Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 382
Troubleshooting Packet Loss
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When a temperature threshold is crossed (either below or above the pre-configured value), the system logs an event that contains information about the time when the event occurred, the type of event (minor, major, or shutdown), the current temperature of the sensor, and the identity of the sensor. The system also logs events when the fan speeds change (increase or decrease) as a result of changes in sensor temperature. To display the event log, use the show logging command. The following examples display over-temperature event messages. Note that although the minimum speed for system fans is 40% of full speed, the corresponding power-supply fan speed is 60% of full speed. 00:21:47: %SYSTEM:LP %CHMGR-2-FAN_SPEED_CHANGE: Fan speed changed to 40 % of the full speed 00:21:47: %SYSTEM:LP %CHMGR-2-PSU_FAN_SPEED_CHANGE: PSU_Fan speed changed to 60 % of the full speed 00:27:35: %SYSTEM:LP %POLLMGR-2-SENSOR_TEMP_CHANGE: Switching Core Sensor S2, temperature 52C, changed to Major state When the system experiences a high temperature on any temperature sensor that exceeds the Critical threshold, a shutdown log event is generated; for example: Dell#Jun 18 01:57:03: %RPM1-P:CP %CHMGR-2-TEMP_SHUTDOWN_WARN: WARNING! linecard 11 temperature is 110C; approaching shutdown threshold of 110C) Dell#Jun 18 01:57:04: %RPM1-P:CP %CHMGR-0-TEMP_SHUTDOWN_WARN: linecard 11 temperature exceeded or equal to shutdown temperature 110C; Unit will shutdown now.Power cycle the unit to power it on. The identity of the sensor which caused the shutdown can be determined by displaying the system log for temperature-crossing events (show environment thermal-sensors command). 00:16:08: %SYSTEM:LP %CHMGR-0-TEMP_SHUTDOWN_WARN: Unit 0 a temperature sensor has exceeded its critical shutdown temperature; Unit will shutdown now. Power cycle the unit to power it on. After the system shuts down, it is not possible to operate the console until you reload (power cycle) the system. NOTE: The systems fan trays and power supplies always blow air from the front (I/O side) to the back (Utility/power supply and fan side) of the switch. Ensure the air ducts are clean and that all fans (system fans and power-supply fans) are working correctly. Ensure that there are fan alarms, including fan-tray and power-supply fan alarms. Use the show alarms command to display alarm information and the show environment command to display the current operational status of power supplies and fan-tray components. Troubleshooting Packet Loss Use show hardware linecard commands to troubleshoot packet loss. • show hardware linecard cpu data-plane statistics • show hardware party-bus port {{0-7} | all} statistics • show hardware linecard {0-2} drops unit {0-3} port {1-104} • show hardware linecard {0-2} unit {0-3} {counters | details | port-stats [detail] | register | execute-shell-cmd | ipmc-replication | table-dump} • show hardware {layer2| layer3} {e.g. acl |in acl} linecard {0-2} port-set {0-3} Debugging and Diagnostics 382
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-
1,151
-
1,152
-
1,153
-
1,154
-
1,155
-
1,156
-
1,157
-
1,158
-
1,159
-
1,160
-
1,161
-
1,162
-
1,163
-
1,164
-
1,165
-
1,166
-
1,167
-
1,168
-
1,169
-
1,170
-
1,171
-
1,172
-
1,173
-
1,174
-
1,175
-
1,176
-
1,177
-
1,178
-
1,179
-
1,180
-
1,181
-
1,182
-
1,183
-
1,184
-
1,185
-
1,186
-
1,187
-
1,188
-
1,189
-
1,190
-
1,191
-
1,192
-
1,193
-
1,194
-
1,195
-
1,196
-
1,197
-
1,198
-
1,199
-
1,200
-
1,201
-
1,202
-
1,203
-
1,204
-
1,205
-
1,206
-
1,207
-
1,208
-
1,209
-
1,210
-
1,211
-
1,212
-
1,213
-
1,214
-
1,215
-
1,216
-
1,217
-
1,218
-
1,219
-
1,220
-
1,221
-
1,222
-
1,223
-
1,224
-
1,225
-
1,226
-
1,227
-
1,228
-
1,229
-
1,230
-
1,231
-
1,232
-
1,233
-
1,234
-
1,235
-
1,236
-
1,237
-
1,238
-
1,239
-
1,240
-
1,241
-
1,242
-
1,243
-
1,244
-
1,245
-
1,246
-
1,247
-
1,248
-
1,249
-
1,250
-
1,251