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Top Cybersecurity Certifications to Enhance Your Career in 2019

Article | Oct. 04, 2019

Managers are in dire need of cybersecurity professionals with specific skills. If you’re looking to advance your career, or transfer into the cyber field, now is the time to get certified.

18 IT and Business Certifications Worth Having

Article | Sep. 10, 2019

Here are 18 certification options, in no particular order, that are worth your effort based on site searches, feedback from subject matter experts and data in the Global Knowledge 2019 IT Skills and Salary Report.

IT Certifications: 5 New Realities

Article | Aug. 27, 2019

The value of IT certifications has grown considerably over the last decade. Examine the evolution of certification trends, see the top-paying certifications and learn how decision-makers are struggling to hire certified employees.

New and Emerging Certifications for 2019

Article | Aug. 10, 2019

Looking ahead at new and emerging certifications provides insight into the areas deemed valuable in the IT industry. If you are an early adopter or in a position where you need to show that you have the bleeding-edge expertise of a technology, this list of recent and upcoming certifications is for you. 

Top-Paying and Most Popular Cisco Certifications from the IT Skills and Salary Report

Article | July 09, 2019

One-third of North American IT professionals expect Cisco to be an emphasis for their organization in the next year. A lot of that is due to reputation—Cisco skills and certifications are considered some of the most valuable in the industry.

15 Top-Paying IT Certifications for 2019

Article | July 08, 2019

Based on survey responses from the Global Knowledge 2019 IT Skills and Salary Report, this year’s highest-paying certifications reveal a strong emphasis on particular topics, such as cloud computing, cybersecurity, networking and project management. In fact, cloud and project management dominate the top five spots.

Manage Time and Priorities Using Microsoft Outlook

Webinar – Recorded | June 05, 2019

Learn to effectively use Microsoft Outlook as a work organization and management tool. This webinar will help participants enhance their personal and team productivity, while giving them more control over activities and information.

5 Most Popular IT Certifications for 2019

Article | May 13, 2019

While IT professionals are most likely to hold certifications in CompTIA and Microsoft, a greater percentage are pursuing credentials in AWS and Cisco in 2019. Here is a list of the five most sought-after IT certifications this year.

Cisco LAN Switching Fundamentals

Webinar – Recorded | May 09, 2019

This recorded webinar will help you understand the basics of switch functionality in Cisco networks. In this setting, a SWITCH is functioning at OSI Layer 2. Before SWITCHES we used BRIDGES to segment within the same network.

Operational Technology (OT) Network Security Challenges and Solutions

Webinar – Recorded | March 21, 2019

As cybersecurity threats continue to be a top concern facing organizations today, the Information Technology (IT) Governance team must stay abreast in assuring that the organization is protected. The IT Governance team must continually evaluate the risks to the organization and put in place Processes, Procedures and Technologies to protect the assets of the organization.  

Develop Your Skills with Unlimited Access to Red Hat Online Learning

Webinar – Recorded | Jan. 31, 2019

The Red Hat® Learning Subscription delivers 12-months of unlimited access to all Red Hat Online Training courses. The Standard RHLS subscription is a higher tier with access to 5 certification exams and up to 2 retakes.

Cisco Products that Strengthen Software-Defined Network Solutions

Article | Jan. 22, 2019

In support of software-defined networking, Cisco has introduced several products to strengthen networks and meet the increased demand for flexible and cost-efficient solutions. The Cisco SDN solution in the data center is ACI. Outside the data center the primary Cisco solution is DNA.

Accelerate Your Path to Cisco Routing and Switching Certification

Article | Jan. 17, 2019

The CCNAX - CCNA Routing and Switching Boot Camp is a great option to obtain Cisco Routing and Switching skills while pursuing the CCNA Routing and Switching certification. 

What is Software-Defined Networking?

Article | Jan. 15, 2019

Software-defined networking (SDN) is a solution that will enable your organization to meet the demands of network programmability and automation. The result will be greater network agility to support new applications while complying with increasing security needs.

