Re: [Anima] recursive system dependencies (Was: Re: New Version Notification for draft-trossen-rtgwg-impact-of-dlts-00.txt)

sure, e.g.
https://arxiv.org/abs/2112.06498

> First of all, blockchain is nothing and a bitcoin worths a lot
> less than a tulip bulb.
> 
> But, anyway,
> 
> Jon Crowcroft wrote:
> 
> 
>     the cambridge distributed system was an integrated programmable
>     architecture where routers (called ring-ring bridges), nameservers,
>     bootservers, fileservers, were all treated in a coherent sand
>     consistent fashion - no-one thought there was anything odd about this
>     - we even had an internet protocol (the universe data gram protocol)
>     which allowed interworking with non cambridge networks (indeed, we
>     connected several universities in the UK with satellite and later
>     land lines)...
> 
> 
> It should be noted that a recent major outage of facebook occurred
> because engineers there thought DNS, especially with anycast servers,
> were always reliable.
> 
> Though there are site local DNS servers, they configured the servers
> stop operating shortly after the site losses external connectivity,
> which made it impossible to repair the problem using DNS (I do remember
> a raw IPv4 address of my server, but, those who totally relies on DNS
> should not).
> 
> Though DNS merely requires zones have multiple servers, having them
> locally to share fate is not very meaningful.
> 
>                                                 Masataka Ohta
> 
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