Black Box ACS120 Podręcznik Użytkownika Pobierz pdf (Strona 144)

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Data Buffering

144 BLACK BOX ® Advanced Console Server

Screen 3:

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*********CONFIGURATION WIZARD*********

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CONF.NFS_DATA_BUFFERING - This parameter applies only if

users choose to remotely buffer data. This is the remote

directory name where data buffering will be written to

instead of the default directory '/var/run'. If deactiva-

vated, data buffering will be done locally.

conf.nfs_data_buffering[#] :

ALL.DATA_BUFFERING - For local data buffering, this para-

meter represents the maximum file size in bytes allowed to

be captured before it is discarded for new space. If re-

mote this parameter is just a flag to either activate (any

value greater than 0) or deactivate data buffering.

all.data_buffering[0] :

Screen 4:

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*********CONFIGURATION WIZARD*********

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ALL.DB_MODE - For local data buffering, this parameter allow

users to buffer data in either a circular or linear fashion.

Circular format (cir) is a revolving buffer file that is

overwritten whenever the limit of the buffer size (set by

all.data_buffering) is reached. In linear format (lin), data

transmission between the remote device and the serial port

ceases once the 4k bytes Rx buffer in the kernel is reached.

Then if a session is established to the serial port, the data

in the buffer is shown (dont_show_DBmenu must be 2), cleared,

and data transmission is resumed. Linear buffering is impos-

sible if flow control is set to none. Default is cir.

all.DB_mode[cir] :

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