platforms: Are we there yet?

  Service delivery platforms (SDPs) can play an essential role in making sure telecom carriers aren't relegated to transport-only status and instead can increase revenue by serving customers and over-the-top (OTT) partners using flexible multimedia ...  Continue Reading

• Preparing metro networks for 4G LTE backhaul

  Wireless operators must ensure their metro network infrastructure is optimized to handle 4G wireless broadband LTE voice and data, because the backhaul capabilities determine how much data the cell can support.  Continue Reading

• 4G LTE wireless transition: Examining the services advantages

  In the transition to 4G wireless broadband networks, mobile operators need to analyze the business opportunities and customer drivers of 4G LTE networks. For providing revenue-generating services, LTE has three main advantages over 3G, including ...  Continue Reading

• Deploying 802.11n access points: Best practices

  802.11n access points offer greater speed, footprint and ability to support demanding applications than their 802.11a/b/g counterparts, but they require different configuration, monitoring and management. Learn strategies for 802.11n deployment.  Continue Reading

• Telecom industry trends hint at big changes to come

  Telecom industry changes stemming from network convergence and interest in driving IT-oriented service-level architecture could cause upheaval in the equipment-buying and management process, vendor professional services requirements and CIO/CTO ...  Continue Reading

• Service delivery platforms enable service differentiators

  Deploying software-based service delivery platforms (SDPs) can allow network operators speedy service deployment and validation and offer differentiated services that increase revenue and customer value.  Continue Reading

• Deep packet inspection: Controversial but valuable traffic management tool

  Deep packet inspection (DPI) may be controversial from a customer privacy and net neutrality standpoint, but the technology has valuable Internet traffic management capabilities to help service providers prioritize and deliver types of traffic, and ...  Continue Reading

• New managed network services can increase service providers' revenue

  Thanks to their economies of scale and changes in enterprise networking needs, telecom service providers have an enormous opportunity to grow their managed services revenue with new cloud-based, WAN, IT and security services at effective price ...  Continue Reading

• Self-organizing networks could be next-gen OSS model

  The concept of self-organizing networks emerging from LTE and IMS technology may offer service providers a new telecom OSS model for broad service operations management that automates processes and enables lower operations costs for high-volume, ...  Continue Reading