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Company Introduction
Sigmatrix Technology Co., Ltd. was established in 2007. It researches and develops Quick Response (QR) code technologies and related applications. It is a high-tech enterprise recognized by the Beijing government and a well-known QR code technology and application service provider inside and outside of China. The company has excellent employees, many of whom graduated from prestigious universities. It has demonstrated strong innovative capabilities and holds numerous intellectual property rights related to QR codes.
Challenges
Traditional data center networks are classified into core, aggregation, and access layers based on device functions. In small- and medium-sized data centers, the core and aggregation layers are usually integrated. In large-scale data centers, a dedicated O&M layer is also configured.
The core layer, also called the Internet access layer. Is responsible for traffic forwarding. The core layer use routers enabled with Border Gateway Protocol (BGP) to interconnect with the backbone network and metropolitan area network (MAN).
As the internal data exchange core of data centers, the aggregation layer provides value-added services and interconnects with the core layer using Interior Gateway Protocol (IGP). Value-added service devices include firewalls, load balancing switches, and routers.
The access layer uses Layer 2 or Layer 3 switches to interconnect with the aggregation layer. An access switch connects to an operator or a customer's management server using the network interface card (NIC) of the customer server.
Data centers using this original three-layer architecture often encounter the following problems:
- Multiple network layers: The three-layer network architecture involves many data traffic processing steps, which increases the network latency. This architecture cannot ensure high reliability for real-time data exchange between servers and distributed traffic transmission.
- Unstable Layer 2 network: The Layer 2 network uses STP. As a result, the network is unstable, the convergence speed is low, and the link usage is low.
- Complicated management and maintenance: This type of architecture involves a large number of network devices. It is difficult to expand, migrate, or add new services. Any changes involve multiple physical facilities associated with each other and deployed at different stages based on different requirements. It concerns multiple domains and service directions, and involves a heavy workload and difficult maintenance, which is prone to errors.
- High construction and operation costs: In most cases, each application uses one dedicated server, so resources cannot be fully utilized.
Solution
In addition to meeting the requirements of traditional data center services (such as normal traffic exchange between sites, content backup and synchronization, content backup between key customer sites, remote disaster recovery, and traffic requiring security control or quality assurance), HUAWEI CLOUD also develops new services, such as remote server clustering, online VM migration, and remote customer data integration and migration.
- Network availability: HUAWEI CLOUD uses an elastic architecture to provide high availability, fault tolerance, and redundancy.
- System security: Data generated in different cloud data centers is isolated in separate availability zones (AZs). Security and access control are implemented to ensure data security of the data center and disaster recovery center.
- Service reliability: Consistency between the host layer, the network layer, and the storage layer is provided to ensure high QoS.
- Manageability: The routine O&M is simplified. Specifically, cloud computing resources on the entire network are centrally configured, managed, scheduled, and monitored, enabling unified management of business operations.
