HUAWEI NetEngine40E Universal ServiceRouter
Hardware Description
2 NE40E-X16 Chassis Overview
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Copyright © Huawei Technologies Co., Ltd.
3. After the cells reach the level-3 switching chips on another LPU, the system searches for
the destination interfaces. Once found, the cells are reassembled and sent out through
physical interfaces. At this point, switching of the data packets is completed.
Figure 2-15 Switching network of the NE40E
Crossbar
Forwarding
Table
Forwarding
Decision
IP DATA
Forwarding
Table
Forwarding
Decision
IP DATA
Forwarding
Table
Forwarding
Decision
IP DATA
Memory Memory
Memory Memory
Memory Memory
IP DATA
IP DATA
IP DATA
SFU
LPU LPU
Reliability
The NE40E-X16 has four SFUs that work in 3+1 load balancing mode. The four SFUs load
balance services at the same time. When one SFU is faulty or being replaced, the other three
SFUs automatically take over its tasks to ensure normal delivery of services,thus improving
system reliability.
2.4.2 Switch Fabric Unit B
Appearance
The Switch Fabric Unit B(SFUI-200-B) is the new generation switch boards, it supports 200G
full duplex capacity per slot. Switch Fabric Unit B(SFUI-200-B)switches data for the entire
system at line speed of 3.15 Tbit/s. This ensures a non-blocked switching network.
The NE40E-X16 has four SFUs working in 3+1 load balancing mode. The entire system
provides a switching capacity at wire speed of 12.58 Tbit/s.
The four SFUs load balance services at the same time. When one SFU is faulty or being
replaced, the other three SFUs automatically take over its tasks to ensure normal delivery of
services.
Figure 2-16shows the appearance of the Switch Fabric Unit B(SFUI-200-B).