Installation guide

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set realport
Purpose Configures and displays RealPort-related settings.
Required permissions For products with root and non-root (normal) users, the root user can
configure RealPort settings. The normal user can display RealPort settings.
Syntax Configure RealPort settings
set realport [keepalive={on|off}]
[exclusive={on|off}]
Display current RealPort settings
set realport
Options keepalive={on|off}
Enables or disables sending of RealPort keepalives. RealPort keepalives
are messages inside the RealPort protocol, sent approximately every 10
seconds, to tell whoever is connected that the connection is still alive.
RealPort keepalives are different from TCP keepalives, which are done at
the TCP layer, and configurable. The default is “on.” As RealPort
keepalives generate additional traffic--several bytes every 10 seconds--this
option allows you to turn them off. RealPort keepalives may cause issues
in environments that are metered for traffic, or that do not require this type
of mechanism. In situations such as cellular/mobile wireless
communications, when you are paying by the byte, such additional traffic
is undesirable when a TCP keepalive can do the same job, and only when
the connection is idle. If you want to have the RealPort keepalive set to
“off;” consider using a TCP keepalive instead. This is because if the link is
not closed properly, you could end up with your port being “locked up”
with a dead TCP session, which is why RealPort keepalives were
implemented in the first place.