Configuring a Cisco DHCP IP Reservation

This topic is a common use in smaller environments but nonetheless something that is still used. Sometimes there is a need to have DHCP configured for end devices and you need a client to...

Cisco 3850 Wireless Controller – FAQ

There was a recent project I was working on where I was going to be using a Cisco 3850 switch as a wireless controller, which is a fully supported feature that is build into...

NX-OS “Write mem” Command

This is a short, but useful post. Most network administrators started learning on IOS, seeing that NX-OS is still pretty new comparatively speaking. It's sounds funny, but with the command "write memory", or "write...

Cisco TCL Ping Script

As I have been working on my CCIE lab studies, I have been using ping (like everyone else) as a way to verify connectivity between the hypothetical "sites" on a large topology for instance....

Use Third-party Transceiver on Cisco Device

Using third-party transceivers... This is one of those things that a lot of engineers run into from time to time and may need. This may happen for a few different reasons. Maybe you need...

Configuring a Nexus NTP Server

Best practice for a network environment is to have all devices synchronized with the same time. That way should you as the network administrator need to troubleshoot an issue, logs will be able to...

Cisco ISE Deployment – A Required Disk Image Was Missing

A few weeks back I was deploying an evaluation version of ISE to begin learning it for a future deployment. I went through the normal steps of downloading the Cisco provided evaluation OVA and...