Sean Wilkins

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.

Networking Consultant Sean Wilkins takes a look at the Enhanced Interior Gateway Routing Protocol (EIGRP), how its metric is calculated, and how this information can be used to ensure that traffic is taking the path that is expected.

In this post, Networking Consultant Sean Wilkins looks at the Open Shortest Path First (OSPF) routing protocol, how its metric is calculated, and how this info can be used to ensure that traffic is taking the path that is expected.

Are you looking for a fun and easy way to learn how to master IP subnetting? In this post, Networking Consultant Sean Wilkins shows one way to master the art of subnetting, by using Cisco’s Subnet game.

Sean Wilkins returns with his series on Cisco Unified Computing System. In this post, Sean discusses UCS Service Profiles. Sean covers the basic principles behind why profiles are used and what settings and configurations they help control.

Following up on his Cisco UCS Manager Overview from last week, Sean Wilkins dives into the hardware that drives Cisco UCS. This post provides a nice overview for the different components that are used with UCS and their capabilities and options.

Sean Wilkins gives a brief overview of Cisco’s Unified Computing System (UCS) Manager. Sean explains how UCS brings together many of the psychical managerial components into one integrated (unified) solution which can help cut costs.

In today’s post, Sean Wilkins discusses OSPF redistribution and briefly covers some issues that one must keep in mind when configuring redistribution within OSPF. With these things in mind, you can go a long way towards ensuring that your network will continue to run smoothly and correctly when utilizing OSPF redistribution.

Sean Wilkins continues his discussion on OSPF Area Troubleshooting. In today’s post, Sean reviews link state advertisement (LSA) types and also reviews the different stubby areas and what they allow and deny. From there, Sean dives into common stubby area problems and how they can be resolved.

In this post, Sean Wilkins discusses OSPF areas. Sean first discusses what OSPF areas are and the different types of OSPF areas. From there Sean discusses different issues that can arise with OSPF area setups and how to troubleshoot them.

The IPv4 to IPv6 transition is upon us but the undertaking is not one that can take place with the flick of a switch. In this post, Sean Wilkins takes a look at the options available to organizations for an efficient and headache free transition. Which method is best for you?

IPv6 is largely about adding more IP capacity as we are quickly running out of IPv4 addresses to allocate, but IPv6 also offers different and better functionality. In this post, Sean Wilkins describes the different IPv6 address types: Unicast, Multicast, and the new Anycast.