10 Certification Exam Tips and Tricks from the Experts

Article | Jan. 14, 2019

Global Knowledge subject matter experts know certification exams inside and out. They understand the study methods and test-taking techniques that pay off the most when it’s exam time. Here are 10 certification exam tips and tricks, directly from our experts and Certification Prep Guides, that will best position you for certification success.

ICND1 is the Starting Point for all Cisco Technologies and Careers

Article | Dec. 19, 2018

If you’re interested in pursuing a career in Cisco technologies or acquiring a Cisco career certification, all paths begin with ICND1 v3.0 - Interconnecting Cisco Networking Devices, Part 1.

Cisco’s Intent-Based Networking and the Journey to Software-Defined Networks

White Paper | Dec. 07, 2018

The traditional network engineering model of configuring one device at a time simply doesn’t scale to the growing needs of today’s network. Cisco's intent-based networks and software-defined networking solutions will enable your organization to meet the demands of network programmability and automation. The result will be greater network agility to support new applications while complying with increasing security needs.

Cisco's Intent-Based Networking and the Journey to Software Defined Networks

Webinar – Recorded | Nov. 20, 2018

Watch this recorded webinar to understand how Cisco Intent-Based Networks and SDN technologies will transform your network to be the cornerstone of your digital success.

10 Certifications That Really Mean Something

Article | Nov. 01, 2018

How do you measure the experience and knowledge of an IT professional? One way is through certifications. Earning any certification is a notable achievement, though not all certifications carry the same perceived worth.

Top 10 Certifications with Staying Power

Article | Nov. 01, 2018

IT is a very fast changing industry – what is hot today may be a tiny niche market in only a few years and lesser known things may turn out to be huge trends. That having been said, there are many certifications that will be around for a long time. However, this does not imply that recertification and/or continuing education credits are not required to maintain certification. Predicting the future is always challenging, including in IT, but these certifications are good bets.

How to Secure Cisco Routers and Switches

Article | June 17, 2018

Routers and switches make up the bulk of network infrastructure and are vulnerable to attack. We hear about mass Denial of Service (DOS) attacks or Distributed Denial of Service (DDOS), but the network itself is as big a risk because if it is taken out, there is no path for the data to flow.

Sharpen Your Skills with Python for Cisco Networking Engineers

Article | June 14, 2018

Take charge of your Cisco network devices with Python programming As a network engineer, you might wonder why there’s any need for you to learn Python. After all, network automation is clearly where the industry is headed. And there are many tools that allow yo...

Cisco On-Demand Learning

Video | May 07, 2018

This overview of the Cisco On-Demand Learning portfolio covers the various products and solutions available. Including all access collections, certification e-camps, and individual course titles.  With Cisco On-Demand Learning you can train your workforce easily and effectively.

DevOps is the Missing Piece for Businesses that Demand Change

White Paper | Feb. 27, 2018

Building upon the IT best practices of Lean, Agile Scrum and IT Service Management, DevOps adds that “missing” layer to tie together the service lifecycle workflow across Development and Operations, while leveraging the latest in automation technology. Demand for skilled, open-minded, and collaborative professionals with DevOps knowledge is rapidly increasing. Are you ready for change?    

Top-Paying IT Certifications for 2018

Article | Jan. 15, 2018

Topping this year’s list is ISACA with four IT certifications, followed by AWS, Cisco and Citrix. Our 2018 IT Skills & Salary Report also shows trending areas in cybersecurity, cloud computing, and business—demonstrating what skills you need to become a more valuable and higher-paid IT professional.

How Data is Delivered

Article | Sep. 21, 2017

Every second of every day, data is being sent and received. Billions of data packets are processed by your company’s network every day. In fact, you received dozens of packets just to read this article, but the vast majority of us have no idea how this works. People have no clue as to what goes on behind the scenes to ensure data actually gets to the right device.

What’s the Difference Between Hubs, Switches & Bridges?

Article | July 30, 2017

The key difference between hubs, switches and bridges is that hubs operate at Layer 1 of the OSI model, while bridges and switches work with MAC addresses at Layer 2 of the OSI model.

