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It's interesting that this is now the insurgent, because in some sense, this looks like networking done the old way, the telco way: centralised provisioning, ai
by ajb 15y ago
It's interesting that this is now the insurgent, because in some sense, this looks like networking done the old way, the telco way: centralised provisioning, aiming for 100% utilisation, etc. The kind of thing that cisco et all were originally the small rebels against.
- jacques_chester 15y agoI was thinking the exact same thing. Google controls their own network, so they can implement a centrally-managed, circuit-based networking scheme. Telephone networks tend to use these (on a scheme called SS7[1]) because in most countries, the telephone networks were built by monopolies. It was possible to develop the entire network as a single system and thus to obtain very high efficiencies for certain use cases. Google goes a step further. What they seem to have done is married circuit-based networking with batch planning. The network itself is circuit based -- rather than each packet "finding" its own way, it can be routed end-to-end by a central plan. But the decision of what to move when can also be planned. Note the reference to "simulating a load". That's similar to what mainframe batch planning achieves. As usual, everything old is new again. [1] http://en.wikipedia.org/wiki/Signalling_System_No._7 http://en.wikipedia.org/wiki/Signalling_System_No._7
- mjwalshe 15y agoLol interesting I will have to share this with some of my old school Telco mates :-) So whats next Google reinvents x.400 and x.500 (not the special needs version LDAP)