Reference Guide

47 Storm Control.................................................................................................839
Configure Storm Control................................................................................................................. 839
Configuring Storm Control from INTERFACE Mode.................................................................839
Configuring Storm Control from CONFIGURATION Mode......................................................839
48 Spanning Tree Protocol (STP)..................................................................... 840
Protocol Overview............................................................................................................................840
Configure Spanning Tree.................................................................................................................840
Related Configuration Tasks...................................................................................................... 840
Important Points to Remember........................................................................................................841
Configuring Interfaces for Layer 2 Mode.........................................................................................841
Enabling Spanning Tree Protocol Globally......................................................................................842
Adding an Interface to the Spanning Tree Group...........................................................................844
Modifying Global Parameters...........................................................................................................845
Modifying Interface STP Parameters............................................................................................... 846
Enabling PortFast..............................................................................................................................846
Prevent Network Disruptions with BPDU Guard....................................................................... 847
Selecting STP Root........................................................................................................................... 849
STP Root Guard................................................................................................................................ 850
Root Guard Scenario.................................................................................................................. 850
Configuring Root Guard..............................................................................................................851
Enabling SNMP Traps for Root Elections and Topology Changes................................................. 852
Configuring Spanning Trees as Hitless............................................................................................ 852
STP Loop Guard................................................................................................................................853
Configuring Loop Guard............................................................................................................ 854
Displaying STP Guard Configuration............................................................................................... 855
49 System Time and Date.................................................................................. 856
Network Time Protocol....................................................................................................................856
Protocol Overview...................................................................................................................... 857
Configure the Network Time Protocol......................................................................................858
Enabling NTP...............................................................................................................................858
Configuring NTP Broadcasts......................................................................................................858
Disabling NTP on an Interface....................................................................................................859
Configuring a Source IP Address for NTP Packets....................................................................859
Configuring NTP Authentication................................................................................................860
Dell Networking OS Time and Date.................................................................................................863
Configuration Task List ..............................................................................................................863
Setting the Time and Date for the Switch Software Clock....................................................... 863
Setting the Timezone................................................................................................................. 863
Set Daylight Saving Time............................................................................................................864
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