Six Scary IT Certification Exams

Article | July 13, 2017

Certifications are the most common way in IT to prove you have the skills to solve various technical and business challenges. In this article, I'll address a range of skill sets. For each certification listed, I've included what the certification measures, the requirements to obtain it.

The Benefits of Cisco ACI in the Data Center

Article | June 19, 2017

In 2013, Cisco released their Software Defined Networking (SDN) solution for the data center known as Cisco Application Centric Infrastructure (ACI). For many years, the networking industry has been asking for an approach to configuring networking devices more efficiently than having to individually configure each and every router and switch.

Defend Your Data: Protecting Against New Sources of Attack

Webinar – Recorded | June 14, 2017

A 60 minute, interview style webinar with Tejas Vashi of Learning@Cisco to discuss network security trends, risk mitigation and the recently released Cisco Cybersecurity Report. As organizations go through digital business transformation, attack surfaces are increasing, making it more difficult for Enterprises to secure today’s networks and proactively mitigate security breaches.  Businesses and IT security professionals must focus on their most important goal:  establish a secure communications environment. Join us to hear from Tejas Vashi, Senior Director of Learning@Cisco’s Product Strategy & Marketing, about key trends from Cisco’s latest cybersecurity industry research, the security challenges organizations face today, and what they can do to mitigate the risks.

How to Control IGP Updates with Route Maps and Distribute Lists

Article | May 09, 2017

The purpose of Interior Routing Protocols (IGP), and routing protocols more generally, is to advertise the existence of destination networks. All protocols then have some method of picking what they would consider to be the best path and maintain the information. By...

A Guide to Network Time Protocol (NTP)

Article | May 03, 2017

What is Network Time Protocol (NTP)? Well, it’s a network protocol used to synchronize clocks between computing systems over a packet switched network. It’s been around since the mid-1980s and was developed by David Mills at the University of Delaware; it is one of the oldest protocols still around on the Internet. NTP replaced other time synchronization technologies that didn’t have some capabilities to adjust time based on location of the time source or time server relative to the receiver or adjusting to the variation of delay found on typical data networks.

How Precision Time Protocol (PTP) is Improving Accuracy One Clock at a Time

Article | April 27, 2017

Precision Time Protocol (PTP) is a protocol designed to go beyond what Network Time Protocol (NTP) can offer relative to accuracy. PTP is IEEE standard 1588 that can give local computing systems accuracy within the sub-microsecond range (such as microsecond, nanosecond or picoseconds) whereas NTP is within milliseconds or longer. PTP standard was first released in 2002 and known as 1588-2002. In 2008, the IEEE released a revised standard for PTP, known as 1588-2008, that improved the accuracy and precision of the protocol. It is also known as PTPv2 and is not backward compatible with the older version. PTP was developed for packet based network for control and measurement systems.

Understand the New Cisco CCNA and CCNP Data Center v6.0 Curriculum and Certifications

Video | March 16, 2017

Learn everything you need to know about the new Cisco CCNA and CCNP Data Center curriculum and certifications.  Take the traditional path or the accelerated path to achieve CCNA Data Center Certification.  Understand the Design and Troubleshooting paths for CCNP Data Center certification.  Understand the revised course requirements and content changes.  Understand the certification exam availability for the new exams, the retirement date for the old exams, and the available migration paths if you have an uncompleted certification with some courses or exams completed.

How to Reach Devices in Other Domains with IGP Route Redistribution

Article | Feb. 20, 2017

One size does not always fit all. At times there’s a need to run more than one routing protocol and have more than one routing domain: multivendor shops, migration from one protocol to another, scalability issues of a single protocol, political or personal preference, production versus test networks, mergers, and acquisitions.

Know Your Options Before Selecting a Routing Protocol

Article | Feb. 07, 2017

Routers and switches make up the bulk of the network infrastructure and are vulnerable to attack. In a previous article, I talked about some of the different ways of hardening your network devices. In this blog, I’d like to specifically examine the routing protocols used on the major Cisco network operating systems.

