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The H903MPLAE board is a control board. It is the core of the system control and service switching and aggregation. The H903MPLAE board can also function as the management and control core of the integrated network management system (NMS). It exchanges key management and control information with service boards through the master/slave serial port and in-band GE/10GE channel. In this manner, the H903MPLAE board configures, manages, and controls the device, and also implements the simple route protocol functions.
Figure 1 Appearance
Please refer to "Comparison of Control Boards".
Parent Topic: Control Board
Figure 2 Working principle of the H903MPLAE board
| Indicates the control signal channel. |
| Indicates the service signal channel. |
| Control module: manages the entire board and the service boards, and communicates with the fan tray through the extended serial port. |
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| Indicates the power or clock signal channel. |
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Parent Topic: Control Board
For details about supported optical module, see 10GE Optical Module and GE Optical/Electrical Module.
NOTE:
The default rate of the upstream port or cascade port is 10000 Mbit/s (10GE). The rate can be set to 1000 Mbit/s (GE) or 100 Mbit/s by running the speed command.
Parent Topic: Control Board
Indicator | Name | Color | Status | Meaning |
|---|---|---|---|---|
RUN/ALM | Running status indicator | Green | Blinking slowly (on for 1 s and off for 1 s repeatedly) | The board functions properly |
Green | Blinking quickly (on for 0.25 s and off for 0.25 s repeatedly) | Indicates that program loading is in progress | ||
Orange | Blinking | A high-temperature alarm is generated | ||
Red | On | The board is faulty | ||
Red | Blinking (on for 0.25 s and off for 0.25 s repeatedly) | The board is starting up | ||
ACT | Load sharing status indicator | Green | On | The board is active |
Green | Blinking (on for 1 s and off for 1 s repeatedly) | The board is standby | ||
Red | On | If load sharing is abnormal, the board is in active state | ||
Red | Blinking (on for 1 s and off for 1 s repeatedly) | If load sharing is abnormal, the board is in standby state | ||
LINK/ACT 0-3 | Link/data status indicator | Green | On | A connection is set up on the port |
Green | Blinking | Data is being transmitted | ||
- | off | No connection is set up on the port |
Parent Topic: Control Board
