A variety of other daemons and utilities also exist for managing the switch (particularly from the perspective of OpenFlow).

还存在各种其他的守护程序和实体，用于管理交换机(特别是从openflow方面)。

youdao

Switch utilities for a better deal.

BBC: NEWS | UK | Magazine | Money worries in your 20s? There may be a silver lining

The fuel that powered the U.S. from the industrial revolution into the iPhone era is being pushed aside as utilities switch to cleaner and cheaper alternatives.

MSN: Coal producers find themselves in a hard place

This spending is discretionary, the authors note, because utilities can just switch to gas instead.

FORBES: Frack Gas Not Likely To Displace King Coal, Study Suggests