>>955425 (OP)
>distinguish switch-router and plain routers (where they still used in 2000?), which are same fucking thing from routing standpoint and differ only in performance characteristics
>no mention of actual switches
>no word how routing is done
>proxy searches for domains in TCP packets
>ping after port-based firewall filtering
>recycling packets??
>supplementary material in my uni lecture
Hope it was supposed to be ironic 'lol look at that'.