There aforementioned PCI-Express is to some extent feels like "Firewire done right", mainly because the frame formats are strikingly similar. On the other hand,

There aforementioned PCI-Express is to some extent feels like "Firewire done right", mainly because the frame formats are strikingly similar. On the other hand, Firewire, like pre-3.0 USB, is not truly packed-switched, but uses shared bus with TDMA-ish timeslots (and the whole mechanism of arbitration and root-election is hellishly complex).