How to Troubleshoot Cisco’s Dynamic Multipoint VPN (DMVPN)

Article | Feb. 02, 2017

Dynamic Multipoint Virtual Private Network (DMVPN) is a Cisco network solution for those with many sites that need access to either a hub site or to each other.

Cisco CCNA Routing and Switching Paths

Video | Sep. 28, 2016

Understand the two training options to prepare for the CCNA Routing and Switching certification - traditional and accelerated. Global Knowledge allows you to learn at your pace. The traditional training path features two courses, ICND1 and ICND2, and ten days of training. The accelerated training path combines the content found in ICND1 and ICND2 into a single 5 day course, the CCNAX Routing and Switching Boot Camp. Learn which option is best for you.

Overview of the Cisco Collaboration Curriculum

Video | Sep. 28, 2016

Understand the Cisco Collaboration technology and certification training portfolio. This overview will cover the courses needed to prepare for the CCNA Collaboration and CCNP Collaboration certifications. You will also learn about recommended skills-focused courses covering basic and advanced Unified Communications Manager administration.

Overview of the Cisco Security Curriculum

Video | Sep. 28, 2016

Understand the Cisco Security technology and certification training portfolio. This overview will cover the courses needed to prepare for the CCNA Security and CCNP Security certifications. You will also learn about recommended skills-focused courses covering SourceFire technologies, the ASA security solution, and the ISE access control and authentication platform.

15 Top-Paying Certifications for 2016

Article | June 02, 2016

What were the top paying IT and project management certifications for 2016? his article will help you answer both questions by providing a review of the 15 top-paying certifications.

Advanced Routing Tips and Tricks: Router Path Selection Modification and Optimization with EIGRP and OSPF

Webinar – Recorded | Jan. 19, 2016

This hour-long, information-packed webinar will provide tips and tricks for modifying and optimizing router path selection with EIGRP and OSPF. You will learn about EIGRP redistribution, including redistributing static routes into EIGRP, and about OSPF redistribution. You'll learn about using route maps and prefix lists and about summarization with EIGRP and OSPF. Also, you will receive tips for controlling updates and path selection.

15 Top-Paying Certifications for 2016

Special Report | Jan. 01, 2016

Which mainstay certifications should be in your list of credentials? What's the next up-and-coming certification? This article will help you answer both questions by providing a review of the 15 top-paying certifications.

Cisco FabricPath: Is it Switching, Routing or a Bit of Both?

White Paper | Dec. 04, 2015

Learn how Cisco FabricPath combines the benefits of Layer 2 Switching and Layer 3 Routing, allowing for the scalability and flexibility of Layer 2 while supporting traditional Layer 3 components such as optimal paths, equal cost multipath routing and a Time to Live (TTL) field.

CCNAX Routing and Switching Boot Camp or ICND1 and ICND2: Which Path Is Best for You?

White Paper | Dec. 02, 2015

What path you decide to take to earn your Cisco Certified Network Associate (CCNA) Routing and Switching certification will depend on a number of factors including your availability, willingness to work long hours and your ability to absorb a lot of information in a short period of time. This white paper includes self-assessments and training recommendations to help you figure out if taking the CCNAX Routing and Switching Boot Camp or taking two separate ICND1 and ICND2 courses is the best fit for you.

Understanding Cisco Security Solutions: Are You Ready for a New Era of Risk?

White Paper | Oct. 06, 2015

The responsibility for securing organizational data has spread beyond the traditional IT professional. While there are more diverse security solutions, there are more diverse and sophisticated security threats. Security awareness and training is essential for everyone within an organization. Learn how Cisco has continued to evolve its security solutions and training.

Cisco Unified Collaboration Solutions Infrastructure Overview

White Paper | Sep. 25, 2015

The Cisco Unified Collaboration solutions offer anytime, anywhere access for organizations who need instant access to clients, vendors and remote employees. Cisco products enable authorized external users to connect to corporate resources, create different user groups and manage large scale deployments. Learn how Cisco Unified Collaboration infrastructure products can help you provide everything from call control which provides signaling and dial plan support to the expressway series providing firewall traversal for external access.

