Networking

In Part 1 of this two-part video post, seasoned Cisco professional Joe Rinehart takes you through step-by-step how to troubleshoot VLAN and switch problems. He discusses common general switch issues, VLAN related issues, and spanning-tree issues, as well as VLAN/switch troubleshooting techniques.

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.

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 part 2 of this two-part video series, Jason Nash of TrainSignal finishes his lesson on configuring Cisco UCS Service Profile Templates. Specifically, in this post Jason covers setting up vNIC/vHBA placement policies. This relatively new feature allows you to set up policies that determine how PCI devices are ordered on system boot-up.

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.

In this video post from TrainSignal, Cisco UCS expert Jason Nash will show you the required steps to creating a Service Profile Template in your Cisco Unified Computing System. Service Profile Templates can make it easy for you to provision many servers because it will allow you to quickly create multiple service profiles having the same basic parameters like say the number of vNICs and vHBAs.

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.