A class eligible for configuring if a client's TLS mode is opportunistic.
If it's not None, then mux will negotiate with the supplied level whether
to use TLS or not before setting up TLS.
If it's None, it will not attempt to negotiate whether to use TLS or not
with the remote peer, and if TLS is configured, it will use mux over TLS.
Note
opportunistic TLS is not mutually intelligible with simple mux
over TLS
A class eligible for configuring if a client's TLS mode is opportunistic. If it's not None, then mux will negotiate with the supplied level whether to use TLS or not before setting up TLS.
If it's None, it will not attempt to negotiate whether to use TLS or not with the remote peer, and if TLS is configured, it will use mux over TLS.
opportunistic TLS is not mutually intelligible with simple mux over TLS