Specifications

Setting the System Recovery Level
ExtremeWare XOS 11.0 Concepts Guide 131
1 Enable backplane diagnostic packets on slot 3 using the following command:
enable sys-health-check slot 3
When you enable backplane diagnostic packets on slot 3, the polling timer changes from its current
default value of 60 seconds to 6 seconds; 6 seconds is the default for sending backplane diagnostic
packets.
2 Configure backplane diagnostic packets to be sent every 7 seconds and update the polling rate to 7
seconds using the following command:
configure sys-health-check interval 7
NOTE
Extreme Networks does not recommend configuring an interval of less than 6 seconds. Doing this
can cause excessive CPU utilization.
To disable sending backplane diagnostic packets on slot 3, use the following command:
disable sys-health-check slot 3
Backplane diagnostic packets are no longer sent, and the polling interval goes from 7 seconds to 70
seconds.
For more information about the system health check commands, see the chapter “Commands for Status
Monitoring and Statistics” in the ExtremeWare XOS Command Reference Guide.
Setting the System Recovery Level
You can configure the system either to take no action or to automatically reboot the switch after a
software task exception, using the following command:
configure sys-recovery-level [all | none]
Where the following is true:
• all—Configures ExtremeWare XOS to log an error into the syslog and automatically reboot the
system after any task exception.
• none—Configures the level to no recovery.
The default setting is all.
Event Management System/Logging
We use the general term, event, for any type of occurrence on a switch that could generate a log
message or require an action. For example, a link going down, a user logging in, a command entered on
the command line, or the software executing a debugging statement, are all events that might generate a
log message. The system for saving, displaying, and filtering events is called the Event Management
System (EMS). With EMS, you have many options about which events generate log messages, where the
messages are sent, and how they are displayed. Using EMS you can:
• Send event messages to a number of logging targets (for example, syslog host and NVRAM)