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Cisco ASA 5500 Series Configuration Guide using ASDM
Chapter81 Troubleshooting
Additional Troubleshooting
Symptom IPsec tunnels do not duplicate during a failover to the standby device.
Possible Cause The switch port that the ASA is plugged into is set to 10/100 instead of 1000.
Recommended Action Set the switch port that the ASA is plugged into to 1000.
Additional Troubleshooting
This section includes additional information about troubleshooting your ASA.
Maximum configuration sizeā€”ASDM supports a maximum configuration size of 512 KB. If you exceed
this amount you may experience performance issues. For example, when you load the configuration, the
status dialog shows the percentage of the configuration that is complete, yet with large configurations it
stops incrementing and appears to suspend operation, even though ASDM might still be processing the
configuration. If this situation occurs, we recommend that you consider increasing the ASDM system
heap memory.
To increase the ASDM heap memory size, modify the launcher shortcut by performing the following
procedure:
Step1 Right-click the shortcut for the ASDM-IDM Launcher, and choose Properties.
Step2 Choose the Shortcut tab.
Step3 In the Target field, change the argument prefixed with "-Xmx" to specify your desired heap size. For
example, change it to -Xmx768m for 768 MB or -Xmx1g for 1 GB. For more information about this
parameter, see the Oracle document in the following location:
http://docs.oracle.com/javase/1.5.0/docs/tooldocs/windows/java.html