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There were minimal grammatical and spelling mistakes in the files which I corrected as documentation proof reading. Also added information about few ipsec vpn parameters.
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47 lines
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.. _serial-console:
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##############
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Serial Console
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##############
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For the average user a serial console has no advantage over a console offered
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by a directly attached keyboard and screen. Serial consoles are much slower,
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taking up to a second to fill a 80 column by 24 line screen. Serial consoles
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generally only support non-proportional ASCII text, with limited support for
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languages other than English.
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There are some scenarios where serial consoles are useful. System administration
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of remote computers is usually done using :ref:`ssh`, but there are times when
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access to the console is the only way to diagnose and correct software failures.
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Major upgrades to the installed distribution may also require console access.
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.. cfgcmd:: set system console device <device>
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Defines the specified device as a system console. Available console devices
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can be (see completion helper):
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* ``ttySN`` - Serial device name
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* ``ttyUSBX`` - USB Serial device name
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* ``hvc0`` - Xen console
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.. cfgcmd:: set system console device <device> speed <speed>
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The speed (baudrate) of the console device. Supported values are:
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* ``1200`` - 1200 bps
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* ``2400`` - 2400 bps
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* ``4800`` - 4800 bps
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* ``9600`` - 9600 bps
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* ``19200`` - 19,200 bps
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* ``38400`` - 38,400 bps (default for Xen console)
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* ``57600`` - 57,600 bps
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* ``115200`` - 115,200 bps (default for serial console)
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.. note:: If you use USB to serial converters for connecting to your VyOS
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appliance please note that most of them use software emulation without flow
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control. This means you should start with a common baud rate (most likely
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9600 baud) as otherwise you probably can not connect to the device using
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high speed baud rates as your serial converter simply can not process this
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data rate.
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