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20 CHAPTER : CONTENTS
B RADIUS SERVER AND RADIUS CLIENT SETUP
Setting Up A RADIUS Server 627
Configuring Microsoft IAS RADIUS 627
Configuring Funk RADIUS 652
Configuring FreeRADIUS 656
Setting Up the RADIUS Client 658
Windows 2000 built-in client 658
Windows XP built-in client 658
Aegis Client Installation 659
C AUTHENTICATING THE SWITCH 5500 WITH CISCO SECURE ACS
Cisco Secure ACS (TACACS+) and the 3Com Switch 5500 661
Setting Up the Cisco Secure ACS (TACACS+) server 661
Adding a 3Com Switch 5500 as a RADIUS client 662
Adding a User for Network Login 664
Adding a User for Switch Login 665
D 3COM XRN
What is XRN? 672
Supported Switches 672
XRN Terminology 672
Benefits of XRN 673
XRN Features 673
Distributed Device Management (DDM) 673
Distributed Resilient Routing (DRR) 673
Distributed Link Aggregation (DLA) 674
How to Implement XRN—Overview 676
Important Considerations and Recommendations 676
Recommendations for Achieving Maximum Resilience 677
Unit ID Numbering Mechanism 678
678
Network Example using XRN 678
XRN Distributed Fabric Network 678
Recovering your XRN Network 680
Unit Failure 680
Interconnect Failure 680
How XRN Interacts with other 3Com Switches 680
How XRN Interacts with other Features 681
VLANs 681
Legacy Aggregated Links 682
STP/RSTP 683
Resilient Links 683
How a Failure affects the Distributed Fabric 684
Loss of a Switch within the XRN Distributed Fabric 684
Loss of the Fabric Interconnect 685