Introduction to Networking for NonStop S-Series Servers

Local Area Network (LAN) Connections
Introduction to Networking for HP NonStop S-Series Servers—520670-005
9-2
LAN Interfaces for HP NonStop S-Series Servers
Figure 9-1 illustrates the relationships among these standards, with an emphasis on
those products that HP currently supports.
Besides the IEEE, other organizations publish widely followed standards for LANs.
Many of the standards are similar to the IEEE 802 standards. The American National
Standards Institute (ANSI) publishes a set of LAN standards, for example, standards
for fiber optic and token-ring networks. Both Ethernet and token ring support both IP
and SNA concurrently.
LAN Interfaces for HP NonStop S-Series
Servers
To connect NonStop S-series servers to Ethernet 802.3 LANs, HP provides the
Ethernet 4 ServerNet adapter (E4SA), Fast Ethernet ServerNet adapter (FESA),
Gigabit Ethernet ServerNet adapter (GESA), and Gigabit Ethernet 4-port ServerNet
adapter (G4SAs). The Token-Ring ServerNet adapter (TRSA) is used to connect to
token-ring 802.5 LANs. The ATM 3 ServerNet adapter (ATM3SA) is used to connect
ATM networks. The E4SA, FESA, GESA, G4SA, and TRSA use the ServerNet LAN
systems access (SLSA) subsystem to deliver external LAN access. For more
802.3u Defines a standard for Fast Ethernet.
802.z Defines a standard for Gigabit Ethernet (1000 Base-SX standard).
802.4 Defines a MAC protocol known as token-bus for token passing in a bus
topology, using broadband or baseband cable.
802.5 Defines a MAC protocol known as token-ring for token passing in a ring
network, using baseband twisted-pair wire, coaxial cable, or fiber optics.
802.6 Defines a MAC protocol known as slotted ring for metropolitan area networks
(MANs).
802.9 Defines an architecture for integrating voice and data.
802.10 Defines encryption and key distribution mechanisms for LANs.
Figure 9-1. IEEE 802 LAN Interface Standards
802 Standard Description (page 2 of 2)
VST036.vsd
802.3
CSMA/CD
802.6
Slotted Ring
FDDI
Dual Token-Ring
802.2 Logical Link
Control
802.3u
Fast
Ethernet
802.4
Token-Bus
802.5
Token-Ring
802.3ab
Gigabit
Ethernet
802.3z
Gigabit
Ethernet