Huawei SE2900 - Base Topology Structure

HUAWEI SE2900 Session Border Controller
Hardware Description
1 Service Processing Device
Issue 01 (2016-01-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
31
Figure 1-23 CAN bus connections
Topology
The bus topology is used for CAN bus connections. The CAN bus works as follows:

The MXUs are the management units, and the service boards are the managed units in
the subrack. The management and managed units communicate with each other.

Each board is connected to the CAN bus through two independent channels. If one
channel is unavailable, the other channel is used to ensure uninterrupted communication.
1.5.2 Base Topology Structure
Functions
The Base plane serves as the management and control plane in the subrack. It provides
channels for loading software and transmitting alarms and maintenance information.
Figure 1-24 shows the Base plane connections.
Figure 1-24 Base plane connections