Reference Guide

Table Of Contents
Configuring NTP Authentication.................................................................................................................... 813
FTOS Time and Date............................................................................................................................................. 815
Configuration Task List ..................................................................................................................................815
Setting the Time and Date for the Switch Hardware Clock........................................................................... 816
Setting the Time and Date for the Switch Software Clock.............................................................................816
Setting the Timezone......................................................................................................................................816
Set Daylight Saving Time............................................................................................................................... 817
Setting Daylight Saving Time Once................................................................................................................817
Setting Recurring Daylight Saving Time........................................................................................................ 818
52 Tunneling ............................................................................................................................... 821
Configuring a Tunnel.............................................................................................................................................821
53 Uplink Failure Detection (UFD)............................................................................................823
Feature Description.............................................................................................................................................. 823
How Uplink Failure Detection Works....................................................................................................................824
UFD and NIC Teaming...........................................................................................................................................825
Important Points to Remember.............................................................................................................................825
Configuring Uplink Failure Detection....................................................................................................................826
Clearing a UFD-Disabled Interface.......................................................................................................................827
Displaying Uplink Failure Detection......................................................................................................................829
Sample Configuration: Uplink Failure Detection...................................................................................................831
54 Upgrade Procedures............................................................................................................ 833
Get Help with Upgrades........................................................................................................................................833
55 Virtual LANs (VLANs)............................................................................................................835
Default VLAN........................................................................................................................................................ 835
Port-Based VLANs................................................................................................................................................836
VLANs and Port Tagging.......................................................................................................................................836
Configuration Task List......................................................................................................................................... 837
Creating a Port-Based VLAN..........................................................................................................................837
Assigning Interfaces to a VLAN..................................................................................................................... 838
Moving Untagged Interfaces......................................................................................................................... 839
Assigning an IP Address to a VLAN...............................................................................................................840
Configuring Native VLANs.................................................................................................................................... 841
Enabling Null VLAN as the Default VLAN............................................................................................................. 841
56 Virtual Link Trunking (VLT)...................................................................................................843
Overview...............................................................................................................................................................843
VLT on Core Switches.................................................................................................................................... 844
Enhanced VLT.................................................................................................................................................844