Enterasys Networks 700 - Manual (Page 173)

About the DELHW-UA 7-3
WAN Configuration
throughput of up to 1.544 Mbps. Time Division
Multiplexing (TDM) allows for channelization of up to 24
links over a single physical T1/FT1 interface.
DELTD-UI This port interface module provides both a T1 and DDS
interface that allows you to easily switch between the
two interfaces by changing the physical cabling and
reconfiguring the desired interface with either QuickSET
for the DELHW-UA or NetSight Element Manager.
For more information on these port modules, consult the appropriate hardware
documentation or your QuickSET for the DELHW-UA documentation.
See The WAN Logical View on page 7-4 for details on accessing the WAN Logical
View window through the DELHW-UA Chassis View.
WAN Redundancy
For a redundant wide-area connection, one of the WAN interfaces on your
DELHW-UA can be configured as a primary link, with the other interface
designated as the backup. If the primary link should fail for some reason, the
other WAN interface will take over as the wide area link until the primary is
restored.
When a DELST-UI is installed as the backup interface, that connection will
activate and provide an ISDN connection to the wide area network, if the primary
WAN link fails. The ISDN WPIM can also provide backup for single or multiple
Data Link Connection Interfaces (DLCIs). If a leased line loses a DLCI or a remote
office, for example, the DELST-UI will restore a 64K connection for that site while
the rest of the connections remain on the leased line. For more information on
WAN redundancy and the DELST-UI, consult your QuickSET documentation or
your hardware documentation.
NOTE
The DELDI-UI and DELE1-UI are not supported by NetSight Element Manager at the
time of this release. To configure these port interface modules, use the QuickSET for the
DELHW-UA application that was shipped with your device. See your QuickSET
documentation for more information.
NOTE
The DELST-UI is designed for WAN ISDN redundancy only and is not intended to be
used for a primary WAN connection at this time.