Cisco Collaboration Endpoints

White Paper | Sep. 17, 2015

Your clients, vendors and workforce don't always operate in the same building, state or country. Cisco Collaboration Endpoint products make communicating with your counterparts across town or on the other side of the world easy. This white paper provides you with product specifications and capabilities for Cisco's phone, desktop, and large screen immersive videoconferencing options.

Benefits of Virtual Classroom Live Cisco Training

Video | Aug. 20, 2015

Learn more about the many benefits of Global Knowledge's Virtual Classroom Live training.

Building Up Network Security: Intrusion Prevention and Sourcefire

Webinar – Recorded | Aug. 20, 2015

In this second webinar in a series dedicated to building up network security, network security specialist Catherine Paquet will fill you in on advanced threat protection that integrates real-time contextual awareness, intelligent security automation and superior performance with industry-leading network intrusion prevention, Sourcefire.

Is Cisco IOS XE the Future of Cisco?

Article | Aug. 04, 2015

Cisco Internetwork Operating System (IOS) has been around since a little after the inception of Cisco Systems as a company. In 1984, Len and Sandy Bosack from Stanford University founded Cisco Systems with a small commercial gateway server. The first Cisco router that I touched was an Advanced Gateway Server (AGS), which was the first marketed product of the company. After this came the Mid-Range Gateway Server (MGS), the Compact Gateway Server (CGS) and later the Integrated Gateway Server (IGS) and AGS+. The first version of IOS that I touched was 8.2(7). The operating system was based on a Unix-based system and was designed as a monolithic operating system, meaning that processes are stacked and interrelated.

Building Up Network Security: An Introduction

Webinar – Recorded | July 16, 2015

Despite advances in security, hackers continue to break through network defenses. In this hour-long webinar, network security specialist Catherine Paquet will examine the favorite methods and targets of hackers and will introduce you to the different categories of security technologies. In this foundational presentation, you will learn about the benefits of security solutions such as firewalls, VPNs, IPS, identity services and BYOD.

Cisco Completes the Security Picture with Sourcefire

White Paper | June 19, 2015

Security attacks have become more advanced; therefore, security solutions have needed to evolve to deal with those threats. Cisco's acquisition of Sourcefire brings a new paradigm to the security landscape. No longer is security a one-time, instantaneous event. Security now is threat based, network cognizant, and continuous. All organizations, public and private, need to be aware not only of the constantly changing threat environment, but must be prepared to respond in kind.

Collaboration Systems Release 10.6 Features Overview

White Paper | June 19, 2015

Cisco Collaboration Systems Release (CSR) 10.6, along with CUCM 10.5(2), enhances the user and administrator experiences and interactions. In many cases, a change to one product may necessitate changes to other products. For example, where the deployment options for video conference control changed to place all control behind the Telepresence Conductor, Cisco Prime Collaboration management tools had to be updated to reflect this new deployment approach. As new endpoints are added, CUCM and Prime Collaboration both needed to be updated to reflect the new endpoints.

VLANs and Trunks

White Paper | June 11, 2015

When properly utilized, VLANs and trunks provide flexibility, stability and ease of troubleshooting. This paper provides technical details about VLANs and trunks, along with design options at a basic to intermediate level. Recommendations and commands are included throughout.

Cisco Collaboration Certifications Overview

White Paper | June 09, 2015

On February 17, 2015, Cisco announced changes to the existing voice and video certifications and detailed the new collaboration certification portfolio. This white paper provides an overview of the changes to Cisco certifications with respect to voice and video, outlining dates, and deadlines that may affect your certification process.

Switching Operations

White Paper | June 05, 2015

Switches play a vital role in moving data from one device to another. Specifically, switches greatly improve network performance, compared to hubs, by providing dedicated bandwidth to each end device, supporting full-duplex connectivity, utilizing the MAC address table to make forwarding decisions, and utilizing ASICs and CAM tables to increase the rate at which frames can be processed.

