Cisco Nexus

November 6, 2019

Cisco Nexus Show Commands for High CPU Usage

I ran these on our Nexus 7K switches.
July 1, 2019

Basic Understanding of Over-Subscription

Oversubscribing is basically when you go from many ports to fewer ports. So for example, a switch has 48 ports on it but only two uplinks. […]
May 19, 2019

XenServer Active/Active Load Balancing

Below is something I wrong to try and explain how the active/active XenServer load balancing works.
June 12, 2018

Cisco Nexus IOS Upgrade (Disruptive/Non-ISSU)

This will upgrade from 5.1 to 7.3. Unfortunately because the IOS is so far back, you can’t use ISSU.
October 28, 2015

Cisco TACACS+ Configs for ACS (Nexus, ASR_IOS-XE, IOS, ASA, Wireless)

Below are some examples pulled from a working configuration. Enjoy!
September 22, 2015

Cisco Fiber Troubleshooting with DOM

Cisco supports DOM (Digital Optical Monitoring) which is an industry standard to capture real time operating stastics such as:
September 18, 2014

Type-2 consistency status = failed

Here’s something you can come accross. When you do a “sh vpc“, you’ll notice that your Type-2 consistency status is failed on both Cisco Nexus 7000’s […]