16a2e9b73SSam Ravnborg# 26a2e9b73SSam Ravnborg# LAPB Data Link Drive 36a2e9b73SSam Ravnborg# 46a2e9b73SSam Ravnborg 56a2e9b73SSam Ravnborgconfig LAPB 6*5ba0a3beSKees Cook tristate "LAPB Data Link Driver" 76a2e9b73SSam Ravnborg ---help--- 86a2e9b73SSam Ravnborg Link Access Procedure, Balanced (LAPB) is the data link layer (i.e. 96a2e9b73SSam Ravnborg the lower) part of the X.25 protocol. It offers a reliable 106a2e9b73SSam Ravnborg connection service to exchange data frames with one other host, and 116a2e9b73SSam Ravnborg it is used to transport higher level protocols (mostly X.25 Packet 126a2e9b73SSam Ravnborg Layer, the higher part of X.25, but others are possible as well). 136a2e9b73SSam Ravnborg Usually, LAPB is used with specialized X.21 network cards, but Linux 146a2e9b73SSam Ravnborg currently supports LAPB only over Ethernet connections. If you want 156a2e9b73SSam Ravnborg to use LAPB connections over Ethernet, say Y here and to "LAPB over 166a2e9b73SSam Ravnborg Ethernet driver" below. Read 176a2e9b73SSam Ravnborg <file:Documentation/networking/lapb-module.txt> for technical 186a2e9b73SSam Ravnborg details. 196a2e9b73SSam Ravnborg 206a2e9b73SSam Ravnborg To compile this driver as a module, choose M here: the 216a2e9b73SSam Ravnborg module will be called lapb. If unsure, say N. 22