2015 IT Skills and Salary Report

Special Report | May 06, 2015

The results are in and analysis is complete from our eighth annual IT Skills and Salary Survey. This was our third in partnership with Windows IT Pro and one of the industry's largest with more than 11,000 North American respondents. Download your copy to learn how your salary compares to your peers, whether you have the skills IT decision-makers are looking for and much more  

Cisco UCS B Series Uplink Strategies

White Paper | April 10, 2015

This paper explains uplink strategies for traffic coming in and out of a Cisco Unified Computing Solution (UCS) chassis. An uplink can be Ethernet, Fibre Channel, or FCoE and is a physical connection on the FI that leaves the UCS domain directed away from the B Chassis.

Configuring Multicast with MPLS and GETVPN

White Paper | April 09, 2015

This paper covers the configuration of IP Multicast with Multiprotocol Label Switching (MPLS) including the basics of Multicast with the Group Encrypted Transport VPN (GETVPN).

Dynamic Multipoint Virtual Private Network (DMVPN)

White Paper | April 09, 2015

A Dynamic Multipoint Virtual Private Network (DMVPN) can be used with other networks like Multiprotocol Label Switching (MPLS), but streaming multicast is accomplished quite well using "Default" and "Data" Multicast Distribution Trees (MDTs) with MPLS.

Hardware and Technology Updates in the Cisco UCS Server Products

White Paper | April 09, 2015

Cisco Unified Computing Solution (UCS) is a very popular and powerful solution. Cisco continues to provide updated UCS management options for the full range of data center installations.

IPv6: Are We There Yet?

White Paper | April 09, 2015

The first big push toward implementation of IPv6 was mobile devices. Now, one of the driving forces is the Internet of Things. As the name implies, this means everything, including machine to machine communication (M2M).

The Internet of Things: A Primer for the Curious

White Paper | April 08, 2015

Like it or not, Internet of Things (IoT) is upon us. There are a number of factors that will impact its adoption rate, and the inevitable privacy (or lack of) discussions will likely happen sooner than later. This is going to change the world as we know it, in many cases for the better. But we will need to keep an eye on the extent to which it invades our personal lives if it is going to be the positive force it has the potential to be.

Multicast Configuration Comparison of Cisco IOS and Nexus OS

White Paper | April 07, 2015

While there are differences between the IP Multicast configuration in the IOS and the Nexus OS, the Protocol Independent Multicast (PIM) protocol remains fundamentally the same. If you feel comfortable configuring Multicast in the IOS, you should be able to acclimate fairly easily to the changes in the Nexus OS.

Multicast Implementation with Virtual Port Channels and FabricPath

White Paper | April 07, 2015

Multicast Sparse Mode and its derivatives are supported in the Nexus OS. This white paper explains how it has been implemented in the Nexus platform to provide optimum performance in both virtual PortChannel and FabricPath environments.

OSPFv3 Address Families: How They’re Used and Why

Article | Jan. 15, 2015

Now that we are moving towards IPv6, the logical move would be to also run OSPF for that protocol suite, which makes sense and reduces the learning curve for implementation and support. But, that would mean that you have to run two OSPF processes — one for IPv4 unicast and one for IPv6 unicast. That means two sets of policies have to be applied, including security for OSPF itself. Running OSPFv3 for both IPv4 and IPv6 reduces the number routing protocols and the configuration that goes with that. It makes it easier to implement policy in a consistent way for both protocol suites.

Policy-Based Routing: What Is It and How Is It Used?

Article | Jan. 08, 2015

What is PBR? Policy-Based Routin (PBR) is the process of using a route map to match on something more than the destination and then defining the path out of the router based on those conditions. PBR could match on destination only, but typically we would match on more. PBR is considered to be an exception to the RIB and is looked at before examining the RIB.

Policy-Based Routing: What Is It and How Is It Used?

Article | Jan. 08, 2015

What is policy-based routing? PBR is the process of using a route map to match on something more than the destination and then defining the path out of the router based on those conditions. Learn more here!

