Administrator Guide

Adding an Interface to the Spanning Tree Group.........................................................................................................902
Modifying Global Parameters.......................................................................................................................................... 902
Modifying Interface STP Parameters.............................................................................................................................903
Enabling PortFast..............................................................................................................................................................903
Prevent Network Disruptions with BPDU Guard..........................................................................................................904
Selecting STP Root.......................................................................................................................................................... 905
STP Root Guard................................................................................................................................................................906
Root Guard Scenario.................................................................................................................................................. 906
Configuring Root Guard..............................................................................................................................................907
Enabling SNMP Traps for Root Elections and Topology Changes............................................................................. 907
STP Loop Guard................................................................................................................................................................907
Configuring Loop Guard............................................................................................................................................. 908
Displaying STP Guard Configuration.............................................................................................................................. 909
56 SupportAssist.........................................................................................................................910
Configuring SupportAssist Using a Configuration Wizard.............................................................................................911
Configuring SupportAssist Manually................................................................................................................................ 911
Configuring SupportAssist Activity..................................................................................................................................913
Configuring SupportAssist Company.............................................................................................................................. 914
Configuring SupportAssist Person...................................................................................................................................914
Configuring SupportAssist Server................................................................................................................................... 915
Viewing SupportAssist Configuration..............................................................................................................................916
57 System Time and Date............................................................................................................. 918
Network Time Protocol.....................................................................................................................................................918
Protocol Overview....................................................................................................................................................... 919
Configure the Network Time Protocol......................................................................................................................919
Enabling NTP................................................................................................................................................................ 919
Configuring NTP Broadcasts.....................................................................................................................................920
Disabling NTP on an Interface................................................................................................................................... 920
Configuring a Source IP Address for NTP Packets................................................................................................ 920
Configuring NTP Authentication................................................................................................................................921
Configuring NTP control key password....................................................................................................................923
Configuring the NTP Step-Threshold.......................................................................................................................923
Time and Date....................................................................................................................................................................923
Configuration Task List ..............................................................................................................................................923
Setting the Time and Date for the Switch Software Clock...................................................................................923
Setting the Timezone................................................................................................................................................. 924
Set Daylight Saving Time........................................................................................................................................... 924
Setting Daylight Saving Time Once.......................................................................................................................... 924
Setting Recurring Daylight Saving Time...................................................................................................................925
Configuring a Custom-defined Period for NTP time Synchronization................................................................. 926
58 Tunneling .............................................................................................................................. 927
Configuring a Tunnel.........................................................................................................................................................927
Configuring Tunnel Keepalive Settings...........................................................................................................................928
Configuring a Tunnel Interface........................................................................................................................................928
Configuring Tunnel allow-remote Decapsulation.......................................................................................................... 928
Configuring Tunnel source anylocal Decapsulation.......................................................................................................929
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