Administrator Guide

44 Remote Monitoring (RMON)....................................................................................................703
Implementation Information............................................................................................................................................. 703
Fault Recovery...................................................................................................................................................................703
Setting the RMON Alarm........................................................................................................................................... 703
Configuring an RMON Event..................................................................................................................................... 704
Configuring RMON Collection Statistics..................................................................................................................705
Configuring the RMON Collection History...............................................................................................................705
45 Rapid Spanning Tree Protocol (RSTP)......................................................................................706
Protocol Overview............................................................................................................................................................ 706
Configuring Rapid Spanning Tree....................................................................................................................................706
Important Points to Remember.......................................................................................................................................706
RSTP and VLT..............................................................................................................................................................707
Configuring Interfaces for Layer 2 Mode....................................................................................................................... 707
Enabling Rapid Spanning Tree Protocol Globally...........................................................................................................707
Adding and Removing Interfaces.................................................................................................................................... 709
Modifying Global Parameters...........................................................................................................................................709
Enabling SNMP Traps for Root Elections and Topology Changes.........................................................................711
Modifying Interface Parameters....................................................................................................................................... 711
Enabling SNMP Traps for Root Elections and Topology Changes...............................................................................711
Influencing RSTP Root Selection......................................................................................................................................711
Configuring an EdgePort...................................................................................................................................................712
Configuring Fast Hellos for Link State Detection.......................................................................................................... 712
46 Software-Defined Networking (SDN)........................................................................................714
47 Security..................................................................................................................................715
AAA Accounting................................................................................................................................................................. 715
Configuration Task List for AAA Accounting............................................................................................................715
RADIUS Accounting..................................................................................................................................................... 717
AAA Authentication...........................................................................................................................................................722
Configuration Task List for AAA Authentication......................................................................................................722
Obscuring Passwords and Keys...................................................................................................................................... 724
AAA Authorization.............................................................................................................................................................725
Privilege Levels Overview...........................................................................................................................................725
Configuration Task List for Privilege Levels.............................................................................................................725
RADIUS...............................................................................................................................................................................729
RADIUS Authentication...............................................................................................................................................729
Configuration Task List for RADIUS..........................................................................................................................730
Support for Change of Authorization and Disconnect Messages packets.......................................................... 733
TACACS+........................................................................................................................................................................... 742
Configuration Task List for TACACS+......................................................................................................................742
TACACS+ Remote Authentication............................................................................................................................743
Command Authorization.............................................................................................................................................744
Protection from TCP Tiny and Overlapping Fragment Attacks..................................................................................745
Enabling SCP and SSH..................................................................................................................................................... 745
Using SCP with SSH to Copy a Software Image.................................................................................................... 745
Removing the RSA Host Keys and Zeroizing Storage ...........................................................................................746
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