Hardware Information of Huawei S2700&S5700&S6700 switch

Figure 1 shows the logical structure of hardware modules in the Huawei S2700&S5700&S6700 switch.

Hardware modules of the S2700&S5700&S6700 refer to the interface card, Switch Control Unit (SCU), power supply, and fan.

Figure 1 Logical structure of hardware modules 

SCU

The SCU is built in the S2700&S5700&S6700. Each switch has one SCU.

The SCU provides packet switching and device management. It integrates the main control module, switching module, and interface module.

Main Control Module

The main control module provides the following functions:

• Processes protocol packets.
• Manages the system and monitors the system performance according to instructions of the user, and reports the device running status to the user.
• Monitors and maintains the interface module and switching module.

Switching Module

The switching module (switching fabric) is responsible for packet exchange, multicast replication, QoS scheduling, and access control on the interface module of the SCU.

The switching module uses high-performance chips to provide rate-speed forwarding and fast switching of data with different priorities.

Interface Module

The interface module provides Ethernet interfaces for Ethernet service transmission.

Cards

Huawei S5700 supports service and stack cards. Service cards allow for flexible networking and provide cost-effective customized solutions. Stack cards connect multiple switches into one logical switch, which implements on-demand expansion, reduces costs, simplifies management, and improves network reliability.

Huawei S6700 switch supports service cards. Service cards allow for flexible networking and provide cost-effective customized solutions.