Juniper EX4200 Hardware Manual page 8

Replace a Member Switch With a Different Type of Switch That Changes the Virtual
Maintaining Virtual Chassis Cable | 230
Disconnecting a Virtual Chassis Cable from an EX4200 Switch | 230
Connecting a Virtual Chassis Cable to an EX4200 Switch | 231
Troubleshooting Hardware
5
Troubleshooting EX4200 Components | 234
Understand Alarm Types and Severity Levels on EX Series Switches | 234
Chassis Component Alarm Conditions on EX4200 Switches | 236
Check Active Alarms with the J-Web Interface | 240
Monitor System Log Messages | 241
Troubleshooting Network Interfaces on EX4200 Switches | 246
The interface on the port in which an SFP or SFP+ transceiver is installed is down | 246
Troubleshooting Virtual Chassis Port Connectivity on an EX4200 Switch | 247
Virtual Chassis port (VCP) connection does not work | 247
Troubleshooting Power Supply Installation Alarms on EX4200 Switches | 248
The Switch Displays the "Unsupported PSU" Alarm | 248
Troubleshooting PoE Voltage Injection Failure in EX2300, EX3400, or EX4300 Switch Models
with PoE Capability | 249
Troubleshoot Temperature Alarms in EX Series Switches | 249
Contacting Customer Support and Returning the Chassis or Components
6
Returning an EX4200 Switch or Component for Repair or Replacement | 256
Returning an EX4200 Switch or Component for Repair or Replacement | 256
Locating the Serial Number on an EX4200 Switch or Component | 257
Listing the Switch and Components Details with the CLI | 257
Locating the Chassis Serial Number ID Label on an EX4200 Switch | 258
Locating the Serial Number ID Labels on FRUs in an EX4200 Switch | 258
Contact Customer Support to Obtain Return Material Authorization | 258
Packing an EX4200 Switch or Component for Shipping | 259
Packing an EX4200 Switch for Shipping | 260
Packing EX4200 Switch Components for Shipping | 261
Chassis to Mixed Mode | 229
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