Component Redundancy

The router is designed so that no single point of failure can cause the entire system to fail. The following hardware components contribute to system redundancy:

• Cooling system—When the temperature inside the router is below the acceptable maximum, the cooling system's components function at less than full speed. If the temperature becomes excessive—for example, because a cooling system component is removed—the SCB automatically increases the speed of the remaining components to reduce the temperature. The cooling system can function at the higher speed indefinitely. For more information, see Cooling System.
• Power supply—The router has two load-sharing power supplies to distribute power to the other components. If one power supply fails, the second power supply can provide full power to the router's components indefinitely. For more information, see Power Supplies.