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AnyConnect Syslog Troubleshooting

Article | Feb. 15, 2010

I recently was presented with the challenge of logging ALL of the pertinent connection, disconnection, and termination messages associated with the Cisco SSL AnyConnect client without overwhelming the syslog capture display with extraneous messages. This blog will br...

Quality of Service, Part 10 – Weighted Fair Queuing

Article | Feb. 12, 2010

WFQ is a flow-based method that sends packets over the network and ensures packet transmission efficiency which is critical to the interactive traffic. This method automatically stabilizes network congestion between individual packet transmission flows.

Quality of Service, Part 9 – FIFO Queuing

Article | Feb. 09, 2010

In part 8 of this blog series congestion management and its four main queuing methods were explored. This post will look at the first of four queuing methods: First In First Out (FIFO) queuing. To refresh our memories, congestion can occur anywhere within a network,...

The Importance of a UPS

Article | Jan. 25, 2010

In light of the recent tragic events in Haiti, it might be a good time to review some of the requirements for a well designed Uninterruptible Power Source (UPS) to be included in all of our critical network installations. As a CCNA, we are called upon to help maintai...

Quality of Service Part 8: Congestion Management

Article | Jan. 22, 2010

In part 8 of this series we are going to unravel the mysteries of congestion management and its four main queuing methods.Congestion is the result of many factors and can occur in many places on the network. A few of the reasons for congestion are traffic aggregation...

Routing Protocols Overview

Article | Jan. 15, 2010

Internet Protocol (IP) routing protocols have one primary goal: to fill the IP routing table with the current best routes it can find. The goal is simple, but the process and options can be complicated. Routing protocols define various ways that routers chat among th...

An Introduction to Procurement Management

Article | Jan. 14, 2010

Project procurement activities are often managed by specialists. By this I mean that the procurement department takes over responsibility for purchasing and contract management from the project manager. As a result of this separation of responsibilities, the steps and stages of procurement are often poorly understood by PMs. In this and the next few blog submissions, I will attempt to shed light on procurement activities and relate these activities to the PMI PMBOK.

Trunk Groups with Digital Ports

Article | Jan. 13, 2010

Last blog we looked at how we can use Trunk groups to ease the configuration of dial-peers and digit manipulation using analog FXO ports for an E911 solution. Now let’s take a look on how it can be used for T-1 CAS configurations and ISDN channel selection. The firs...

Trunk Groups - Why bother?

Article | Jan. 08, 2010

One aspect of Unified Communications is this concept of trunk groups.  I will discuss what they are, what benefit they can provide and how to configure them for Cisco gateways. First of all the official definition of a trunk group is “A group of trunks serving the s...

VPN Connection Process

Article | Jan. 05, 2010

There are some common misconceptions on the part of some of my students as to how VPN sessions are established from either a remote location or remote user to the ASA firewall. In particular, a “gray area” seems to be when the attributes from the tunnel group are app...