Reference Guide

Assigning a VLAN Alias............................................................................................................................................. 721
Displaying the Ports in a VLAN...............................................................................................................................721
Add Tagged and Untagged Ports to a VLAN...................................................................................................... 721
Managing Overload on Startup....................................................................................................................................722
Enabling and Disabling a Port using SNMP...............................................................................................................723
Fetch Dynamic MAC Entries using SNMP................................................................................................................ 723
Deriving Interface Indices..............................................................................................................................................724
Monitor Port-Channels..................................................................................................................................................725
Troubleshooting SNMP Operation..............................................................................................................................726
Chapter 51: Storm Control.........................................................................................................728
Configure Storm Control...............................................................................................................................................728
Configuring Storm Control from INTERFACE Mode........................................................................................ 728
Configuring Storm Control from CONFIGURATION Mode.............................................................................728
Chapter 52: Spanning Tree Protocol (STP)................................................................................729
Protocol Overview.......................................................................................................................................................... 729
Configure Spanning Tree...............................................................................................................................................729
Important Points to Remember................................................................................................................................... 730
Configuring Interfaces for Layer 2 Mode...................................................................................................................731
Enabling Spanning Tree Protocol Globally.................................................................................................................732
Adding an Interface to the Spanning Tree Group................................................................................................... 733
Modifying Global Parameters....................................................................................................................................... 734
Modifying Interface STP Parameters.........................................................................................................................735
Enabling PortFast............................................................................................................................................................735
Preventing Network Disruptions with BPDU Guard...............................................................................................736
Selecting STP Root........................................................................................................................................................ 738
STP Root Guard.............................................................................................................................................................. 738
Root Guard Scenario................................................................................................................................................ 738
Configuring Root Guard...........................................................................................................................................739
Enabling SNMP Traps for Root Elections and Topology Changes......................................................................740
STP Loop Guard.............................................................................................................................................................. 740
Configuring Loop Guard........................................................................................................................................... 741
Displaying STP Guard Configuration.......................................................................................................................... 742
Chapter 53: System Time and Date............................................................................................743
Network Time Protocol..................................................................................................................................................743
Protocol Overview.................................................................................................................................................... 744
Configure the Network Time Protocol.................................................................................................................744
Enabling NTP..............................................................................................................................................................744
Configuring NTP Broadcasts..................................................................................................................................745
Disabling NTP on an Interface................................................................................................................................745
Configuring a Source IP Address for NTP Packets.......................................................................................... 745
Configuring NTP Authentication........................................................................................................................... 746
Time and Date..................................................................................................................................................................748
Configuration Task List ...........................................................................................................................................748
Setting the Time and Date for the Switch Software Clock............................................................................748
Setting the Timezone...............................................................................................................................................749
Set Daylight Saving Time........................................................................................................................................ 749
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