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Configuring Enterprise Edge Resources 49
P0911588 Issue 01 Enterprise Edge 2.0 Programming Operations Guide
Note: Because the Enterprise Edge WAN interface has a maximum bandwidth of
1.544 Mbit/s (T1) or 2.048 Mbit/s (E1), setting the LAN connection speed
to 10 Mbit/s does not reduce performance. However, the CPU is more
efficient if you limit your incoming traffic to 10 Mbit/s. To increase your
CPU performance, set the connected external LAN hub or switch to
10 Mbit/s or to Auto Sense.
Note: If you enable LAN Traffic Smoothing, the connection type defaults to
Auto Sense and there is no requirement on the external LAN hub or switch.
To view LAN performance:
1. From the LAN1 summary screen, on the menu, click Performance and then
click LAN Graph.
The LAN Graph: Statistic Chart screen is displayed.
2. On the menu, click Performance andthenclickLAN Table.
The LAN Table: Statistic Table screen is displayed.
WAN
WAN Overview
A WAN (wide area network) is a geographically dispersed data communication
network. The term WAN distinguishes a broader data communication structure
from a local area network (LAN). A WAN can be privately owned or rented, but
usually connotes the inclusion of public (shared user) networks.
Enterprise Edge is equipped with a SDL WAN Series 500 interface card with two
serial synchronous ports (Europe), or a SDL WAN Series 550 interface card with
one T1 port (with integrated CSU/DSU) and one serial synchronous port (North
America). Each port from the WAN interface provides a primary WAN connection
(WAN1, WAN2). The serial synchronous port supports the following:
North America: V.35
Europe: V.35 (Upper Sync Port) and X.21 (Lower Sync Port)
Maximum line speed: 8 Mbit/sec.
Enterprise Edge provides primary and backup WAN links through dial-up
connections using a V.90 modem (North America) or ISDN BRI/PRI. For
information on V.90 modem or ISDN connections, see Dial Up. Net Link Manager
provides continuous WAN connection status monitoring. For information on Net
Link Manager, see Net Link Manager on page 229.
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