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Table Of Contents
Chapter 57: Spanning Tree Protocol (STP)................................................................................858
Protocol Overview..........................................................................................................................................................858
Configure Spanning Tree.............................................................................................................................................. 858
Important Points to Remember.............................................................................................................................859
Configuring Interfaces for Layer 2 Mode..................................................................................................................860
Enabling Spanning Tree Protocol Globally.................................................................................................................861
Adding an Interface to the Spanning Tree Group...................................................................................................862
Removing an Interface from the Spanning Tree Group........................................................................................ 862
Modifying Global Parameters.......................................................................................................................................863
Modifying Interface STP Parameters........................................................................................................................ 864
Enabling PortFast........................................................................................................................................................... 864
Prevent Network Disruptions with BPDU Guard.................................................................................................... 865
Global BPDU Filtering.....................................................................................................................................................867
Interface BPDU Filtering............................................................................................................................................... 867
Selecting STP Root........................................................................................................................................................ 868
STP Root Guard.............................................................................................................................................................. 868
Root Guard Scenario................................................................................................................................................868
Configuring Root Guard.......................................................................................................................................... 869
Enabling SNMP Traps for Root Elections and Topology Changes......................................................................870
Configuring Spanning Trees as Hitless...................................................................................................................... 870
STP Loop Guard.............................................................................................................................................................. 870
Configuring Loop Guard........................................................................................................................................... 871
Displaying STP Guard Configuration.......................................................................................................................... 872
Chapter 58: SupportAssist........................................................................................................ 873
Configuring SupportAssist Using a Configuration Wizard.................................................................................... 873
Configuring SupportAssist Manually...........................................................................................................................874
Configuring SupportAssist Activity.............................................................................................................................875
Configuring SupportAssist Company..........................................................................................................................877
Configuring SupportAssist Person.............................................................................................................................. 877
Configuring SupportAssist Server...............................................................................................................................878
Viewing SupportAssist Configuration.........................................................................................................................879
Chapter 59: System Time and Date............................................................................................ 881
Network Time Protocol.................................................................................................................................................. 881
Protocol Overview.................................................................................................................................................... 882
Configure the Network Time Protocol.................................................................................................................882
Enabling NTP..............................................................................................................................................................882
Configuring NTP Broadcasts..................................................................................................................................883
Disabling NTP on an Interface............................................................................................................................... 883
Configuring a Source IP Address for NTP Packets.......................................................................................... 883
Configuring NTP Authentication........................................................................................................................... 884
Configuring a Custom-defined Period for NTP time Synchronization.........................................................886
Dell EMC Networking OS Time and Date................................................................................................................. 886
Configuration Task List .......................................................................................................................................... 886
Setting the Time and Date for the Switch Software Clock............................................................................886
Setting the Timezone...............................................................................................................................................887
Set Daylight Saving Time........................................................................................................................................ 887
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