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svn:author
V 2
kp
K 8
svn:date
V 27
2020-06-01T19:26:16.137302Z
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V 386
bridge tests: Avoid building a switching loop

Enable STP before bringing the bridges up. This avoids a switching loop,
which has a tendency to drown out progress in userspace processes,
especially on single-core systems.

Only check that we have indeed shut down one of the looped interfaces

PR:		246448
Reviewed by:	melifaro
Differential Revision:	https://reviews.freebsd.org/D25084

END