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Catalyst 3850 Switch Hardware Installation Guide
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Chapter 6 Troubleshooting
Finding the Switch Serial Number
Finding the Switch Serial Number
If you contact Cisco Technical Assistance, you need to know the switch serial number. Figure 6-1 shows
the serial number location. You can also use the show version privileged EXEC command to see the
switch serial number.
Figure 6-1 Switch Serial Number Location
Replacing a Failed Data Stack Member
To replace a failed data stack member:
1. The replacement switch must be a Catalyst 3850 switch.
2. Power down the failed switch. Remove AC or DC input power, and if the switch is part of a
StackPower stack, remove the StackPower cables.
3. Make sure the replacement switch is powered off, and then connect it to the stack.
If you had manually set the member numbers for the switch stack, manually assign the member
number of the failed switch to the replacement switch. To manually assign the stack member
number, see the switch software configuration guide on Cisco.com.
4. Make the same Gigabit Ethernet connections on the replacement switch that were on the failed
switch.
5. Reinstall any modules and cable connections.
6. Power on the replacement switch.
The replacement switch will have the same configuration for all the interfaces as the failed switch and
will function the same as the failed switch.
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