White Papers

41 Remote Monitoring (RMON)....................................................................................................................739
Implementation Information..........................................................................................................................................739
Fault Recovery............................................................................................................................................................... 739
Setting the RMON Alarm........................................................................................................................................740
Conguring an RMON Event..................................................................................................................................740
Conguring RMON Collection Statistics................................................................................................................741
Conguring the RMON Collection History............................................................................................................ 741
42 Rapid Spanning Tree Protocol (RSTP)..................................................................................................... 743
Protocol Overview......................................................................................................................................................... 743
Conguring Rapid Spanning Tree.................................................................................................................................743
Related Conguration Tasks................................................................................................................................... 743
Important Points to Remember....................................................................................................................................743
RSTP and VLT.......................................................................................................................................................... 744
Conguring Interfaces for Layer 2 Mode....................................................................................................................744
Enabling Rapid Spanning Tree Protocol Globally........................................................................................................745
Adding and Removing Interfaces................................................................................................................................. 747
Modifying Global Parameters........................................................................................................................................747
Enabling SNMP Traps for Root Elections and Topology Changes.....................................................................749
Modifying Interface Parameters...................................................................................................................................749
Enabling SNMP Traps for Root Elections and Topology Changes...........................................................................749
Inuencing RSTP Root Selection.................................................................................................................................749
Conguring an EdgePort.............................................................................................................................................. 750
Conguring Fast Hellos for Link State Detection....................................................................................................... 751
43 Software-Dened Networking (SDN)...................................................................................................... 752
44 Security................................................................................................................................................... 753
AAA Accounting.............................................................................................................................................................753
Conguration Task List for AAA Accounting........................................................................................................ 753
AAA Authentication.......................................................................................................................................................755
Conguration Task List for AAA Authentication.................................................................................................. 756
Obscuring Passwords and Keys...................................................................................................................................759
AAA Authorization......................................................................................................................................................... 759
Privilege Levels Overview.......................................................................................................................................759
Conguration Task List for Privilege Levels..........................................................................................................760
RADIUS........................................................................................................................................................................... 764
RADIUS Authentication...........................................................................................................................................764
Conguration Task List for RADIUS.......................................................................................................................765
Support for Change of Authorization and Disconnect Messages packets...................................................... 769
TACACS+........................................................................................................................................................................ 778
Conguration Task List for TACACS+................................................................................................................... 778
TACACS+ Remote Authentication.........................................................................................................................780
Command Authorization..........................................................................................................................................781
Protection from TCP Tiny and Overlapping Fragment Attacks................................................................................ 781
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