User`s guide

5 - 4 Aironet Wireless Client
Forwarding by Control Character (Delimiters)
If the protocol being used over the serial connection is packet based and
each packet ends with one of a set of control characters, the delimiter
option may be used to cause the packet to be forwarded as soon as the
character is received.
You may enter up to Þve special characters. To enter printable ASCII
characters, enter the character itself. To enter unprintable characters,
you may use one of several methods:
n Line feed character: You may enter the two character string ^J
(Control J)
n Four character string: \012 (line feed is octal 12)
n Three character string: $0a (line feed if hex a).
If the parameter is empty, no forwarding based on control characters is
done.
Forwarding by Character Count (Buffer_size)
The buffer_size option controls the size of the internal character buffer.
As soon as the buffer is Þlled, the saved characters are forwarded. This
option should be left at the default value as long as timeout or control
characters are also used.
The most common case for decreasing the value is when a protocol is
used that sends a packet and expects an acknowledgment before the next
packet can be sent (xmodem). The size of the buffer controls the amount
of time a character is inside the Serial Client and adds to the delay in
getting an acknowledgment. The Þrst character received in the buffer
must wait for the buffer to Þll before it is forwarded and can be trans-
mitted out the other side. The larger the buffer, the longer the wait and
the slower the protocol runs.
From the infrastructure side, the larger the buffer the better. This means
less packets are travelling on the radio and wired infrastructure.
UCE.BK Page 4 Wednesday, February 10, 1999 12:10 PM