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Figure 6. Simplified Cisco Catalyst 3850 Switch Physical Versus Logical View
The system roles in the new resilient StackWise-480 architecture can be verified using the show switch EXEC
command. The network administrator can check the current state of each member switch in the stack ring and
identify the switch that is in hot-standby mode. The hot-standby switch assumes the active role when it detects a
failure of the primary active switch.
This example shows the output of the show switch command used to display the switch roles in a configuration:
Plug-and-Play Stack Deployment
Stack architecture allows network expansion when additional ports are required in the wiring closet. The hardware
and software architecture of the Cisco Catalyst 3850 Switch allows you to insert new Cisco Catalyst 3850 Switches
in a stack ring without major network disruption. The system and management operation, network configuration,
and topologies remain transparent to the network, providing nonstop business communication during the upgrade.
This example shows the output of the show switch stack-ports summary command:
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