HP Neoware e140 - Thin Client User Manual page 234

IBM 5250 Display Emulation
218 Setup Options
DEVNAME
This enables you to enter the name of the device which the server
will be requested to assign to this Telnet session.
You can return the local host name by entering %s after the device
name. To return the user name, enter %u after the device name. You
can specify how many characters of the name is returned in each
case. For example, %.3s will return the first three characters of the
local host name, and %-.3s will return the last three characters.
To automatically assign a new device name for each successive
connection, either enter %dN% after the name, where N is a
decimal value, or %xN%, where N is a hexadecimal value. Each
time the host requests the device name a counter will be incremented
modulus N and substituted into the device name.
For example, TEST%d4% will give TEST1 on first connect,
TEST2 on second, TEST3 on third, TEST0 on fourth, TEST1 on
fifth and so on.
TEST%d100% will give TEST1 on first connect, TEST2 on
second, ... TEST99 on 99th, TEST0 on 100th, TEST1 on 101st and
so on.
These values are preserved over power off, so the first connection of
any given power on may not be TEST1. Assume that the start point
is random. In addition there is a single counter for the unit so concur-
rent sessions will start from subsequent values. For example, if ses-
sion one uses TEST1 then session two will use TEST2.
Where a device name collision occurs (i.e. the device name is
already in use on the host) the host will ask again for the device
name during the same connection. In this case TEST1, TEST2, ...
may all be tried in one connection until the host accepts one, or all
possibilities have been tried. In the latter case the same name is sent
twice in succession to indicate to the host all names have been tried.
If concurrent 5250 sessions are started before a previous session has
negotiated an acceptable device name, it is possible that the two ses-
sions will access the counter simultaneously and not all possible
names will be tried by each session. This should not cause a problem