H3C S12500G-AF is a new generation of AI intelligent switch introduced by Xinhua 3 Technology Co., Ltd. (hereinafter referred to as H3C Company) for data centers and large-scale intelligent park scenarios. It provides ultra-high switching performance and rich network features in the industry, and can also provide stronger AI computing capability. Floating-point computing capability of 100T + is realized through built-in high-performance GPU. At the same time, S125G-AF is also the switch of network-specific AI algorithm introduced by Xinhua III and domestic scientific research institutions, which can carry out accurate traffic modeling, unknown traffic analysis and safe intelligent detection of the network. The CLOS + orthogonal hardware architecture adopted in the hardware design realizes the rate fusion of network nodes and computing nodes, providing 100 lossless data channels for network and AI computing.

S12500G-AF products include S12504G-AF, S12508G-AF and S12516G-AF models, which can adapt to the port density and performance requirements of different network sizes. They can be used as the core of data center network or the core switch of large smart park network. They support INT visualization technology and prophet network and are the only choice for users' core network carriers.

Advanced CLOS multilevel multiplane switching architecture

The advanced CLOS multi-level multi-plane switching architecture is adopted, the orthogonal no-middle-board design is adopted, the service board card and the switching network board are completely orthogonal design (90 degrees), the cross-line card service traffic is directly connected to the switching network board through the orthogonal connector, supporting cell switching, while the backplane routing is reduced to zero (greatly avoiding signal attenuation), greatly improving the system bandwidth and evolution capability, and the overall capacity can be smoothly expanded.

Support high density 10GE, 25GE, 40GE, 100GE and 400GE Ethernet ports, fully meet the needs of future application development.

Forwarding and control separation, switching network support 5 1 or 4 2 redundancy;

Redundant design for both fans and power supplies

AI-Inside-driven intelligent network

The S12500G-AF series switches support the Seerblade of high-performance AI computing modules, provide users with an intelligent computing platform that is deeply integrated with the network and has high-performance CPU, GPU and large storage capacity to meet the lightweight deployment of AI big data applications for small and medium-sized enterprise users.

Through the powerful computing power of high-performance GPU and high-speed network connection, floating-point computing power of 123TFlops can be achieved, which is a million times higher than traditional processors.

The network-specific intelligent algorithm jointly launched by the top units in the United Nations to improve the level of network intelligent management and performance standards.

Comprehensive IPv6 Solution

The S12500G-AF series fully supports IPv6 protocol family, supports IPv6 static routing, RIPng, OSPFv3, IS-ISv6, BGP4 and other IPV6 routing protocols, supports dynamic route redistribution, and supports rich IPv4 to IPv6 transition technologies, including IPv6 manual tunnel, 6to4 tunnel, ISATAP tunnel, GRE tunnel, IPv4 compatible automatic configuration tunnel and other tunnel technologies to ensure smooth transition from IPv4 to IPv6.

Full Virtualization Capabilities

IRF2(Intelligent Resilient Framework2, second generation intelligent resilient architecture)

S12500G-AF series switches support IRF2 technology, virtualize up to 4 high-end devices into one logical device, and have strong advantages in reliability, distribution and ease of management;

Reliability: through hot backup technology, the redundant backup of all information in the control plane and data plane and uninterrupted data forwarding are realized in the whole virtual architecture, which greatly enhances the reliability and high performance of the virtual architecture, eliminates single point of failure and avoids business interruption;

Distribution: through cross-device link aggregation technology, multiple uplink load sharing and mutual backup, thereby improving the redundancy of the entire network architecture and the utilization of link resources;

Easy management: The entire elastic architecture shares an IP management, simplifying network equipment management, simplifying network topology management, improving operational efficiency, and reducing maintenance costs. Support cluster or stack support out-of-band management

MDC(Multitenant Devices Context, multi-tenant appliance environment)

S12500G-AF series switches can realize 1:N virtualization capability through MDC technology, I .e. one physical switch can be virtualized into n logical switches and 16 logical switches can be virtualized to meet the needs of multiple customers sharing core switches. The ports of a single board are divided into different MDC, which can not only make full use of the capabilities of the core switch, but also reduce the investment cost of users, the MDC technology is used to realize the security isolation of the business.

Application Requirements for Cloud Computing Data Center

S12500G-AF series switches support VXLAN(Virtual eXtensible LAN, Extensible Virtual Local Area Network) technology. VXLAN is a layer 2 VPN technology based on IP network and encapsulated in "MAC in UDP. VXLAN can be based on the existing service provider or enterprise IP network, provide two-layer interconnection for scattered physical sites, and can provide service isolation for different tenants.

