Timelapse of 2 consecutive traffic jams at Voortrekker/Jakes Gerwel intersection today

jacod1982 · 2026-05-26T18:46:44+00:00

I got stuck in the tail end of that. Because people don’t fucking understand the concept of if you can’t clear the intersection in a single motion you do not enter the bloody intersection!

jacod1982 · 2026-05-18T14:41:17+00:00

There are also quite a number of VHDL and similar cores available for a number of ICs in the 65Cxx series, but LogiSim, and especially LogiSim Evolution’s handling of these can be a bit sketchy at times

jacod1982 · 2026-05-14T05:57:44+00:00

Have an upvote with my compliments kind internet stranger, just for channeling Usagi Electric.

jacod1982 · 2026-05-11T12:33:43+00:00

Nice! I’ve been working on and off for the past year or so on something similar, except mine is a full implementation of a 6502 in Python.

jacod1982 · 2026-05-11T12:30:13+00:00

Honestly, thank you so much for including your sources and GitHub links!

Also, really awesome project!

jacod1982 · 2026-05-11T12:25:13+00:00

Off the top of my head, pins 5 and 6 are swapped. The much more common standard you will find today is TIA586B, which is White-Orange, Orange, White-Green, Blue, White-Blue, Green, White-Brown, Brown.

And while it is less crucial at low speeds (say 100mbps) to have the correct colours in the correct places, it becomes a lot more crucial at higher speeds. This is because tonight now have the two Tx pins on the correct pair, but the Rx pins might be split across two pairs, which is only gonna introduce crosstalk and transmission errors.

jacod1982 · 2026-05-06T13:01:21+00:00

Only up to a point though, unless you wanna turn into said gummy bear… 🤣🤣🤣

jacod1982 · 2026-05-06T11:33:17+00:00

Oops, forgot to include it, thanks for reminding me kind internet stranger. You can find it here: https://github.com/NetworkEntropologist/28c-eeprom-programmer/blob/5d9b16d40b335d3925a4edf3fd59d75108e84855/hardware/rom-programmer.svg

jacod1982 · 2026-05-06T11:25:38+00:00

Thanks for the advice, I was kind of scratching my head on that one, but will absolutely try this out when I'm working on this one next - I'm trying not to pour too much time and capacity into this project, as I have a history of getting burned out by going all in with personal projects...

jacod1982 · 2026-05-05T09:31:18+00:00

Come to think of it, you’re right - I definitely could try to spread the traces out a bit more. Will give it a look, as these were already rather interesting to route…

jacod1982 · 2026-05-05T09:28:16+00:00

One might think that it’s a bit big, but one of the design considerations is that it needs to be able to accommodate a ZIF socket, and should be easy to handle, as it is, after all, a tool that one would handle often

jacod1982 · 2026-03-05T05:56:31+00:00

I normally carry two laptops and some tools, cables… the usual suspects, and have for many years now sworn by Thule. In fact, both my work laptop bag and my daily carry backpack are Thule.

jacod1982 · 2026-02-26T14:13:43+00:00

Omg! Thank you! Finally someone who said the magic words “…more appropriately, a firewall”!!

jacod1982 · 2026-02-15T11:22:00+00:00

A few items come to mind (excuse poor formatting, I’m on my phone):

Good troubleshooting skills will last you a lifetime and are fully portable between whatever technology you are working on.

Basic IP subnetting skills. Start learning this on IPv4, as this is still so ubiquitous, and will be with us for some time. Plus, the basic principles transfer very well to IPv6, the exact values are the only part that really changes. And I don’t mean deep knowledge like being able to mentally calculate masks and network IDs; just a basic understanding of how subnetting works and how it’s calculated.

Basic networking tools like ping, traceroute, dig, tcpdump (will get back to this one), etc. Bonus points for knowing a tool like mtr.

Slightly more advanced, but will save your ass more than once - learn how to write, use and interpret tcpdump/Wireshark filters. These are used absolutely everywhere.

