Cisco

Does your Cisco VTP configuration need an SOS? Sean Wilkins tackles Cisco VLAN Trunking Protocol (VTP) troubleshooting issues.

IP Security got you down? Sean Wilkins walks you through the basic steps of configuring IPSec direct encapsulation on Cisco devices.

Once you obtain a basic understanding of IPv6, the next logical step is to test out the different capabilities that exist within Cisco equipment and IOS. In this article, Cisco Professional Sean Wilkins explains the configuration of IPv6 addressing on a Cisco IOS device.

Sean Wilkins explains how to implement a first-hop redundancy protocol, using Cisco’s Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP), and Gateway Load Balancing Protocol (GLBP). This article gives an overview of these protocols and describes how they differ.

A system can only run efficiently if it’s set up properly. In this post, Sean Wilkins discusses Enhanced Interior Gateway Routing Protocol (EIGRP) neighborship issues and how to troubleshoot and solve these problems.

In this video post, Joe Rinehart of TrainSignal explores Border Gateway Protocol Troubleshooting techniques to four of the more common issues that can arise on your BGP. Joe covers neighbor relationship problems, route advertisement issues, routes missing from the table, and address summarization problems. A great post for anyone that is going to take the Cisco CCNP Route exam.

In this post we briefly discuss Cisco’s newest network monitoring software. Flexible NetFlow offers a richer and deeper insight into network traffic including visibility of all Layers from 2 through 7 as well as deep packet inspection.

In this video post, Josh Stephens, Head Geek at SolarWinds, explains what NetFlow is and why all network engineers need to be using it. NetFlow offers a wide range of features that allow easy monitoring and analysis of network traffic through ordinary routers and switches.

Sean Wilkins returns for his second CCNP TSHOOT exam prep article. In this post, Sean discusses basic trouble shooting procedures by providing a nice step-by-step outline from the start, defining the problem, to actually solving the problem. Like his previous post on troubleshooting techniques, this is a great article for anyone looking to pass the CCNP TSHOOT exam.

There are several approaches and techniques that systems are troubleshooted and they can all work well. Which one you chose can come down to personal preference or be dependent on the nature of the issue. In this article, Sean Wilkins goes over several of these approaches. This is a great article for those about to take the CCNP TSHOOT exam.