Users Guide

Viewing SupportAssist Configuration.................................................................................................................921
56 System Time and Date..................................................................................................................................... 923
Network Time Protocol........................................................................................................................................ 923
Protocol Overview........................................................................................................................................... 924
Configure the Network Time Protocol........................................................................................................924
Enabling NTP.....................................................................................................................................................925
Configuring NTP Broadcasts......................................................................................................................... 925
Disabling NTP on an Interface.......................................................................................................................925
Configuring a Source IP Address for NTP Packets....................................................................................926
Configuring NTP Authentication.................................................................................................................. 926
Time and Date........................................................................................................................................................ 928
Configuration Task List .................................................................................................................................. 928
Setting the Time and Date for the Switch Software Clock..................................................................... 929
Setting the Timezone...................................................................................................................................... 929
Set Daylight Saving Time................................................................................................................................930
Setting Daylight Saving Time Once..............................................................................................................930
Setting Recurring Daylight Saving Time......................................................................................................930
Configuring a Custom-defined Period for NTP time Synchronization.................................................931
57 Tunneling ...........................................................................................................................................................933
Configuring a Tunnel............................................................................................................................................ 933
Configuring Tunnel Keepalive Settings............................................................................................................. 934
Configuring a Tunnel Interface...........................................................................................................................934
Configuring Tunnel allow-remote Decapsulation..........................................................................................935
Configuring Tunnel source anylocal Decapsulation......................................................................................935
Multipoint Receive-Only Tunnels.......................................................................................................................935
Guidelines for Configuring Multipoint Receive-Only Tunnels............................................................... 936
58 Upgrade Procedures.........................................................................................................................................937
Upgrade OverviewGet Help with Upgrades..................................................................................................... 937
Bootup and Upgrades........................................................................................................................................... 937
59 Uplink Failure Detection (UFD)...................................................................................................................... 938
Feature Description............................................................................................................................................... 938
How Uplink Failure Detection Works.................................................................................................................939
UFD and NIC Teaming..........................................................................................................................................940
Important Points to Remember..........................................................................................................................940
Configuring Uplink Failure Detection................................................................................................................ 941
Clearing a UFD-Disabled Interface.................................................................................................................... 942
Displaying Uplink Failure Detection................................................................................................................... 943
Sample Configuration: Uplink Failure Detection.............................................................................................945
60 Virtual LANs (VLANs)........................................................................................................................................ 947
Default VLAN...........................................................................................................................................................948
Port-Based VLANs................................................................................................................................................. 948
VLANs and Port Tagging.......................................................................................................................................949
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