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But is this within or external to the router. After SNA and token ring, the Ethernet-cum-internet decentralised not just the net but also the router, switch, cable up to internet (local : ospf and ...).

Not sure why it seems to talk about the router. Even a small floor network does not run on one router. But panels, switches, routers, ups ... abd that is in 1990s to now.

The internal architecture ... is that so important. (Some big router-switch with many cards may be. But that is not the only one approach.)




Everything that I talk about is internal to the router.

Some of us think that the architecture of big routers is plenty important. It's those routers that hold up the backbone of the Internet and a whole lot of other places.

Yes, you can build distributed routers. The supernode that I discuss is one such example. But that doesn't mean that you want to build it with a bunch of tiny home routers that you bought off the shelf at Fry's. You still want to start with fairly chunky building blocks, otherwise you end up suffering from a lot of inefficiencies just interconnecting things. Jonathan Turner calls this the 'small switch penalty'.


I don’t understand all that much about the finder details of high-capacity networking, but it sure is a fascinating and important concept! The sheer volume of packets that are sent every day over the world is nothing but amazing.

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