Netgear XCM8810 Chassis User Manual - Page 202
Using the System Health Checker
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NETGEAR 8800 User Manual Using the System Health Checker The system health checker is a useful tool to monitor the overall health of your system. Depending on your platform, the software performs a proactive, preventive search for problems by polling and reporting the health of system components, including I/O and management module processes, power supplies, power supply controllers, and fans. By isolating faults to a specific module, backplane connection, control plane, or component, the system health checker notifies you of a possible hardware fault. This section describes the system health check functionality of the NETGEAR 8800. This section also describes the following topics: • Enabling Diagnostic Packets on NETGEAR 8800 Switches on page 203 • Configuring Diagnostic Packets on the Switch on page 203 • Disabling Diagnostic Packets on the Switch on page 203 • Displaying the System Health Check Setting on page 203 Understanding the System Health Checker On NETGEAR 8800 series switches, the system health checker tests the backplane, the CPUs on the MSM modules, the I/O modules, the processes running on the switch, and the power supply controllers by periodically forwarding packets and checking for the validity of the forwarded packets. Two modes of health checking are available: polling (also known as control plane health checking) and backplane diagnostic packets (also known as data plane health checking). These methods are briefly described in the following: • Polling is always enabled on the system and occurs every 5 seconds by default. The polling value is not a user-configured parameter. The system health checker polls the control plane health between MSMs and I/O modules, monitors memory levels on the I/O module, monitors the health of the I/O module, and checks the health of applications and processes running on the I/O module. If the system health checker detects an error, the health checker notifies the MSM. • Backplane diagnostic packets are disabled by default. If you enable this feature, the system health checker tests the data link for a specific I/O module every 5 seconds by default. The MSM sends and receives diagnostic packets from the I/O module to determine the state and connectivity. If you disable backplane diagnostics, the system health checker stops sending backplane diagnostic packets. For more information about enabling and configuring backplane diagnostics, see the following sections: • Enabling Diagnostic Packets on NETGEAR 8800 Switches on page 203 • Configuring Diagnostic Packets on the Switch on page 203 202 | Chapter 8. Status Monitoring and Statistics
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