Classic high-end core switches ensure single point of failure

With the development of China's exchange industry, it also promotes the wide application of high-end core switches. After years of development, redundancy has become one of the mainstream design methods. At present, many industry users use a single device design for their network core and aggregation layer, such as a single core, or deploy a high-end core switch ), in this case, a single core device is required to provide high-reliability support.

In the design philosophy of ruijie high-end intelligent high-availability IP address, the technical concept of fault-free single point design is adopted for the deployment of a single high-end core switch to ensure the high availability of Single Point Core. RG-S8600 fully considers the design of high reliability in product hardware design. All hardware components are designed with redundancy.

1. Dual-engine hot standby Design

When the device starts, the main engine synchronizes the configuration information, system information, Line Card, fan, power supply, and other information from the device to the backup engine. During subsequent operations, the master engine synchronizes the information to the backup engine incrementally. When the primary engine fails, the backup engine takes over from the primary engine, and the line card keeps the FIB forwarding table unchanged. At the same time, the backup engine retains various information synchronized from the primary engine to ensure uninterrupted data forwarding.

2. Power Supply adopts 1 + 1 Redundancy Design

RG-S8600 single power supply can load the power supply of the entire high-end core switch, using 1 + 1 backup mode, when a power supply problems, another power supply can replace the main power supply, ensure that the device power supply. Load Balancing is supported when both power supplies are enabled. In this way, the original power supply is shared with two power supplies, reducing power consumption. When a power supply fails, the other power supply can also load the power supply of the entire device.

3. Hot swapping Design

Users are allowed to take out and replace damaged power supplies, boards, and other components without shutting down the system, thus improving the system's timely disaster recovery capability, scalability and flexibility.

4. Multi-fan Redundancy Design

RG-S8600 adopts multi-Fan Design, Fan distribution in the back of the chassis left, center, right three parts. Heat dissipation is performed on the chassis to ensure a balanced internal temperature. This design is very beneficial for devices to be placed in the wiring room without air conditioning equipment and devices are placed in the building for convergence ). In the left, center, and right sections, multiple fans are working on and off two 1 + 1 backups at the same time). Even if one fan breaks down, the backup fan can be used for heat dissipation, ensure temperature balance within the device

5. Passive Backplane Design

In the physical design of RG-S8600, engine, power supply, fan, wire card are redundant design. As a communication channel between the customer line card and the engine and the high-end core switch, the backboard is the most vulnerable part of the system and cannot be redundant.

The traditional backplane adopts the active design. If the ASIC chip or clock module on the active backplane encounters problems, the entire system data transmission is affected. Once a part on the backboard fails, the entire system stops working. Therefore, high-reliability system design usually requires the backplane to implement passive design. The RG-S8600 backplane does not have any active device, but is responsible for high-performance data transmission, achieving zero fault of the backplane.