lan(7)							 Miscellaneous Information Manual						    lan(7)

NAME
lan - network I/O card access information DESCRIPTION
This manual entry gives a brief description on how to access the LAN device driver at Layer 2 (Data Link Layer) of the OSI architecture. The LAN device driver controls the various LAN interface cards (e.g, Ethernet/IEEE 802.3, FDDI, Token Ring) at Layer 1 (Physical Layer). The Data Link Provider Interface (DLPI) is the supported method for accessing the LAN device driver at Layer 2. DLPI is intended for use by knowledgeable network users only. Refer to the for complete programming details. There are HP and non-HP drivers and interface cards which will provide their own DLPI module. These types of DLPI are referred to as "native" DLPI. Overview The Physical Point of Attachment (PPA) is a numerical value that uniquely identifies a particular device. The PPA value can be obtained from the and commands. The "ClassInstance" identifier in the output is the concatenation of the driver class (lan) and the PPA number. The "NamePPA" identifier in the output is a concatenation of the interface name and the PPA number. The value for a lan device is equiva- lent to the PPA number for that device. A single hardware device may have multiple "NamePPA" identifiers, which indicates multiple encapsulation methods supported for to the device. For Ethernet/IEEE 802.3 links, the "Name" is used to designate Ethernet encapsulation, and for IEEE 802.3 encapsulation. For other links (FDDI, Token Ring), only the encapsulation designation is used. Methods of transfer over the DLPI interface through the lan devices include "raw", "connectionless", and "connection-oriented" data trans- fers. WARNINGS
The and commands are deprecated. These commands will be removed in a future HP-UX release. HP recommends the use of replacement command nwmgr(1M) to perform all network interface-related tasks. AUTHOR
was developed by HP. SEE ALSO
lanscan(1M), lanadmin(1M), linkloop(1M), nwmgr(1M). 1995, Hewlett-Packard Version 2.0, November 1982, Digital Equipment Corporation, Intel Corporation, Xerox Corporation 1996, Institute of Electrical and Electronic Engineers 1996, Institute of Electrical and Electronic Engineers 1995, ANSI 1995, Institute of Electrical and Electronic Engineers 1995, Institute of Electrical and Electronic Engineers lan(7)

Featured Tech Videos