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doc: Add explanation of how auto-connect works

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Denis Kenzior 2016-02-09 18:38:09 -06:00
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When IWD is searching for a network to connect to automatically, the following
factors are taken into account:
- Signal strength level
- Is the network a legacy WPA network, or RSN compliant? More weight is given
to networks that are RSN compliant.
- Is the network Open or requires authentication? More weight is given to
networks that require authentication.
- Does the network support privacy in its Capability Information field? More
weight is given to BSSes that do.
- Maximum rate of the network
- Channel Utilization (from BSS Load) of the network
- Has the network been connected to before and if so, how long ago? Networks
that have not been connected to previously are ignored for auto-connect
purposes.