25 Results Found
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.
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.
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.
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.
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.
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.
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.
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.
The process of subnetting is both a mathematical process and a network design process. Mathematics drives how subnets are calculated, identified, and assigned. The network design and requirements of the organization drive how many subnets are needed and how many hosts an individual subnet needs to support. Binary basics and IPv4 address structure were covered in part one of this two-part paper.
Learn how Docker makes it easy to update, test and debug software with this white paper and gain foundational knowledge about Dockerfile, Docker images and containers.
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.
Cloud can be described as the ability for users to provision new environments and/or services in a self-service fashion backed by automation. z Systems use technologies that best allow us to apply the strengths of our platform to cloud methodologies while complying with industry standards and preserving the security and manageability of our platform. This enables us to use the strengths of z Systems scalable multitenant architecture for on-premise cloud deployments. z Systems can also expose valuable enterprise services in a secure manner that feels native to mobile and Web application developers, enabling organizations to use enterprise services on z Systems with a frictionless experience for distributed developers.
The amount of data being produced does not seem to show any sign of slowing; if anything, it may in fact be exceeding projected growth rates. As these absolute limitations on raw hardware capacity begin to be felt, the importance of looking at all of the aspects of a computing infrastructure in order to tackle the future's truly large-scale computing demands, is imperative. This white paper examines how IBM's initiatives like Linux, Cloud Manager with OpenStack and the OpenPower Foundation IBM are meeting this challenge.
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.
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.
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).
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!
PowerVM is the virtualization environment for AIX, Linux, and IBM i running on the IBM POWER hardware platform. This white paper provides an overview of PowerVM concepts, architecture, terminology, and capabilities.
The process of learning how to subnet IP addresses begins with understanding binary numbers and decimal conversions along with the basic structure of IPv4 addresses. This paper focuses on the mathematics of binary numbering and IP address structure.
While the Internet uses IP addresses assigned by an Internet authority such as the American Registry for Internet Numbers (ARIN), there are too few of these numbers to uniquely identify the millions of computers and computing devices in the world. Therefore, most enterprises use private addresses which allow them to identify the aforementioned computers. Of course, these IP numbers cannot be allowed on the Internet because all private networks use the same ones so there would be vast overlapping of addresses, and the addresses are not compliant anyway. Therefore, it is necessary to change the identity of a private host to a legal public host. This process is called Network Address Translation (NAT) and may be implemented on Cisco firewall products and Cisco routers. The firewall device(s) at the Internet demarcation point is by far the more popular way to implement NAT, but routers are used in small offices or small-to-medium-sized networks in which a separate firewalling solution is not possible or affordable. The focus of this paper is on the router-based NAT solution.
In the spring of 2013, Cisco announced major updates to their Cisco Certified Network Associate (CCNA) curricula, including a new version of the CCNA Routing and Switching exam (200-120 CCNA). This paper provides a review of the CCNA Routing and Switching exam's critical concepts, as an aid to students preparing to pass the latest version of the CCNA Routing and Switching exam.
Global Knowledge instructor Kevin Schweers reviews the basic differences between the two paths to achieving CCNA certification.
Diane Teare, Global Knowledge's Cisco Course Director, discusses the advantages to taking our CCNA Boot Camp.
Global Knowledge Course Director and Lab Topology Architect Joey DeWiele, a specialist in Unified Communications, explains QoS.
Find out which OSI layer is concerned with reliable end-to-end delivery of data - and more. Get answers to your OSI reference model and network layer questions here.