HP OpenVMS I/O User's Reference Manual

Local Area Network (LAN) Device Drivers

Local Area Network (LAN) Terminology

LAN Controller Characteristics

Supported Communication Devices  

OpenVMS VAX LAN Devices  

On VAX systems, Supported OpenVMS VAX Systems LAN Devices lists the supported devices.

Table 1   Supported OpenVMS VAX Systems LAN Devices

Medium	Bus	Device	Device Name	DECnet Name	Device Type	Version
CSMA/CD	XMI	DEMNA	EXc0	MNA	DT$_EX_DEMNA	V5.3
CSMA/CD	Local	SGEC	EZc0	ISA	DT$_EZ_SGEC	V5.3
CSMA/CD	Local	LANCE	ESc0	SVA	DT$_ES_LANCE	V4.4
CSMA/CD	TURBOchannel	PMAD	ECc0	MXE	DT$_EC_PMAD	V5.5-2HW
CSMA/CD	TURBOchannel	DELTA	ECc0	MXE	DT$_EC_PMAD	V5.5-2HW
CSMA/CD	Q-bus	DESQA	ESc0	SVA	DT$_ES_LANCE	V5.0
CSMA/CD	Q-bus	DELQA	XQc0	QNA	DT$_XQ_DELOA	V5.0
CSMA/CD	Q-bus	DEQTA	XQc0	QNA	DT$_XQ_DEQTA	V5.3
CSMA/CD	Q-bus	DEQNA	XQc0	QNA	DT$_DEQNA	V4.0
CSMA/CD	Q-bus	KFE52	EFc0	KFE	DT$_FT_NI	V5.4
CSMA/CD	UNIBUS	DEUNA	XEc0	UNA	DT$_DEUNA	V4.0
CSMA/CD	UNIBUS	DELUA	XEc0	UNA	DT$_DELUA	V4.0
CSMA/CD	BI	DEBNA	ETc0	BNA	DT$_ET_DEBNA	V4.4
CSMA/CD	BI	DEBNK	ETc0	BNA	DT$_ET_DEBNA	V4.4
CSMA/CD	BI	DEBNT	ETc0	BNA	DT$_ET_DEBNA	V4.4
CSMA/CD	BI	DEBNI	ETc0	BNA	DT$_ET_DEBNI	V5.2
FDDI	XMI	DEMFA	FXc0	MFA	DT$_FX_DEMFA	V5.4-3
FDDI	TURBOchannel	DEFZA	FCc0	FZA	DT$_FC_DEFZA	V5.5-2HW
FDDI	TURBOchannel	DEFTA	FCc0	FZA	DT$_FC_DEFTA	V6.0
FDDI	Q-bus	DEFQA	FQc0	FQA	DT$_FQ_DEFQA	V6.1

The DEQTA device is also known as the DELQA-YM. Also note that the device name is the name of the template device that is used by applications to identify the LAN device. The "c" in the device name indicates the controller letter, for example, A, B, and so on.

OpenVMS Alpha LAN Devices  

On Alpha systems, Supported OpenVMS Alpha LAN Devices lists the supported LAN devices.

