Intermec WA21 System Manual page 145

MobileLAN access WA2X System Manual
Global RF Parameter Descriptions
Parameter Explanation
Perform Determines how the access point will handle the conversion of
RFC1042/DIX RFC1042/DIX frames that are received on its radio ports.
Conversion
Check this check box if the frames that are received and have a
protocol type equal to a value in the "RFC1042 types to pass
through" list are forwarded without conversion. If the frame has
a protocol type that is not found in the list, it will be converted
to DIX format before it is forwarded.
Clear this check box if the frames that are received are forwarded
without conversion; that is, when a SNAP frame is received from
a radio with an OUI (Organizationally Unique Identifier) equal
to 000000, it will be forwarded without conversion.
S-UHF Rfp Specifies the largest data frame that can be transmitted without
Threshold
reserving air time. Air time is normally reserved to help prevent
collisions with other transmitters; however, when the amount of
(S-UHF radios only)
data is small enough, sending the data may be more effective
than creating the reservation.
S-UHF Frag Size Specifies the largest data frame that can be transmitted without
fragmentation. On certain radios, fragmentation does not occur
(S-UHF radios only)
unless the radio detects interference. Larger frame sizes can
improve throughput on a reliable connection, while smaller
frame sizes can improve throughput on a poor connection.
902 MHz Frag Size Specifies the largest data frame that can be transmitted without
fragmentation. On certain radios, fragmentation does not occur
(902 MHz radios
unless the radio detects interference. Larger frame sizes can
only)
improve throughput on a reliable connection, while smaller
frame sizes can improve throughput on a poor connection.
S-UHF/902 MHz Specifies the amount of time that a wireless end device stays
Awake Time awake when radios are inactive. A sleeping device is less
responsive to radio activity; however, the longer a device is kept
(S-UHF and 902
fully awake, the larger the drain on the battery. You should set a
MHz radios only)
device to stay awake long enough to receive an expected reply to
a transmission and short enough to reduce power consumption.
The awake time can be set to a number from 0 to 250 tenths of a
second.
RFC1042 Types to If the RFC1042/DIX Conversion field is Enabled, this
Pass Through
parameter specifies values for protocol types that are to be passed
without conversion. The list includes the Apple Talk protocol
(802.11g, 802.11b,
type, value 80F3.
or 802.11a radios
only) Values entered in this parameter represent the protocol types of
frames that will be passed without conversion to DIX format.
Chapter 5 — Configuring the Spanning Tree
131