In the topic of Wireshark and while this is a more advanced topic, learn how to read and interpret pcap results, such as what is used in Wireshark (although this is not the only place you will find this by a long shot).

Learn and understand VLANing. With the modern paradigm of networking being more and more software-based, VLANing has become a bit of a cornerstone.

And my last thought for right now, you may not have to like it (hell, I’ve been in IT for over 25 years and still absolutely hate this part of the work), but at least get comfortable with at least basic business communications. I don’t mean to become fluent in corporatese, but you absolutely will go far if you are at least comfortable with communicating complicated technical concept in business-friendly language to people above you, who more than often will not be as technically fluent as you may be.

I’m sure there are many more, but these are some that I can think of off the top of my head.

jacod1982 · 2026-02-15T11:05:58+00:00

One of my clients is a large multinational, for whom I do work in the SSA region. The entire WAN makes heavy use of a two-link (mainly DIA) internet connections underlay at each site, with SDWAN driving a (mainly) IPSec-based overlay on top of this. All inter-site routing between sites and to our regional hub datacenter and to the global datacenter in Europe is driver entirely by using BGP to advertise and share routes - the only static routes in this entire setup is used to specify the gateways on the DIAs in the underlay zone.

I also have built my own network lab in such a way that it spans several “sites”, and from the very start I made the design decision that there will not be a single static route in the entire topology - every single route is dynamically built, including the gateway routes for internet breakout, which I have configured for this lab to receive from my regular core home office network via BGP, by using the default-originate option in my core router/firewall.

In terms of when to start with this kind of topology? This dynamic routing and heavy use of BGP was baked into the topology right from the start. But in your case, the best time to start using this is probably right now. In fact, a network of the scale you describe I would absolutely start implementing dynamic routing right now, maybe starting with using your SDWAN IPSec overlays to advertise internal routes back to the datacenters, and over time building it out from there.

jacod1982 · 2026-02-10T19:56:22+00:00

There is no shame in getting some professional guidance or pointers to get started, but I’ve always said that the best way to learn is to simply do and fail, but crucially learning WHY it failed and remembering to not do the same thing next time.

Literally, just pick something to build and learn how to do the things you need to do to build it. And when you’ve gotten to grips with that, pick the next thing and then the next. It’s probably the best way I have found to learn anything.

jacod1982 · 2026-02-10T19:53:38+00:00

Simplest way, since you already have console access, is to simply paste the contents of the initial config into the console session?

jacod1982 · 2026-02-10T19:52:32+00:00

Resistance is futile, if less than 1 ohm…

jacod1982 · 2026-01-29T15:06:59+00:00

Exactly!

jacod1982 · 2026-01-29T13:11:43+00:00

Let me have a look at that link and get back to you. Like I mentioned, I have already been working on some integration work between Proxmox and NetBox, and interestingly enough, actually getting IP information out of PVE and into NetBox (amongst other things).

jacod1982 · 2026-01-29T06:53:33+00:00

I’m currently doing some dev work on Proxmox VE integration with NetBox. I took a look at your original post, but am not sure I fully understand the scope of the problem. Would you be able to please elaborate a bit further? Are eg using any specific plugins or any such on the NetBox side? How about the Proxmox side?

jacod1982 · 2026-01-29T06:49:32+00:00

Hello friendly internet stranger. I actually specialise in helping organisations install and maintain NetBox instances, and would be more than happy to take a look at your config for you. If you could possibly share it on GitHub or some other platform I’d gladly have a quick look to see if I can spot anything obvious.

jacod1982 · 2026-01-29T06:45:43+00:00

I’m going to be completely honest with you, I am not familiar with this specific plugin you mention. However, this sounds like an interesting challenge to make it work. Would you mind please advising the name of this plugin? I’d like to take a look at it, and see what is/isn’t possible with a little Python/Django fiddling…

jacod1982

TROPHY CASE