Table 2   Supported OpenVMS Alpha LAN Devices

Medium	Bus	Device	Device Name	DECnet Name	Device Type	Version
CSMA/CD	XMI	DEMNA	EXc0	MNA	DT$_EX_DEMNA	V1.0
CSMA/CD	Local	TGEC	EZc0	ISA	DT$_EZ_TGEC	V1.0
CSMA/CD	TURBOchannel	COREIO	ESc0	SVA	DT$_ES_LANCE	V1.0
CSMA/CD	TURBOchannel	PMAD	ECc0	MXE	DT$_EC_PMAD	V1.0
CSMA/CD	TURBOchannel	DELTA	ECc0	MXE	DT$_EY_NITC2	V6.1
CSMA/CD	EISA	DE422	ERc0	ERA	DT$_ER_DE422	V1.5
CSMA/CD	EISA	DE425	ERc0	ETA	DT$_ER_TULIP	V6.1
CSMA/CD	ISA	DE200	ERc0	ERA	DT$_ER_LANCE	V6.1
CSMA/CD	ISA	DE201	ERc0	ERA	DT$_ER_LANCE	V6.1
CSMA/CD	ISA	DE202	ERc0	ERA	DT$_ER_LANCE	V6.1
CSMA/CD	ISA	DE203	ERc0	ERA	DT$_ER_LEMAC	V6.2
CSMA/CD	ISA	DE204	ERc0	ERA	DT$_ER_LEMAC	V6.2
CSMA/CD	ISA	DE205	ERc0	ERA	DT$_ER_LEMAC	V6.2
CSMA/CD	Embedded	Tulip	EWc0	EWA	DT$_EW_TULIP	V6.1
CSMA/CD	PCI	DE434	EWc0	EWA	DT$_EW_DE435	V6.1
CSMA/CD	PCI	DE435	EWc0	EWA	DT$_EW_DE435	V6.1
CSMA/CD	PCI	DE436	EWc0	EWA	DT$_EW_DE435	V6.1
CSMA/CD	PCI	DE450	EWc0	EWA	DT$_EW_DE450	V6.2
CSMA/CD	PCI	DE500-XA	EWc0	EWA	DT$_EW_DE500	V6.2
CSMA/CD	PCI	DE500-AA	EWc0	EWA	DT$_EW_DE500	V6.2
CSMA/CD	PCI	DE500-BA	EWc0	EWA	DT$_EW_DE500	V6.2
CSMA/CD	PCI	DE504-BA	EWc0	EWA	DT$_EW_DE504	V7.1-1H1
CSMA/CD	PCI	DE500-FA	EWc0	EWA	DT$_EW_DE500	V7.1
CSMA/CD	PCI	P2SE	EWc0	EWA	DT$_EW_DE500	V7.2
CSMA/CD	PCI	P2SE+	EWc0	EWA	DT$_EW_DE500	V7.2
CSMA/CD	Embedded	21142	EWc0	EWA	DT$_EW_DE500	V7.2
CSMA/CD	Embedded	21143	EWc0	EWA	DT$_EW_DE500	V7.2
CSMA/CD	PCMCIA	3COM 3C589B	EOc0	CEC	DT$_EO_3C589	V6.2-1H2
CSMA/CD	PCI	DEGPA-SA	EWc0	EWA	DT$_EW_DEGPA	V7.1-2
CSMA/CD	PCI	DEGPA-TA	EWc0	EWA	DT$_EW_DEGPA	V7.1-2
CSMA/CD	PCI	DE600	EIc0	EIA	DT$_EI_82558 or DT$_EI_82559	V7.1-2
CSMA/CD	PCI	DE602	EIc0	EIA	DT$_EI_82558 or DT$_EI_82559	V7.1-2
CSMA/CD	PCI	Shared Memory	EBc0	EBA	DT$_EB_SMLAN	V7.1-2
FDDI	XMI	DEMFA	FXc0	MFA	DT$_FX_DEMFA	V1.0
FDDI	FutureBus+	DEFAA	FAc0	FAA	DT$_FA_DEFAA	V1.5
FDDI	TURBOchannel	DEFZA	FCc0	FZA	DT$_FC_DEFZA	V1.0
FDDI	TURBOchannel	DEFTA	FCc0	FZA	DT$_FC_DEFTA	V1.5
FDDI	EISA	DEFEA	FRc0	FEA	DT$_FR_DEFEA	V1.5-1H1
FDDI	PCI	DEFPA	FWc0	FPA	DT$_FW_DEFPA	V6.2
TokenRing	TURBOchannel	DETRA	ICc0	TRA	DT$_IC_DETRA	V6.1
TokenRing	EISA	DW300	IRc0	TRE	DT$_IR_DW300	V6.1
TokenRing	ISA	DW110	IRc0	TRE	DT$_IR_DW300	V6.2
TokenRing	PCI	PBXNP-AA	IWc0	TRE	DT$_IW_TI380PCI	V6.2-1H1
TokenRing	PCI	PBXNP-DA	IWc0	TRE	DT$_IW_RACORE	V7.1-1H1
ATM	TURBOchannel	DGLTA	HCc0 /ELc0	ELA	DT$_HC_OTTO	V6.2
ATM	PCI	DGLPB	HWc0 /ELc0	ELA	DT$_HW_OTTO	V7.1-1H1
ATM	PCI	DGLPA	HWc0 /ELc0	ELA	DT$_HW_METEOR	V7.1-2
ATM	PCI	DAPBA	HWc0 /ELc0	ELA	DT$_HW_HE155	V7.2-1
ATM	PCI	DAPCA	HWc0 /ELc0	ELA	DT$_HW_HE622	V7.2-1

The EL device is the emulated LAN device associated with the physical ATM device.

Supported Industry Standards  

Ethernet drivers support the following features:

• Ethernet and IEEE 802.3 packet format



• Physical layer identified as type 10Base5 (ThickWire), 10Base2 (ThinWire), and 10BaseT (twisted pair)



• Fast Ethernet and IEEE 802.3u packet format



• Fast Ethernet physical layer identified as type 100BaseTX



• Gigabit Ethernet and IEEE 802.3z packet format



• Gigabit Ethernet's physical layer is identified as type 1000BaseT for unshielded twisted pair (UTP), 1000Base-SX for multimode fiber-optic cables.



• Gigabit Ethernet maximum frame size of 9018 bytes (limited to 7552 bytes in OpenVMS Version 7.3-1 and earlier)

FDDI drivers support the following features:

• FDDI packet format



• Transmission and reception of frame control (FC) priority

Token Ring drivers support the following features:

• IEEE 802.5 packet format

ATM drivers over ELAN support the following features:

• Ethernet and IEEE 802.3 packet format



• UNI Version 3.0 or 3.1 signaling protocol



• LAN emulation (LANE) Version 1.0



• Maximum frame sizes of 1516, 4544, and 9234 bytes

All LAN drivers support the following features:

• 802.2 packet format



• IEEE 802.2 Class I service including the unnumbered information (UI), exchange identification (XID) commands and responses, and TEST commands and responses



• IEEE 802.2 Class II service may be specified where the functions are provided by the user application



• Six-byte destination and source address fields

Contrary to the IEEE 802.2 Standard, the Global DSAP (FF) must be enabled as a Group SAP to receive messages with the Global DSAP in the destination SAP field.

FDDI conforms to the ANSI Standards defined in the following documents:

• ANSI X3.139-1987 FDDI Media Access Control (MAC)



• ANSI X3.148-1988 FDDI Physical Layer Protocol (PHY)



• ANSI X3.166-1990 FDDI Physical Layer Medium Dependent (PMD)

Local Area Network (LAN) Terminology

LAN Controller Characteristics