Users Guide

Stack Master Election..................................................................................................................226
Failover Roles.............................................................................................................................. 226
MAC Addressing.......................................................................................................................... 227
Stacking LAG................................................................................................................................227
Stacking VLANs............................................................................................................................227
Stacking Port Numbers.....................................................................................................................228
Stacking in PMUX Mode................................................................................................................... 230
.....................................................................................................................................................230
Configuring a Switch Stack.............................................................................................................. 230
Stacking Prerequisites................................................................................................................. 231
Master Selection Criteria............................................................................................................. 231
Configuring Priority and stack-group.........................................................................................231
Cabling Stacked Switches...........................................................................................................232
Accessing the CLI........................................................................................................................233
Configuring and Bringing Up a Stack.........................................................................................233
Adding a Stack Unit.....................................................................................................................234
Resetting a Unit on a Stack.........................................................................................................234
Removing an Aggregator from a Stack and Restoring Quad Mode......................................... 235
Configuring the Uplink Speed of Interfaces as 40 Gigabit Ethernet...............................................235
Merging Two Operational Stacks..................................................................................................... 237
Verifying a Stack Configuration........................................................................................................237
Using Show Commands............................................................................................................. 237
Troubleshooting a Switch Stack...................................................................................................... 240
Failure Scenarios..........................................................................................................................241
Upgrading a Switch Stack.................................................................................................................244
Upgrading a Single Stack Unit..........................................................................................................245
18 Broadcast Storm Control..............................................................................247
Supported Modes..............................................................................................................................247
Disabling Broadcast Storm Control..................................................................................................247
Displaying Broadcast-Storm Control Status....................................................................................247
Configuring Storm Control...............................................................................................................247
19 System Time and Date...................................................................................249
Supported Modes............................................................................................................................. 249
Setting the Time for the Software Clock......................................................................................... 249
Setting the Timezone....................................................................................................................... 250
Setting Daylight Savings Time..........................................................................................................250
Setting Daylight Saving Time Once............................................................................................250
Setting Recurring Daylight Saving Time..................................................................................... 251
20 Uplink Failure Detection (UFD)....................................................................253
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