- 256 arp limit is only an issue if the switch is doing resolution, which it typically wont be as an edge switch. the only entries it will typically ever contain will be that of any device you use to manage it, an NTP server and a router. it's not a core switch, so dont use it for routing vlanned interfaces in large networks and you wont have ARP problems. use a cisco 3560x, HP A5800 etc for intervlan routing.
- these switches do not come with a dhcp server enabled on them
- the serial interface is o/s independant
- if you 'mess' the ip - then just reset it via the console to factory defaults, or just _cmdline-mode on / 512900 and set the IP again.
- 'smart' and 'managed' switches are just marketing BS.
- you won't be buying old stock, new HP V1910's are still being made today, yes - they're just rebadged 2952's ala software restricted(and for the most part unlockable) 5120SI's
- noise, for their generation they're on par with the noise of other switches with similar feature sets. size wise - the 24/48 ports are tiny, any PoE model will be large and noisier due to the amount of heat generated.
