ISR651101-00 D 6-16 Diagnostics andTroubleshootingDiagnostic information about the router is available through the chassis LEDs andthe port LEDs. Diagnostic information is also available through SANsurfer RouterManager and CLI event logs and error displays. This chapter describes thefollowing types of diagnostics: Chassis Diagnostics “Power-On Self-Test Diagnostics” on page 6-2 “LED Blink Patterns” on page 6-2This chapter also describes how to use maintenance mode to recover a disabledrouter (see “Recovering a Router” on page 6-4).Chassis DiagnosticsFigure 6-1 shows the chassis diagnostic LEDs, including the power LED and thesystem fault LED.Figure 6-1 Router Blade Diagnostic LEDsMGMT IOIOI FC1 FC2 GE1 GE1GE4 GE3 iSR6240Intelligent Storage RouteriSR6200 System10GbE1 iSR6250Intelligent Storage Router10GbE2Power LEDSystem Fault LEDHeartbeat LED
