As I approach the end of the calendar year & prepare for a holiday break, I’ve been reflecting on what I’ve learned and done this year. Of course, this also leads to what I need to learn next year.I’m making a number of changes to my career next year and as part of my planning process I wrote a list of eight things I think I’ve learned in the last 20 years.
6th December 2013 Classed as: Buzz
Github project that checks a DNS entry against over 1500 DNS servers worldwide. For those times when changing the IP address of the mail server or website and you want to see how the DNS propagation in progressing. Very useful if you haven’t been able to reduce the DNS TTL time prior to the change […]
2nd December 2013 Classed as: Buzz
This is a useful looking utility on making the network on a windows system perform badly so that developers can test their applications over poor network connection. I think I can use this to make application performance the developer’s problem (instead of mine after the app is deployed). Leveraging the awesome WinDivert library, clumsy stops […]
2nd December 2013 Classed as: Response
The report shows strong evidence that very specific prefixes were hijacked and diverted to countries where legal jurisdiction could be reasonably assumed to be weak. Renesys does not say which prefixes were hijacked but consider hijacking a corporate PI space and capturing a copy of all the email to & from a large company (email […]
30th November 2013 Classed as: Bookmarks
Collection of useful, relevant or just fun places on the Internets for 28th November 2013 and a bit commentary about what I’ve found interesting about them: Fonts | Simple Font Organizing – MAC OS X App that makes selecting fonts easier by providing font previews. USD$9 in the App Store. Scroll through a grid […]
24th November 2013 Classed as: Musing
Many people are noticing that part of the Cisco ACI announcement includes mention of 40GbE BiDi optics where a 40GbE SFP needs only two MMF fibre cores for 40GbE connectivity. It’s worth noting that all vendors will also ship BiDi optics in the near future. For example, Arista is promoting a single mode 40G BiDi […]
It’s becoming clear that 2014 is going to see a significant push and adoption on Private Cloud supported by marketing and technology from incumbent vendors who are starting to lose substantial revenue. Public cloud companies don’t spend with Cisco, IBM, HP or other recognised manufacturers and it’s time for them to defend their turf and stop the revenue bleeding away.
I use the term “Finger Banging the Network” to describe the process of configuring network devices at the CLI. Note that “Finger Banging” is a polite conversational version of the original term “Button F**king”
VMware and Palo Alto are getting closer with a press release today that outlines how PAN will be able to transparently inject firewall services into software defined data centres.
If you have spent any time working on software licensing schemes for virtual appliances, virtual switches, virtual any-bloody-thing then you will sympathise with this.
The Cisco Nexus 9000 supports two versions of network operating system on the device. You can buy some models of the Nexus 9000 family today that run NX-OS just like the NX6K, NX7K etc and late in 2014 “NX-OS Plus” will be available. Two operating systems for the same switch isn’t new for Cisco if you remember the switch […]
The first thing I thought of when I saw this slide is that Cisco UCS will be integrated ACI in short order. It seems like the obvious competitive response to VMware ESX ability to virtualise the hypervisor. I asked the question during my briefing and got an answer that indicated that wider integration of Cisco products, including […]
I had a bit of a problem in the data centre last week. I had left my USB console adapter for the MacBook at home.
I took a couple of turns around the data centre and found a DEC VT420 terminal in a cupboard or a discard pile. Put it onto the crash cart and scrounged around for some older cables.
The look on the data centre managers face as I configured his network with the 20 year old DEC terminal ?
I was asked to explain the concept of abstraction in software and IT infrastructure to a group of people who had limited technical capability. It needed to be simple and relevant to every day people.
Here is what I came up with.
Blessay (Deep Content)
As I approach the end of the calendar year & prepare for a holiday break, I've been reflecting on what I've learned and done this year. Of course, this also leads to what I need to learn next year.I'm making a number of changes to my career next year and as part of my planning process I wrote a … [Read More...]
It's becoming clear that 2014 is going to see a significant push and adoption on Private Cloud supported by marketing and technology from incumbent vendors who are starting to lose substantial revenue. Public cloud companies don't spend with Cisco, IBM, HP or other recognised manufacturers and it's … [Read More...]
Stumbled over "AgilePorts" feature in Arista products this week: Arista’s AgilePorts technology enables the combination of four 10GbE SFP+ interfaces into a single 40GbE interface leveraging the parallel lane technology present in the 40GBASE-CR4 and 40GBASE-SR4standards. With AgilePorts, each … [Read More...]
Let me ask you a question about IETF and standards. How many do you think there are ? Many thousands or a few thousands ? Maybe a few hundred ? As of today there are more than 7000 RFCs. RFC is short “Request for Comments” and thus a proposal or an idea for a standard. An RFC is almost always … [Read More...]
The VMware versus Cisco thing is overstated. It's easy to conflate issues with all the excitement. The reality is that many customers have Cisco networks and will use VMware. They want Cisco & VMware to be partners. Customer first is corporate policy at both of these companies therefore Cisco … [Read More...]
It's becoming more acceptable for people to work from home. I'm finding that it's even expected that working at home will be more productive than being in an office (what a turnaround that is!).Now that I think about it, my last three employers over the last eighteen months did not offer me a desk … [Read More...]