why does dail-up or pppoe access always has session-timeout ?

[Valdis.Kletnieks at vt.edu (Valdis.Kletnieks at vt.edu)]

On Thu, 30 May 2013 09:10:21 -0000, Joe said:
>   a question  obsessed me for a long time.  "why my  pppoe connection to
> internet has a max session time, even if every thing goes ok? "

>From a provider's point of view, forcing a connection to re-establish itself
every few days means that if you ever have to roll out a change, you don't end
up with *That* *One* *User* who stays connected for weeks or even months with
the old parameters.

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