automation, networking, worklife
Big Switch Chaos Monkey Network Testing
Whenever you build a complex system, you need to test that it works as expected, including properly handling failures. It’s easy enough to do simple component failure testing, but harder to...
12 Dec 2014
Operations Manager to OMi Migration Path
HP has finally announced a migration path for Operations Manager to OMi. It’s about time too. This looks like a good path. If you want to stick with HP Software for managing...
09 Dec 2014
Christmas Change Freeze - Good or Bad?
We’re approaching Christmas, and for many of us, that means we’re about to enter an extended change freeze. This means an extended period when we shouldn’t change anything, hoping to improve stability. ITIL Change Management...
07 Dec 2014
War Stories: Unix Security
This article is Part 8 in a 12-Part Series. Part 1 - War Stories: Loops that Permanently Broke the Network Part 2 - War Stories: Switches Lying about Duplex Mismatches...
27 Nov 2014
Outsourcing is complex, and there are lots of ways it can go wrong, or simply fail to deliver. I’ve put together a list of things that I see going wrong...
25 Nov 2014
Juniper SRX-110H EoL
Somehow I missed this when it was announced, but the Juniper SRX-110H-VA is End of Life, and is no longer supported for new software releases.
23 Nov 2014
Wipebook - A Portable Whiteboard
It is a stereotype, but engineers really do like whiteboards. Problem is, you can’t carry one around with you. Plus there’s still a few unenlightened employers who don’t provide whiteboards....
19 Nov 2014
iRules/Tcl - Watch the Comments
It’s pretty common practice to ‘comment out’ lines in scripts. The code stays in place, but doesn’t get executed. Perfect for testing, when you might need more debug output, or you want...
18 Nov 2014
Complexity vs Security
Many of the ‘security’ measures in our networks add complexity. That may be an acceptable tradeoff, if we make a meaningful difference to security. But often it feels like we...
17 Nov 2014
War Stories: Cursed VLANs
This article is Part 7 in a 12-Part Series. Part 1 - War Stories: Loops that Permanently Broke the Network Part 2 - War Stories: Switches Lying about Duplex Mismatches...
16 Nov 2014
Ops Work vs Project Work
There’s a constant tension between delivering new services, and running the existing services well. How do you figure out how to prioritise work between Operations tasks and Project work? Skewing...
15 Nov 2014
Years ago a wise engineer gave me these rules for meetings:
15 Nov 2014
HP IMC (26)
HP Master ASE (8)
HP NNMi (6)
Routing & Switching (62)
Open Source (2)