Table 2-6 Indicators on the fan module
Indicator Description
FAN indicator If the indicator is steady green, it indicates that the fan module works
normally.
The indicator is off when the fan module is unregistered, powered
off, or has a hardware fault.
If the indicator is steady red, it indicates that the fan module fails.
2.4 Data Plane
2.4.1 Introduction to the Data Plane
NPUs are key parts on the NE40E-X2 and are responsible for data processing and data switching
between PICs and NPUIs.
The procedure for data processing is as follows:
1. The IP packets sent from PICs and 2x10G interfaces on an NPU converge at a convergence
module.
2. The NP processes the IP packets.
3. The TM module performs traffic management on the IP packets.
4. The Fabric Interface Chip (FIC) performs IP packet switching.
HUAWEI NE40E-X1 & NE40E-X2 Universal Service
Router
Hardware Description 2 NE40E-X2 Hardware Description
Issue 02 (2011-09-10) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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