Users Guide

Important Points to Remember................................................................................................................................... 900
Conguring Interfaces for Layer 2 Mode.................................................................................................................... 901
Enabling Spanning Tree Protocol Globally...................................................................................................................902
Adding an Interface to the Spanning Tree Group...................................................................................................... 904
Modifying Global Parameters.......................................................................................................................................904
Modifying Interface STP Parameters..........................................................................................................................905
Enabling PortFast.......................................................................................................................................................... 905
Prevent Network Disruptions with BPDU Guard.................................................................................................906
Selecting STP Root....................................................................................................................................................... 907
STP Root Guard.............................................................................................................................................................908
Root Guard Scenario...............................................................................................................................................908
Conguring Root Guard..........................................................................................................................................909
Enabling SNMP Traps for Root Elections and Topology Changes........................................................................... 910
Conguring Spanning Trees as Hitless.........................................................................................................................910
STP Loop Guard............................................................................................................................................................. 910
Conguring Loop Guard........................................................................................................................................... 911
Displaying STP Guard Conguration............................................................................................................................ 912
55 SupportAssist.......................................................................................................................................... 913
Conguring SupportAssist Using a Conguration Wizard.........................................................................................914
Conguring SupportAssist Manually............................................................................................................................914
Conguring SupportAssist Activity.............................................................................................................................. 916
Conguring SupportAssist Company...........................................................................................................................917
Conguring SupportAssist Person............................................................................................................................... 918
Conguring SupportAssist Server................................................................................................................................918
Viewing SupportAssist Conguration.......................................................................................................................... 919
56 System Time and Date............................................................................................................................. 921
Network Time Protocol..................................................................................................................................................921
Protocol Overview...................................................................................................................................................922
Congure the Network Time Protocol..................................................................................................................922
Enabling NTP............................................................................................................................................................923
Conguring NTP Broadcasts..................................................................................................................................923
Disabling NTP on an Interface................................................................................................................................924
Conguring a Source IP Address for NTP Packets............................................................................................. 924
Conguring NTP Authentication............................................................................................................................924
Conguring NTP control key password.................................................................................................................927
Dell EMC Networking OS Time and Date................................................................................................................... 927
Conguration Task List ...........................................................................................................................................927
Setting the Time and Date for the Switch Software Clock................................................................................927
Setting the Timezone..............................................................................................................................................928
Set Daylight Saving Time........................................................................................................................................928
Setting Daylight Saving Time Once.......................................................................................................................928
Setting Recurring Daylight Saving Time............................................................................................................... 929
Conguring a Custom-dened Period for NTP time Synchronization..............................................................930
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