Expand Configuration and Management Manual (G06.24+)

Configuring Expand-Over-X.25 Lines
Expand Configuration and Management Manual—523347-008
10-4
Local Area Network (LAN) Driver and Interrupt
Handlers (DIHs)
the TCP/IP (Parallel Library) Configuration and Management Manual, and the
TCP/IPv6 Configuration and Management Manual.
Local Area Network (LAN) Driver and Interrupt Handlers (DIHs)
NonStop TCP/IP processes can interface to the network through the ServerNet LAN
Systems Access (SLSA) subsystem. The SLSA subsystem provides QIO-based driver
and interrupt handlers (DIHs) that allow NonStop TCP/IP processes to connect to a
LAN adapter. The SLSA subsystem is preconfigured and started during the system
load sequence.
For information about the SLSA subsystem, refer to the LAN Configuration and
Management Manual.
Ethernet 4 ServerNet Adapter (E4SA)
The E4SA is a double-high ServerNet adapter that supports four Ethernet interfaces
and communicates with multiple processors through its dual ServerNet interfaces to
the ServerNet fabrics. Two E4SAs are used to connect a SWAN concentrator to a
processor. For information about the E4SA, refer to the LAN Configuration and
Management Manual.
Fast Ethernet ServerNet Adapter (FESA)
The FESA is a single-port adapter that provides connectivity between NonStop
S-series servers and Fast Ethernet 802.3u LANs. The data transfer rate is limited to 10
Mbps when the FESA is connected to a SWAN concentrator, but a data transfer rate of
10/100 Mbps is possible when the FESA is connected to a SWAN 2 concentrator. For
information about FESAs, refer to the LAN Configuration and Management Manual.
Gigabit Ethernet ServerNet Adapter (GESA)
The Gigabit Ethernet ServerNet adapter (GESA) is a single-port ServerNet adapter
that provides Gigabit connectivity between NonStop S-series systems and Ethernet
LANs. A GESA can be directly installed in slots 51 through 54 of an I/O enclosure and
slots 53 and 54 of a processor enclosure. The data transfer rate is limited to 10 Mbps
when the GESA is connected to a SWAN concentrator, but a data transfer rate of
10/100 Mbps is possible when the GESA is connected to a SWAN 2 concentrator. For
information about the GESA, refer to the LAN Configuration and Management Manual.
Gigabit Ethernet 4-Port ServerNet Adapter (G4SA)
The Gigabit Ethernet 4-port ServerNet adapter (G4SA) is a multiport ServerNet
adapter that provides Gigabit connectivity between NonStop S-series systems and
Ethernet LANs. A G4SA can be directly installed in slots 1 through 5 of an I/O adapter
module (IOAM). Since there are two IOAMs in an IOAM enclosure, a total of 10 G4SAs
can be installed in an enclosure. The G4SA replaces the Ethernet 4 ServerNet adapter
(E4SA), Fast Ethernet ServerNet adapter (FESA), and the Gigabit Ethernet ServerNet