Perle Systems IOLAN SCS - Manual (Page 197)

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Adding/Editing Users
Advanced Tab
Overview
The Advanced tab is used to configure those parameters that control the user session; this includes
session length, language, the hotkey used for switching between sessions, access to clustered ports,
etc.
Field Descriptions
Configure the following parameters:
Enable VJ
Compression Used for User Service PPP or SLIP , determines whether Van Jacobsen
Compression is used on the link. VJ compression is a means of reducing the
standard TCP/IP header from 40 octets to approximately 5 octets. This gives a
significant performance improvement, particularly when interactive
applications are being used. For example, when the user is typing, a single
character can be transmitted and thus have the overhead of the full TCP/IP
header. VJ Compression has minimal effect on other types of links, such as ftp,
where the packets are much larger. The
User VJ Compression option will
override the VJ Compression value set for a Serial Port .
Default: Disabled
Idle Timeout The amount of time, in seconds, before the IOLAN closes a connection due to
inactivity. The default value is
0 (zero), meaning that the Idle Timer will not
expire (the connection is open permanently). The User Idle Timeout will
override all other Serial Port Idle Timeout parameters.
Range: 0-4294967
Default: 0