Subject: Re: dhcpd(8) _cannot_ be completely disabled on an interface
To: Michael Richardson <mcr@sandelman.ottawa.on.ca>
From: Andrew Brown <atatat@atatdot.net>
List: tech-net
Date: 01/12/2002 16:02:19
>    der> They are?  I have trouble thinking of any situation not contrived for
>    der> the purpose where 64K interface creates occur without an intervening
>    der> reboot.  Where did you find such?  It's probably worth preserving as a
>    der> stress-test case....
>
>  Any box with a non-trivial network connection running PPPoE as termination
>for dialup/DSL customers. An OC-3 worth of 1Mb/s channels is 100
>channels. Average uptime for a Windoz box in use being two-three hours, 
>that is 81 days of uptime.
>
>  I know of vendors putting NetBSD in their systems that expect more than 81
>days of uptime.
>
>  Since these ABIs tend to be hard to change, please burn the 2 bytes and
>make it u_int32_t.

does the interface pppoe0 get destroyed and created at each line drop,
or just go up and down?  it's only destruction and creation that cause
the interface index to get bumped...

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