Expand Configuration and Management Manual (G06.24+)

Configuring Expand-Over-ATM Lines

Expand Configuration and Management Manual—523347-008

9-3

ATM Subsystem

ATM is a cell-switching and multiplexing technology that combines the benefits of

circuit switching (constant transmission delay and guaranteed capacity) with those of

packet switching (flexibility and intermittent traffic). The ATM subsystem is the HP

implementation of the ATM technology. The ATM subsystem supports the ATM User-

Network Interface (UNI) Specification Version 3.0 over a 155 Mbps SONET STS-3c

connection.

For information about configuring and managing the ATM subsystem, refer to the ATM

Configuration and Management Manual.

SLSA Subsystem

The SLSA subsystem provides access to parallel LAN and WAN I/O for NonStop

S-series servers. The SLSA subsystem provides access to Ethernet, Fast Ethernet,

Gigabit Ethernet, token-ring, CCSA, multifunction I/O-board Ethernet adapters, the

ServerNet wide area network (SWAN) concentrator, and to Expand-over-ATM line

handlers through ATM3SA adapters.

For information about the SLSA subsystem, refer to the LAN Configuration and

Management Manual.

ATM 3 ServerNet Adapter (ATM3SA)

The ATM3SA provides one bidirectional full-duplex ATM 0C3 port for connection to the

UNI. The UNI is an interface point between ATM end users and a private ATM switch,

or between a private ATM switch and the public carrier ATM network. The UNI

interface is defined by standards adopted by the ATM Forum.

For information about installing an ATM3SA, refer to the ATM Configuration and

Management Manual.