While working with Cisco ASR 1000 series routers, you may find yourself in a situation where the router (or a Route Processor, in the case of modular routers) will only boot into ROMMON mode: Init...
While working in ROMMON mode of Cisco’s ASR 1000 series of routers, you may encounter the Please reset before continuing or Please reset before booting error messages that prevent most commands fro...
Network operators who embrace automation to streamline their daily work often adopt software development best practices to ensure the applications they develop are stable and of the highest quality...
A common issue seen when attempting to SSH into a network device running Cisco’s IOS or IOS-XE operating system using an OpenSSH client is as follows: christopher@ubuntu-playground:~$ ssh 192.168....
A common issue seen when attempting to SSH into a network device running Cisco’s IOS or IOS-XE operating system using an OpenSSH client is as follows: christopher@ubuntu-playground:~$ ssh 192.168....
Note: If you are not familiar with the concepts of the data plane and control plane on network devices, I highly recommend reviewing my Understanding the Data, Control, and Management Planes of Net...
Networking jargon can be context-sensitive, and many terms are often used interchangeably in conversation. In this article, I will define terms often used when discussing the physical layer of Ethe...
Authoring technical content is a skill. Like any skill, the only way to improve it is to practice. An easy way to author and share technical content is to create a blog and share your technology ex...
Linux hosts can bridge two network interfaces together such that they behave link a normal Ethernet link. This means that traffic entering one network interface will exit the other network interfac...
iPerf3 is a popular network performance measurement and testing tool that can be easily installed on most Linux operating systems. This article will walk through how to install iPerf3 on Linux host...