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Saving and restoring monitor configurations

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Saving and restoring monitor configurations

To prevent the switch configuration flash from running out of memory, the number of monitors 
saved to flash memory is limited as follows:

•

The total number of EE monitors per port is limited to 16.

•

The total number of frame monitors per port is limited to 16.

•

The total number of monitors per switch is limited to 512.

When there are more than 512 monitors in the system, monitors are saved to flash memory in the 
following order:

•

The EE monitors for each port (from 0 to MAX_PORT)

•

The frame monitors for each port

EE monitors get preference saving to flash memory when the total number of monitors in a switch 
exceeds 512. If the total number of monitors per port or switch exceeds the limit, then you will 
receive an error message indicating the count has been exceeded and that some monitors have 
been discarded.

1. Connect to the switch and log in as admin.

2. Type one of the following commands, depending on the action you want to perform:

•

To save the current end-to-end and frame monitor configuration settings into nonvolatile 
memory, use the perfCfgSave command:

switch:admin> perfcfgsave
This will overwrite previously saved Performance Monitoring
settings in FLASH. Do you want to continue? (yes, y, no, n): [no] y 
Please wait ...
Performance monitoring configuration saved in FLASH. 

•

To restore a saved monitor configuration, use the perfCfgRestore command. For example, 
to restore the original performance monitor configuration after making several changes:

switch:admin> perfcfgrestore
This will overwrite current Performance Monitoring settings in RAM. Do you 
want to continue? (yes, y, no, n): [no] y 
Please wait... Performance monitoring configuration restored from FLASH 
ROM.

•

To clear the previously saved performance monitoring configuration settings from 
nonvolatile memory, use the perfCfgClear command:

switch:admin> perfcfgclear
This will clear Performance Monitoring settings in FLASH. The RAM settings 
won’t change.  Do you want to continue? (yes, y, no, n): [no] y
Please wait... Committing configuration...done.
Performance Monitoring configuration cleared from FLASH.

Performance data collection

Data collected through Advanced Performance Monitoring is deleted when the switch is rebooted. 
Using the Data Center Fabric Manager (DCFM) Enterprise Edition, you can store performance data 
persistently. For details on this feature, see the DCFM User’s Manual (Enterprise Edition).