Users Guide

Congure Spanning Tree...............................................................................................................................................933
Related Conguration Tasks...................................................................................................................................933
Important Points to Remember................................................................................................................................... 933
Conguring Interfaces for Layer 2 Mode....................................................................................................................934
Enabling Spanning Tree Protocol Globally...................................................................................................................935
Adding an Interface to the Spanning Tree Group.......................................................................................................937
Modifying Global Parameters....................................................................................................................................... 937
Modifying Interface STP Parameters..........................................................................................................................938
Enabling PortFast.......................................................................................................................................................... 938
Prevent Network Disruptions with BPDU Guard.................................................................................................939
Selecting STP Root........................................................................................................................................................941
STP Root Guard............................................................................................................................................................. 941
Root Guard Scenario................................................................................................................................................941
Conguring Root Guard..........................................................................................................................................942
Enabling SNMP Traps for Root Elections and Topology Changes...........................................................................943
Conguring Spanning Trees as Hitless........................................................................................................................943
STP Loop Guard.............................................................................................................................................................943
Conguring Loop Guard..........................................................................................................................................945
Displaying STP Guard Conguration........................................................................................................................... 945
53 SupportAssist.......................................................................................................................................... 947
Conguring SupportAssist Using a Conguration Wizard........................................................................................948
Conguring SupportAssist Manually........................................................................................................................... 948
Conguring SupportAssist Activity............................................................................................................................. 950
Conguring SupportAssist Company...........................................................................................................................951
Conguring SupportAssist Person.............................................................................................................................. 952
Conguring SupportAssist Server...............................................................................................................................952
Viewing SupportAssist Conguration......................................................................................................................... 953
54 System Time and Date.............................................................................................................................955
Network Time Protocol.................................................................................................................................................955
Protocol Overview...................................................................................................................................................956
Congure the Network Time Protocol..................................................................................................................956
Enabling NTP............................................................................................................................................................957
Conguring NTP Broadcasts..................................................................................................................................957
Disabling NTP on an Interface............................................................................................................................... 958
Conguring a Source IP Address for NTP Packets.............................................................................................958
Conguring NTP Authentication........................................................................................................................... 958
Conguring NTP control key password.................................................................................................................961
Conguring a Custom-dened Period for NTP time Synchronization...............................................................961
Dell EMC Networking OS Time and Date....................................................................................................................961
Conguration Task List ........................................................................................................................................... 961
Setting the Time and Date for the Switch Software Clock................................................................................ 961
Setting the Timezone..............................................................................................................................................962
Set Daylight Saving Time........................................................................................................................................962
Setting Daylight Saving Time Once.......................................................................................................................962
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