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Cisco IOS Diagnostic Tools

In this article, Sean Wilkins discusses the several diagnostic tools included with Cisco IOS. These tools simplify the diagnosis and troubleshooting of any network issue. This article is an excellent read for anyone that is prepping for the CCNP TSHOOT exam.

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Advanced Dial Peer Concepts and Configuration

This is the second in a series of Dial Peer Concepts and Configuration articles. This advanced overview goes into more depth about dial peer matching and the differences between inbound and outbound dial peer matching.

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Communications Manager Express – Installation and Upgrade Overview

Cisco’s Communications Manager Express (CME) offers a wide range of features for voice networks. Although installation of CME is rather simple, there are certain steps that need to be considered. The following article provides a brief overview of the installation process.

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An Overview of Cisco Communications Manager Express

As high-performance networking switching equipment continues to drop in price, these systems are being implemented more frequently. This article gives a broad overview of one of these systems: Cisco Unified Communications Manager Express (CME). Like many of these systems, CME can be implemented over existing networks in several fashions.

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Improve VoIP Quality with Link Fragmentation and Interleaving

Sean Wilkins discusses configuration of Link Fragmentation and Interleaving (LFI). Although LFI is rather easy to implement, the benefits can be significant by preventing delays of large high-priority packets across the network, therefore increasing VoIP quality.

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AutoQoS Configuration

Sean Wilkins covers AutoQoS VoIP and AutoQoS for the Enterprise, which allow for automatic quality of service (QoS) configuration on your network. While AutoQoS VoIP requires very little configuration in order to implement, AutoQoS for the Enterprise is split into two separate configuration phases: a discovery phase, and a generation & installation phase.

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Analog Voice Port Configuration

Analog voice port configuration on a VoIP network by Sean Wilkins. Includes configuration details for the three main voice port types: Foreign Exchange Office (FXO), Foreign Exchange Station (FXS), and Ear and Mouth (E&M).

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QoS Classification and Marking Configuration

Sean Wilkins discusses QoS Classification and Marking configuration in relation to VoIP Quality of Service implementation on Cisco equipment. This marking is used by devices on the network to prioritize high priority over low priority marked traffic. Also covered are Differentiated Services Code Point (DSCP) values, Per Hob Behaviors (PHB) and Modular QoS Command Line Interface (MQC).

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Congestion Management Configuration

Expanding upon VoIP Quality of Service (QoS) basics, Sean Wilkins discusses congestion management techniques and queue configuration. Includes popular queueing mechanisms like FIFO (First-In First-Out), WFQ (Weighted Fair Queueing), Priority and Custom Queueing to reduce the effect that network congestion has on the flow of traffic across the network.

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Basic Dial Peer Concepts and Configuration

Explanation of VoIP dial peer configuration options by Sean Wilkins, including different ways to utilize the dial peer functionality that is built into Cisco IOS.

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