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45 Remote Monitoring (RMON)................................................................................................................... 785
Implementation Information..........................................................................................................................................785
Fault Recovery............................................................................................................................................................... 785
Setting the RMON Alarm........................................................................................................................................786
Conguring an RMON Event................................................................................................................................. 786
Conguring RMON Collection Statistics...............................................................................................................787
Conguring the RMON Collection History............................................................................................................787
46 Rapid Spanning Tree Protocol (RSTP)..................................................................................................... 789
Protocol Overview......................................................................................................................................................... 789
Conguring Rapid Spanning Tree.................................................................................................................................789
Related Conguration Tasks................................................................................................................................... 789
Important Points to Remember....................................................................................................................................789
RSTP and VLT..........................................................................................................................................................790
Conguring Interfaces for Layer 2 Mode....................................................................................................................790
Enabling Rapid Spanning Tree Protocol Globally.........................................................................................................791
Adding and Removing Interfaces................................................................................................................................. 793
Modifying Global Parameters....................................................................................................................................... 793
Enabling SNMP Traps for Root Elections and Topology Changes.....................................................................795
Modifying Interface Parameters.................................................................................................................................. 795
Enabling SNMP Traps for Root Elections and Topology Changes...........................................................................795
Inuencing RSTP Root Selection.................................................................................................................................795
Conguring an EdgePort.............................................................................................................................................. 796
Conguring Fast Hellos for Link State Detection.......................................................................................................797
47 Software-Dened Networking (SDN)...................................................................................................... 798
48 Security................................................................................................................................................... 799
AAA Accounting.............................................................................................................................................................799
Conguration Task List for AAA Accounting........................................................................................................ 799
AAA Authentication........................................................................................................................................................801
Conguration Task List for AAA Authentication.................................................................................................. 802
Obscuring Passwords and Keys...................................................................................................................................805
AAA Authorization.........................................................................................................................................................805
Privilege Levels Overview.......................................................................................................................................805
Conguration Task List for Privilege Levels..........................................................................................................806
RADIUS............................................................................................................................................................................810
RADIUS Authentication........................................................................................................................................... 810
Conguration Task List for RADIUS........................................................................................................................811
Support for Change of Authorization and Disconnect Messages packets.......................................................815
TACACS+........................................................................................................................................................................824
Conguration Task List for TACACS+................................................................................................................... 824
TACACS+ Remote Authentication.........................................................................................................................826
Command Authorization......................................................................................................................................... 827
Protection from TCP Tiny and Overlapping Fragment Attacks............................................................................... 827
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