Software Support - Are You Getting Value?

Companies pay a lot of money for software support. But do they always get value for it, and do vendors sometimes prolong the “supported” life of a product simply to...

Can't Start HP IMC on Linux?

I was recently asked about how to start IMC on a Linux server. After the initial installation, the system had been restarted, and now IMC wasn’t running. How to start...

HP Restricting Access to Server Firmware Updates

HP has announced that they will only provide firmware updates to customers with a valid warranty, Care Pack or support agreement. HP says:

HP Wireless Future: Reading the Tea Leaves

Recently I posted some speculation about where HP is going with their Comware and ProCurve networking lines. But what about the wireless gear? Where’s that going? As before, I have...

HP Comware vs ProCurve: Reading the Tea-Leaves

HP acquired 3Com in 2009. This added a large range of routing, switching and wireless networking to HP - but they already had existing ProCurve wired and wireless hardware. Clearly...

ScienceLogic Architecture Overview

This is a basic overview of the ScienceLogic EM7 system architecture, describing the various components, their functions, and how they can be combined or split across multiple systems. I’ve been...

War Stories: Loops that Permanently Broke the Network

This article is Part 1 in a 12-Part Series. Part 1 - This Article Part 2 - War Stories: Switches Lying about Duplex Mismatches Part 3 - War Stories: Check...

HP NNMi Licensing Changes

HP has made some changes to the way Network Node Manager (NNMi) is licensed. These changes are a Good Thing, as they address two key pain points - license calculation,...

Too Many Communities

I have come to realise that I’ve tried to take part in too many communities, and it’s getting me down. Too many forums filled with too much noise, too many...

nxlog - Convert any text file to Syslog

Recently I’ve been converting a network from an agent-based monitoring system to an agentless system. One challenge was handling custom application logfiles. Most agent-based monitoring systems make it very easy...

The HP SDN APP Store - It Might Just Work

HP has been laying out their SDN vision over the last few months. They want to develop a complete SDN ecosystem, including an Open Standards-based network that can integrate with...

Network Monitoring Design Choices - Polling Distribution

Network monitoring systems poll devices periodically, and then calculate average rates across the poll interval. Selecting the right polling interval is important - too frequently, and low-end devices can’t keep...