- CCNP Security: Intrusion Prevention and Intrusion Detection Systems
- Nov 22, 2011
- This chapter covers evaluating and choosing approaches to intrusion prevention and detection.
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- OSI and TCP/IP Model Layers
- Nov 22, 2011
- Because both the OSI and TCP/IP models are still used when describing modern day protocols, this article will take a look at them both, including their layers and how they can be related to each other.
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- The TCP/IP and OSI Networking Models
- Nov 21, 2011
- This chapter explains the terminology and concepts behind TCP/IP. It also explains the terminology behind the OSI networking model in comparison to TCP/IP.
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- CCNP: Troubleshooting OSPF
- Nov 14, 2011
- In this article, Anthony Sequeira discusses basic troubleshooting steps for the complex, link-state routing protocol Open Shortest Path First (OSPF).
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- CCNA Voice 640-461: Understanding the Cisco IP Phone Concepts and Registration
- Oct 27, 2011
- This chapter walks you through the key concepts and technologies used to build a Cisco VoIP network while working towards your CCNA Voice certification.
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- CCDA DESGN 640-864: Designing Remote Connectivity
- Oct 6, 2011
- This chapter discusses wide-area network technologies and design and includes sections covering Identifying WAN Technology Considerations, Designing the Enterprise WAN, and Designing the Enterprise Branch.
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- Implementing Cisco Unified Communications Manager: Digit Manipulation (CCNP Voice)
- Oct 1, 2011
- This chapter describes digit manipulation tools that allow a CUCM administrator to implement flexibility and transparency in the dial plan of a company.
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- CCNA SEC: Router Hardening
- Sep 14, 2011
- This article discusses various means of making sure your routers are set up with maximum security, including manually hardening the router and router hardening with Cisco SDM.
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- To Route or Not to Route: A Day in the Life of a Router
- Aug 31, 2011
- A lot goes into the decision process regarding routing, and it happens long before a packet arrives at the router for its turn to be forwarded. In this article, the author takes a close look at a day in the life of the router.
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- What Happens in the VLAN Stays in the VLAN
- Aug 31, 2011
- This article discusses discover the secrets of the VLAN and why it is a critical tool in today's networks.
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- Working with Protocol Analyzers and Related Certifications
- Aug 30, 2011
- Ed Tittel, creator of the Exam Cram series, discusses the current network protocol analyzers that any real expert needs to know. Who exactly counts as an "expert?" Ed also sorts out which of the many available certifications are really useful in identifying true masters of protocol analysis.
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- Implementing Cisco Unified Communications Manager, Part 2 (CCNP Voice): Examining Remote-Site Redundancy Options
- Aug 25, 2011
- This chapter provides an overview of the different options with remote-site redundancy in CUCM multisite installations.
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- CCNP Security VPN Cert Guide: Configuring Policies, Inheritance, and Attributes
- Aug 24, 2011
- This chapter looks at the methods available for policy assignment in real-life scenarios and reviews how these policy methods work together if more than one is assigned to a user through the inheritance mode.
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- CCNP: Troubleshooting EIGRP
- Aug 3, 2011
- In this article, we will examine the art of Troubleshooting EIGRP, a key topic for CCNP certification. This article will begin by reviewing key information we should keep in mind about the protocol or its proper implementation and troubleshooting, and then specific scenarios will be illustrated. The article will also provide specific command guidance and usage.
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- Flexible Netflow Concepts and Configuration
- Jul 22, 2011
- This article takes a look at the typical uses for the Flexible Netflow feature, how it works and how it can be configured into a complete solution.
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- Cisco Network Infrastructure Security: Control Plane Policing Concepts and Configuration
- Jul 21, 2011
- This article takes a looks at control plane policing, examining what it is, how it works and how it can be configured to secure this equipment.
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- SNMP Concepts and Configuration
- Jul 20, 2011
- This article takes a look at some of the basic SNMP concepts, examining how it works and how it can be configured to perform basic functions.
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- Routing Protocol Authentication Concepts and Configuration
- Jul 13, 2011
- This article takes a look at the available routing protocol authentication options for the most often used routing protocols: EIGRP, OSPF, RIP and BGP.
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- Spanning Tree Protocol Concepts and Configuration
- Jul 13, 2011
- This article takes a look at some of the basic STP concepts and reviews the configuration required to deploy STP on a switch.
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- Securing the Management Plane of a Cisco Network Device
- Jul 11, 2011
- This article takes a look at a couple of the different features that can be used to secure the management plane of a Cisco network device (or devices) and reviews the basic configuration of these features.
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