[e2e] seeking help recalling a network term

[weigengyu]

----- Original Message ----- 
From: "Jon Crowcroft" <Jon.Crowcroft at cl.cam.ac.uk>
Subject: Re: [e2e] seeking help recalling a network term


> In missive <e715d03bb4a90c2eee0bd1707a6e4adf at cs.utexas.edu>, Chris Edmondson-Yu
> rkanan typed:
> 
> >>I know how much you like history, so here's some fun:
> 
> >>That was Donald Davies concept (who independently invented packet 
> >>switching in the UK in 1965); he used the term isarithmic, the Greek 
> >>term for "equal").
> 
> it was part of the french 1st packet switched net hop-bu-hop traffic
> management (flow, congestion and crowd control) technology.... its way
> cool and the idea has been re-invented lotsa times including in other
> areas like road-trains
>
> also bittorrent incentive matching technology is basically the same
> concept
> 
>   jon
> 

There is a set of signal lamps every 2km to control railway train go/stop here.

In telecom, SS7 networks are packet switched networks,
The SS7 messages/packets are actually controlled link-by-link  in operations.
The mechanism to prevent congestion is to keep the traffic less than 0.7 Erlang for each link.

Telephone networks works well in general.

Gengyu