Related Documentation
Checking the Host Subsystem Status
Purpose
To obtain the host subsystem status.
Each host subsystem has three LEDs that display its status. The host subsystem LEDs are located on the right side of the craft interface.
Action
To check the host subsystem status, use the following operational mode command:
To check the host subsystem status, use the following operational mode command:
Meaning
On M320, T320, T640, and T1600 routers, the Front Panel System LEDs section of the command output shows the Routing Engine status. The state can be OK, Fail, or Master. An asterisk (*) indicates the operating state.
Check the LEDs on the Routing Engine and the Control Board faceplates at the rear of the router.
Check the Routing Engine or Host Subsystem LEDs on the craft interface. If the red LED is lit, look at the LCD display for more information about the cause of the problem.
Figure 1 shows the location of the Routing Engine LEDs on the M120 router craft interface.
Figure 1: M120 Router Host Subsystem Craft Interface LEDs
Table 1 describes the M120 router Routing Engine LED states.
Table 1: M120 Router Host Subsystem Craft Interface LEDs
Label | Color | State | Description |
FAIL | Red | On steadily | Host is offline. |
OK | Green | On steadily | Host is online and is functioning normally. |
MASTER | Green | On steadily | Host is functioning as master. |
Figure 2 shows the location of the Routing Engine LEDs on the M320 router craft interface.
Figure 2: M320 Router Host Subsystem Craft Interface LEDs
Table 2 describes the M320 router Routing Engine LED states.
Table 2: M320 Router Routing Engine Craft Interface LEDs
Label | Color | State | Description |
|---|---|---|---|
FAIL | Red | On steadily | Host is offline. |
OK | Green | On steadily | Host is online and is functioning normally. |
MASTER | Green | On steadily | Host is functioning as master. |
Figure 3 shows the location of the Host Subsystem LEDs on the T320, T640, and T1600 router craft interface.
Each host subsystem has LEDs, located on the upper right of the craft interface, which indicate its status. The LEDs labeled HOST0 show the status of the Routing Engine in slot RE0 and the Control Board in slot CB0. The LEDs labeled HOST1 show the status of the Routing Engine in slot RE1 and the Control Board in slot CB1.
Figure 3: T320, T640, and T1600 Router Host Subsystem Craft Interface LEDs
Table 3 describes the T320, T640, and T1600 router host subsystem LED states.
Table 3: T320, T640, and T1600 Router Host Subsystem Craft Interface LEDs
Label | Color | State | Description |
|---|---|---|---|
OK | Green | On steadily | Host is online and functioning normally. |
FAIL | Red | On steadily | Host is offline. |
MASTER | Green | On steadily | Host is functioning as master. |
Figure 4 shows the location of the Host Subsystem LEDs on the TX Matrix router craft interface.
Each host subsystem has three LEDs, located on the right of the craft interface, that indicate its status. The LEDs labeled HOST 0 show the status of the Routing Engine in slot RE0 and the TX-CB in slot CB0. The LEDs labeled HOST 1 show the status of the Routing Engine in slot RE1 and the TX-CB in slot CB1.
Figure 4: TX Matrix Router Host Subsystem Craft Interface LEDs
Table 4 describes the TX Matrix router host subsystem LED states.
Table 4: TX Matrix Router Host Subsystem Craft Interface LEDs
Label | Color | State | Description |
|---|---|---|---|
MASTER | Green | On steadily | Host is functioning as the master. |
ONLINE | Green | On steadily | Host is online and is functioning normally. |
OFFLINE | Green | On steadily | Host is offline. |
