NMS Primer 1: What is an NMS?

This article is Part 1 in a 7-Part Series. Part 1 - This Article Part 2 - NMS Primer 2: How Do They Work? Part 3 - NMS Primer 3:...

HP Communities - Enabling Full Post Content Email

The HP Communities forums offer email subscriptions for threads you’ve participated in, or all posts for a specific message board. By default these emails only contain the subject of the post,...

Accounting Models and Cloud Service

Everyone talks about how moving to Cloud-based services can reduce CapEx, and that you only “pay for what you need.” People seem to assume this is a Good Thing, and...

HP IMC: Troubleshooting Device Backup Problems

HP IMC is great at backing up your switch configurations, but it can be very frustrating when it doesn’t work. Here’s a list of steps I go through when debugging...

OpenFlow implications for network monitoring

I’ve been reading more about OpenFlow recently, and something that was pointed out to me was that OpenFlow offers features that could give us deeper insights into our traffic flows,...

Should I Monitor My Service Provider?

How much monitoring should I do for services that I’ve outsourced? This question comes up frequently with my clients. They’ve paid someone else to manage a service for them, and...

Service Timestamps - make your log timestamps readable

The default logging style for Cisco IOS-based devices is to insert the system uptime in the log entry. This makes it basically useless. Here’s some typical log output:

Help Me Do Business With You

A good customer of mine needs to replace their Service Desk system. Having a fair idea of their requirements, I asked them if they had looked at $(insert very well-known...

How Long Before CCIE SDN?

Cisco made some announcements about SDN certifications at Cisco Live US, in June this year. These didn’t seem to get a lot of attention at the time, perhaps due to...

'Black Tuesday' - Isn't it Just Business as Usual?

Microsoft patches are released on a (mostly) monthly cycle, and other vendors have started following suit. When this first happened, people treated it like a major event. But I think...

DHCPv6 Client on Juniper SRX-110

Juniper recently released 12.1X45-D10 for the SRX-110. The key new feature for me was DHCPv6 Client support - finally! It’s still new, and buggy, and I wouldn’t rush it into...

IMC - Changing Predefined Device Model Definitions

IMC has a predefined list of over 6,000 devices. This list maps sysOIDs to devices, so when you add a new device to IMC, it will say “this is a...