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