routerjockey

BGP Essentials – The Art of Path Manipulation

Most enterprise networks use BGP to peer with their Internet Service Providers if they want to be multi-homed. Many factors come into play when determining how traffic should flow, …

Introduction to the Nexus 1000V

The Nexus 1000V is a software-based Cisco NX-OS switch that integrates into VMware vSphere 4 and operates inside the VMware ESX hypervisor. With the 1000V your virtual servers have …

OSPF Graceful Shutdown

Striving to reach that last 9? Looking for a way to increase your uptime while still being able to do maintenance on your network? Wish you could shutdown your OSPF neighbors like …

ASA v8.4

Less than a year after changing the rules with ASA version 8.3, Cisco has released a new OS version 8.4. Since I won’t be covering the release notes word for word, you can find …

IOS Embedded Packet Capture

Tired of setting up SPAN sessions? Need to do some packet analysis? Since IOS 12.4(20)T Cisco has made

Nexus Virtual Port Channel (vPC)

The Nexus 7000 and 5000 series have taken port-channel functionality to the next level by enabling port-channels to exist between links that are connected to different devices. …