yar da67d55463 Track interface department events and detach vlans from
departing trunk so that we don't get into trouble later
by dereferencing a stale pointer to dead trunk's things.

Prodded by:	oleg
Sponsored by:	RiNet (Cronyx Plus LLC)
MFC after:	1 week
2006-06-21 07:29:44 +00:00
..
2006-06-02 07:50:58 +00:00