Implementing Virtual Routing and Forwarding (VRF) on Cisco Nexus Data Center Switches

White Paper | Nov. 18, 2014

Cisco provides a wide array of connectivity and isolation tools within the datacenter. This white paper addresses Virtual Routing and Forwarding (VRF), which is a Layer 3 isolation mechanism for routing protocols.

BGP Cross-Address Family Support: What Are the Gotchas and How Do I Fix Them?

Article | Oct. 30, 2014

As I’ve stated before, I like Border Gateway Protocol (BGP). I think it’s an interesting protocol, and yes — it’s complicated, but I guess that part of why I like it. There are a lot of knobs to tweak in BGP, maybe too many, but that’s another post. Anyway, we are now running BGP version 4 and it has had extensions written that support more than just IPv4 unicast routing. We now have IPv4 multicast, IPv6 unicast and multicast, VPNv4, VPNv6, and a few others.

Understanding Calling Search Space Usage at the Phone and Line Level

Article | Oct. 14, 2014

Where should you apply the CSS, and why are there two places to apply it? One approach is to pick one of the parameters and apply the permissions there. Quite often, an administrator will pick the phone-level CSS and configure it there so that it applies to all calls made from all lines. The goal is to specify what partitions are allowed to be called. 

Benefits of Using “+” Dialing in the CUCM Dial Plan

Article | Oct. 03, 2014

For smaller companies, configuring a dial plan to account for variations in dialed numbers is often not a problem. However, companies that are larger and more global in nature encounter a number of issues when designing their dial plan approach.

How To Use BGP Prefix-Independent Convergence

Article | Sep. 30, 2014

Border Gateway Protocol (BGP) is a fascinating protocol because there are a lot of things that can be done with BGP. However, there has always been an issue with BGP, which is convergence (the time the network or protocol takes to accept change). BGP was designed for scale, not speed, so it’s something that we’ve had to tolerate from its inception.

How To Use Enterprise License Manager with Cisco Unified Communications Manager

Article | Sep. 29, 2014

License provisioning has always been a bit of a challenge in the CUCM environment. Prior to CUCM v9.0, licensing was managed on a per-cluster basis with each cluster requiring its own license files that were tied to the media access control (MAC) address of the cluster’s publisher. This approach to license management was limiting in the fact that one cluster might have unused licenses while another cluster may be at its limit and sharing between clusters was not possible.

Enabling Call Screening Based on Caller ID in CUCM

Article | Sep. 23, 2014

Occasionally I am asked to configure the ability to block calls based on Caller ID. Prior to Cisco Unified Communications Manager (CUCM) v8, the only way to block these calls was to configure voice translation rules and profiles on the gateway receiving the calls. This has changed in CUCM v8 with the introduction of an additional parameter in translation patterns: Route Next Hop By Calling Party Number.

How to Use MPLS Ping and Traceroute

Article | Sep. 17, 2014

With Multiprotocol Label Switching (MPLS) as popular as it is in the provider space and private MPLS clouds for larger enterprise, we needed some tools to help troubleshoot and maintain these networks. With the providers in mind, the normal ping or traceroute may not be enough.

The Packet Delivery Process: Locally Connected Hosts

White Paper | Sep. 09, 2014

Moving data from one networked device to another requires several different functions. Each function has its own protocol or protocols that define how it is accomplished. Also, the process of delivering data from one device to another can vary. The main factor in data delivery is determining whether the two devices are directly connected or remotely connected.

The Packet Delivery Process: Remotely Connected Hosts

White Paper | Sep. 09, 2014

Moving data from one networked device to another requires several different functions. Each function has its own protocol or protocols that define how it is accomplished. Also, the process of delivering data from one device to another can vary. The main factor in data delivery is determining whether the two devices are directly connected or remotely connected.

Comparing SDN, NFV and Cloud Computing

Article | Aug. 14, 2014

While most organizations have not yet fully (or in many cases even partially) adopted cloud computing, the trend is growing in all but the smallest businesses.