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Cake day: July 3rd, 2023

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  • Packet tracer is definitely not OSS nor free as in speech. But it is probably your best bet for something to get started with. You can go on netacad and get it for free together with the self-paced introduction to packet tracer course. I’m not trying to shrill for Cisco, they’re a soulless company that exploits their position to extort insane prices. But PT is kinda nice, IF! all you want is to build simple networks and you don’t care about being vendor agnostic or only running FOSS.

    PS: and cisco? 2900€ for a 24port l3 switch? GTFO, a mikrotik crs326 can do the same and is 200€ and it doesn’t require a DNA-center to enable licensing, why? BECAUSE IT DOESN’T REQUIRE ADDITIONAL LICENSES!!1!one!








  • Thank you for telling why I’m wrong :)

    I agree with you partly on your first point. Putin has other ways of making his fortune. BUT that doesn’t mean that he couldn’t also do this. Maybe it’s not the primary reason, but if Putin doesn’t care about Russia or the Russian people, then money could be a motivator.

    On your second point IDK though. Russia still has a pretty large black sea port in Novorossiysk to the south east of Crimea. That port is on the mainland, has a rail connection, and doesn’t rely on an explosion prone bridge. Sevastopol may be an important port, but important enough to go to war over? Besides, the black sea ports aren’t the only warm water ports west of the Urals. Not counting the unconnected port in Murmansk, on the Baltic sea there’s Kaliningrad and the three large ports near Saint Petersburg. On wikipedia’s list of largest ports in the Baltic sea, the three at Saint Petersburg are in the top four.

    So why go to war for a fifth port? Was Novorossiysk operating at capacity? I dont buy it. The war wasn’t for a path to Sevastopol alone.


  • Update: it would seem that people disagree with me, fair enough, but perhaps somebody would care to tell me what is wrong with my theory?

    Original comment:
    I’m going to try with a crazy conspiracy theory(but the crazy ones are the more entertaining ones, right?):

    Putin’s investment in the western defense industry drove the invasion of Ukraine to stimulate European NATO countries’ military investments.

    Reasoning:

    1. Russia’s actions towards Eastern NATO countries and the invasion of Ukraine could be strategic moves to encourage European NATO nations to bolster their military investments.
    2. Sweden and Finland’s potential NATO membership could further incentivize their procurement of NATO-aligned weaponry.
    3. Other Western European countries are already allocating significant resources to military investments.

    Considering Occam’s razor, is it simpler to assume Putin, heavily invested in the defense industry, initiated conflict for profit, or believe in complex internal political motives?


  • I’ve bought more crimpers than most, because my students abuse the tools. In my experience you can overall get two types of crimping tools: the cheap non-ratcheting ones like https://dk.rs-online.com/web/p/krympeaerktoj/1052153, and the more expensive ones ratcheting ones like https://dk.rs-online.com/web/p/krympeaerktoj/4726762.

    I just got a couple of the cheap ones I linked, and they’re really shoddy, despite being 20euro before VAT. If I was to buy a crimping tool for my personal use, I’d look for a ratcheting tool in the sub 50euro category. I have used a tool similar to the expensive one, and they’re really nice, I’d look for a tool with the semi circular cutout for cutting the outer layer of the cable.

    Are you just going to be mounting plugs, or will you be dealing with the sockets as well? If yes, the you’d maybe want to look at getting a LSA punching tool, depending on the model of socket.

    I don’t know your time frame or budget, but a cable tester that goes beyond just testing connectivity is worth some money. I managed to get a fluke dsp4100 for less than 100 euro as Danish navy surplus. Maybe look at getting a used older tester, unless you need to document 10 gig capability.










  • CML is one of those things that sound great, until you remember the Cisco money extraction goblins.

    Tldr on the following wall of text: what is it you can’t do in packet tracer that’s required for CCNA labs?

    I have students in my CCNA classes who are able to handle the added complexity, and I’d like to challenge them. Also I have this underlying feeling that packet tracer is the “Fisher-Price Network Simulator” … especially the new physical mode has that shape sorter toy feeling. Anyway I hope I’ve made it clear that I’m not here shilling for packet tracer.

    That was why I approached some netacad reps at a conference, about using tools like CML, GNS3, and EVE-NG for CCNA labs. While they agreed that packet tracer being a simulator, is not really in the same league as the actual emulators, one of the reps asked a very simple question. A question that I couldn’t answer while staying relevant to teaching the first two semesters of the CCNA: “what specifically can’t you do in packet tracer that is needed for the CCNA labs?”

    I’m not saying that you shouldn’t look beyond packet tracer, and the other tools are really useful down the road, so learning them is great. BUT! is it really necessary? What functions are missing? I’d be happy to help you go that route instead.