[p2p-hackers] DHTs in highly-transient networks

[Salem Mark]

Hello,

I have read in several papers that it is unlikely that the integrity of the 
DHT can be maintained where there is a high node or link failure rate 
without significant message transmission overhead. In other words, it is 
mentioned that, in "highly transient networks", where the number of nodes 
appearing and disappearing are very high, maintaining the DHT becomes hard 
and introduces considerable overhead.

I am trying to find out what exactly "highly-transient" means. A file 
sharing network like Gnutella, seems to be highly transient, where peers 
join/leave the network frequently. Could somebody elaborate on this? is 
there a node departure/arrival/failure rate (per sec? per min?) that 
identifies "highly-transient" networks ?

Thanks

- Salem

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