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...

DHCPv6 on Juniper SRX-110 - Progress

Last year I posted about my frustrations with getting the DHCPv6 client working on a Juniper SRX-110. I am pleased to report that Juniper has now released 12.1X46-D10.2, which resolves...

SDN App Stores - My Network is not a Phone

I’ve been thinking a lot about HP’s SDN App Store approach. In case you missed it, HP’s vision is to deliver an App Store for SDN applications, similar to Apple’s...

SiteHost - Top-Notch Service

We needed a hosting provider that could deliver a platform to run a Virtual Appliance on. The issue was that we needed a reasonably high level of RAM, and we...

HP-RAMS Relationship Ending

HP is discontinuing support for HP Route Analytics Management Software, aka RAMS. RAMS is an extremely powerful system for managing large networks, but it always struggled to fit in with...