Users Guide

49 Remote Monitoring (RMON)........................................................................................... 908
Implementation Information...............................................................................................908
Fault Recovery........................................................................................................................908
Setting the rmon Alarm.................................................................................................. 909
Configuring an RMON Event......................................................................................... 910
Configuring RMON Collection Statistics......................................................................911
Configuring the RMON Collection History................................................................. 911
50 Rapid Spanning Tree Protocol (RSTP)............................................................................913
Protocol Overview................................................................................................................. 913
Configuring Rapid Spanning Tree.......................................................................................913
Related Configuration Tasks.......................................................................................... 913
Important Points to Remember.................................................................................... 914
RSTP and VLT.................................................................................................................... 914
Configuring Interfaces for Layer 2 Mode.......................................................................... 915
Enabling Rapid Spanning Tree Protocol Globally........................................................... 916
Adding and Removing Interfaces..................................................................................918
Modifying Global Parameters.........................................................................................919
Modifying Interface Parameters....................................................................................920
Configuring an EdgePort................................................................................................ 921
Influencing RSTP Root Selection.................................................................................. 922
Enabling SNMP Traps for Root Elections and Topology Changes........................922
51 Software-Defined Networking (SDN).............................................................................923
52 Security................................................................................................................................ 924
AAA Accounting..................................................................................................................... 924
Configuration Task List for AAA Accounting..............................................................924
AAA Authentication................................................................................................................927
Configuration Task List for AAA Authentication........................................................ 927
Obscuring Passwords and Keys..........................................................................................930
AAA Authorization..................................................................................................................930
Privilege Levels Overview...............................................................................................930
Configuration Task List for Privilege Levels................................................................ 931
RADIUS..................................................................................................................................... 935
RADIUS Authentication and Authorization................................................................. 936
Configuration Task List for RADIUS..............................................................................937
TACACS+.................................................................................................................................940
Configuration Task List for TACACS+......................................................................... 940
Command Authorization................................................................................................942
Protection from TCP Tiny and Overlapping Fragment Attacks................................... 943
28