C-Series Debugging and Diagnostics | 116760C-Series Debugging and DiagnosticsIn addition to standard manageability features such as LEDs, SNMP alarms and traps, and Syslogging, theC-Series supports several diagnostic and debugging features that are crucial to isolating and resolvingsupport issues during the operations and maintenance phase.• Switch Fabric overview on page 1168• Switch Fabric link monitoring on page 1168• Runtime hardware status monitoring on page 1170• Inter-CPU timeouts on page 1172• Bootup diagnostics on page 1173• Recognizing bootup failure on page 1173• Troubleshoot bootup failure on page 1173• Environmental monitoring on page 1173• Recognize an overtemperature condition on page 1174• Troubleshoot an overtemperature condition on page 1174• Recognize an under-voltage condition on page 1175• Troubleshoot an under-voltage condition on page 1175• Trace logs on page 1175• Automatic trace log updates on page 1176• Save a hardware log to a file on the flash on page 1176• Manual reload messages on page 1177• Command history on page 1178• Advanced debugging commands on page 1179• Monitoring hardware components with SNMP on page 1182• Hardware watchdog timer on page 1183• Offline diagnostics on page 1184• Buffer tuning on page 1189• When to tune buffers on page 1190• Buffer tuning commands on page 1191• Sample configuration on page 1194
