Users Guide

Conguring an RMON Event................................................................................................................................. 682
Conguring RMON Collection Statistics.............................................................................................................. 683
Conguring the RMON Collection History........................................................................................................... 683
43 Rapid Spanning Tree Protocol (RSTP).....................................................................................................685
Protocol Overview.........................................................................................................................................................685
Conguring Rapid Spanning Tree................................................................................................................................ 685
Related Conguration Tasks...................................................................................................................................685
Important Points to Remember................................................................................................................................... 685
RSTP and VLT..........................................................................................................................................................686
Conguring Interfaces for Layer 2 Mode....................................................................................................................686
Enabling Rapid Spanning Tree Protocol Globally........................................................................................................686
Adding and Removing Interfaces.................................................................................................................................689
Modifying Global Parameters....................................................................................................................................... 689
Enabling SNMP Traps for Root Elections and Topology Changes.................................................................... 690
Modifying Interface Parameters.................................................................................................................................. 690
Enabling SNMP Traps for Root Elections and Topology Changes........................................................................... 691
Inuencing RSTP Root Selection................................................................................................................................. 691
Conguring an EdgePort...............................................................................................................................................691
Conguring Fast Hellos for Link State Detection...................................................................................................... 692
44 Software-Dened Networking (SDN)...................................................................................................... 693
45 Security...................................................................................................................................................694
AAA Accounting.............................................................................................................................................................694
Conguration Task List for AAA Accounting........................................................................................................694
AAA Authentication.......................................................................................................................................................696
Conguration Task List for AAA Authentication.................................................................................................. 697
Obscuring Passwords and Keys...................................................................................................................................699
AAA Authorization.........................................................................................................................................................699
Privilege Levels Overview.......................................................................................................................................699
Conguration Task List for Privilege Levels..........................................................................................................700
RADIUS........................................................................................................................................................................... 704
RADIUS Authentication...........................................................................................................................................704
Conguration Task List for RADIUS...................................................................................................................... 705
TACACS+........................................................................................................................................................................708
Conguration Task List for TACACS+................................................................................................................... 708
TACACS+ Remote Authentication.........................................................................................................................709
Command Authorization..........................................................................................................................................710
Protection from TCP Tiny and Overlapping Fragment Attacks.................................................................................711
Enabling SCP and SSH...................................................................................................................................................711
Using SCP with SSH to Copy a Software Image................................................................................................. 712
Removing the RSA Host Keys and Zeroizing Storage ........................................................................................ 713
Conguring When to Re-generate an SSH Key ...................................................................................................713
Conguring the SSH Server Key Exchange Algorithm........................................................................................713
Conguring the HMAC Algorithm for the SSH Server........................................................................................714
Conguring the HMAC Algorithm for the SSH Client..........................................................................................714
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