Troubleshooting guide

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3. Troubleshooting Functional Failures During Operation
This chapter describes what actions to take when a problem occurs, such as when a Switch
does not operate correctly or cannot communicate.
3.1 Login-related problems
3.2 Operation terminal problems
3.3 Problems occurring while saving files
3.4 Network interface communication failures
3.5 Layer 2 network communication failures
3.6 IPv4 network communication failures
3.7 Layer 2 authentication communication failures
3.8 Communication failures in the high-reliability functionality based on a redundant configuration
3.9 SNMP communication failures
3.10 Communication failures in the neighboring device management functionality
3.11 NTP communication failures
3.12 Communication failures in the IEEE 802.3ah/UDLD functionality
3.13 Communication failures in filtering and QoS configurations
3.14 Port mirroring failures
3.15 Power saving functionality failures
3.16 Failures occurring when long-life solution is supported