1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 # 2 #
3 # LAPB Data Link Drive 3 # LAPB Data Link Drive
4 # 4 #
5 5
6 config LAPB 6 config LAPB
7 tristate "LAPB Data Link Driver" 7 tristate "LAPB Data Link Driver"
8 help 8 help
9 Link Access Procedure, Balanced (LAP 9 Link Access Procedure, Balanced (LAPB) is the data link layer (i.e.
10 the lower) part of the X.25 protocol 10 the lower) part of the X.25 protocol. It offers a reliable
11 connection service to exchange data 11 connection service to exchange data frames with one other host, and
12 it is used to transport higher level 12 it is used to transport higher level protocols (mostly X.25 Packet
13 Layer, the higher part of X.25, but 13 Layer, the higher part of X.25, but others are possible as well).
14 Usually, LAPB is used with specializ 14 Usually, LAPB is used with specialized X.21 network cards, but Linux
15 currently supports LAPB only over Et 15 currently supports LAPB only over Ethernet connections. If you want
16 to use LAPB connections over Etherne 16 to use LAPB connections over Ethernet, say Y here and to "LAPB over
17 Ethernet driver" below. Read 17 Ethernet driver" below. Read
18 <file:Documentation/networking/lapb- 18 <file:Documentation/networking/lapb-module.rst> for technical
19 details. 19 details.
20 20
21 To compile this driver as a module, 21 To compile this driver as a module, choose M here: the
22 module will be called lapb. If unsu 22 module will be called lapb. If unsure, say N.
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