• rmuk@feddit.uk
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        20 days ago

        Exactly this. With VLAN tagging you can plug that single 2.5Gb connection into a 48-port managed switch and effectively have up to 47 different NICs if that’s what floats your boat. They’d all share the 2.5Gb but that’s still more than a lot of small networks need.

        • Avid Amoeba@lemmy.ca
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          20 days ago

          In a shared 2.5Gb scenario as you describe, would fully pegged upload/download be 1.25Gb each? Could it do 2.5Gb in both directions simultaneously? Assuming no compute bottlenecks.

          • rmuk@feddit.uk
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            19 days ago

            It’s full duplex so it’s 2.5Gb each way simultaneosly. Most NICs support half-duplex but I don’t know of any good reason to use that. I used to have a BananaPi based router that could comfortably saturate it’s gigiabit interface. I assume there’s some kind of offloading going on.

      • Mad_Punda@feddit.org
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        20 days ago

        Well the router I use today has 4 ports (and a built in modem for that matter, but I don’t use that).
        I understand I can use a switch, but that means I’ll have to buy a switch in addition to this to replace my router.

        • Draghetta@lemmy.world
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          20 days ago

          Which is not a bad thing, it’s more unix if you will. Router is a router, switch is a switch.

          You provide your own switch and you choose the features: port count, port speed, vlan, etc — or get a 10€ switch if you don’t care. When a port breaks you replace the switch alone.

          Multifunction tools are generally a tradeoff where you buy immediate convenience and pay with more ewaste and more money in the long run.

        • ColeSloth@discuss.tchncs.de
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          20 days ago

          Yet for 98% of everyone else, you either need more than 4, or you only need one or two. You got a house full of proffesional gamers that can’t have an extra 15ms of latency?