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Maintaining the T320 Host Subsystem



For optimum router performance, verify the condition of the host subsystem. The router can have one or two host subsystems. Each host subsystem consists of a Routing Engine and an adjacent control board.


On a regular basis:

  • Check the host subsystem LEDs (HOST0 and HOST1) on the craft interface. If the red HOST0 or HOST1 LED is lit, look at the LCD to get more information about the cause of the problem. For more information about the LEDs and the display, see T320 Craft Interface Description.

  • Check the LCD on the craft interface to view information about the status of the Routing Engines and control boards.