Sfui-40-B - Huawei Eudemon8000E Series Manual

HUAWEI Eudemon8000E Firewall
Hardware Description
Crossbar-Memory (M-C-M) to provide a three-level switching mode. Level-1 and level-3
switching use a shared-memory model and are performed on LPUs; level-2 switching uses a
Crossbar model and is performed on SFUs.
E8000E-X16.
Figure 2-15 Switching network of the E8000E-X16
The level-1 switching chip on one LPU is fully connected to the level-2 switching chips on SFUs.
The level-2 switching chips on the SFUs are also fully connected to the level-3 switching chip
on another LPU. In addition, the level-2 crossbar switching chips work in load balancing mode
on multiple switching planes. The entire switching network is unblocked. The following
describes how data packets are transmitted across the switching network.
1.
2.
3.

2.8.2 SFUI-40-B

This section describes the appearance, panel, and indicators of SFUI-40-B.
Appearance
As shown in
This ensures a non-blocked switching network.
Issue 01 (2012-11-07)
Data packets enter an LPU through physical interfaces and are fragmented into cells of a
fixed length. These cells are then sent to the level-1 switching chips. After being buffered
and scheduled, the cells enter the crossbar switching chips on the SFU. The level-1
switching chip on an LPU is fully connected with all of the level-2 switching chips. As a
result, the same number of cells can be distributed to each level-2 switching plane. This
implements load balancing on switching planes and facilitates fault tolerance.
After the cells reach the crossbar switching chips, the crossbar switching chips schedule
the cells to the corresponding outbound interfaces according to the destination interfaces
of the data packets. The cells are then sent to the level-3 switching chips on another LPU.
At this point, the switching of the cells by the level-2 switching chips is completed.
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 2-16, the SFUI-40-B on the E8000E-X16 switches data for the entire system.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2 E8000E-X16 Chassis Overview
Figure 2-15 shows the switching network of the
22