User Guide

32 Chapter 1 Overview
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For Nortel, success is delivering technologies providing secure access to your
information using security-compliant systems. Your success is measured by
increased employee productivity and lower network operations costs. Nortel’s
solutions provide your organization with the network intelligence required for
success.
Elements of the NSNA solution
The following devices are essential elements of the Nortel SNA solution:
• Nortel Secure Network Access Switch 4050 (Nortel SNAS 4050), which acts
as the Policy Decision Point
• network access device, which acts as the Policy Enforcement Point
— Ethernet Routing Switch 8300
— Ethernet Routing Switch 5510, 5520, or 5530
• DHCP and DNS servers
The following devices are additional, optional elements of the Nortel SNA
solution:
• remediation server
• corporate authentication services such as LDAP or RADIUS services
Each Nortel SNAS 4050 device can support up to five network access devices.
Supported users
The Nortel SNAS 4050 supports the following types of users:
• PCs using the following operating systems:
— Windows 2000 SP4
— Windows XP SP2
The Nortel SNAS 4050 supports the following browsers:
— Internet Explorer version 6.0 or later
— Netscape Navigator version 7.3 or later
— Mozilla Firefox version 1.0.6 or later