S12500G-AF series switches support EVPN(Ethernet Virtual Private Network, Ethernet Virtual Private Network). EVPN is a layer 2 VPN technology. The control plane uses MP-BGP to advertise EVPN routing information, and the data plane supports VXLAN encapsulation to forward messages.

S12500G-AF series switches support large layer 2 interconnection technology, which can realize large layer 2 interconnection through EVPN VXLAN and realize interconnection between multiple sites across data centers.

S12500G-AF series switches support FCoE(FC over Ethernet) technology; FCoE technology is mainly used to solve the problem of heterogeneity of LAN network and FC storage network in cloud computing data center. Through the deployment of FCoE and CEE technology, the integration of front-end network and back-end network architecture in data center can be realized, and the technical problem of separation of data, computing and storage networks can be solved, thus greatly reducing the procurement and expansion costs of data center.

The S12500G-AF series switches support large-capacity ARP/ND, MAC, and ACL entries, which can meet the flat networking requirements of large data center networks.

Application requirements for large-scale smart parks

S12500G-AF series switches adhere to H3C's open architecture design concept-open application architecture (OAA), and redefine the simple function of L2 to L3 message forwarding of traditional campus network core switches as a multi-service bearer platform integrating L2 to L7 deep service awareness, wired and wireless integration, IPv4/IPv6 integration, network traffic analysis and control and other multi-services.

S12500G-AF series switches support VxLAN/EVPN function, which can solve the cross-regional flexible intercommunication between large-scale park multi-regions and multi-organizations through large-scale two-layer technology, and realize advanced concepts such as automatic deployment and intelligent operation and maintenance of large-scale park networks in combination with SDN technology.

S12500G-AF series switches support multi-service line cards based on standard open architecture, and can deploy SDN controller software, ITOA data analysis system, network intelligent visual operation and maintenance system and other operation and maintenance software to solve the complex and diverse network operation and maintenance requirements of ultra-large-scale parks.

Innovative multi-engine control design

Using innovative hardware design, through independent control engine, detection engine, maintenance engine for the system to provide powerful control capabilities and 50ms high reliability guarantee.

Distributed control engine, all business boards are provided with a powerful control processing system, easy to deal with a variety of protocol messages and control messages, and support protocol message fine control, to provide the system with a sound ability to resist protocol message attacks;

Distributed detection engine, all service boards can be distributed BFD, OAM and other fast fault detection, and with the control plane protocol to implement linkage, support rapid protection switching and rapid convergence, can achieve millisecond-level fault detection, to ensure that the business is not interrupted;

Distributed maintenance engine, intelligent CPU system supports intelligent power management, can support single board sequential power on and off (reduce the power impact caused by single board power on at the same time, improve equipment life, reduce electromagnetic radiation, reduce system power consumption), equipment online status check.

Data Center Level Reliability Assurance

The S12500G-AF series switches provide a dedicated FFDR system for fast fault detection such as BFD and OAM, and are linked with the control plane protocol to support fast protection switching and fast convergence.

Supports BFD for VRRP, BGP, IS-IS, RIP, OSPF, RSVP, LDP, RIP, and static routing. Supports VLAN(4096) and MAC address 768K.

支持NSR/GR for OSFP/BGP/IS-IS/RSVP等。

The hardware of the control engine and the switching network board are independent of each other, realizing the physical separation of the control plane and the forwarding plane. The control engine is 1 1 redundant, and the main backup board supports remote control to actively switch the main backup mode. Switching network board N M redundancy, switching board supports hot plug, and traffic forwarding does not lose packets when plugging in single board or switching master control; Fan frame redundancy; Power supply module N M redundancy; Port cache can reach 914M; the fault isolation ability and reliability of the system are greatly improved.

l The S12500G-AF adopts the overall architecture design of data center-level reliability, which will bring a higher level of stable operation experience to the campus network.

Highly available M-LAG architecture

S12500G-AF series switches support M-LAG(Multichassis Link Aggregation Group) cross-device link aggregation technology (formerly DRNI technology). Cross-device link aggregation is realized by virtualizing two physical devices into one device at the forwarding level, keeping the control levels independent of each other, realizing dual-active access of devices, providing device-level redundancy protection and traffic load sharing, and improving system reliability.

Multi-level security protection

Multi-level protection and security of the control plane. The S12500G-AF control plane policy feature manages the message flow from the data plane (DP) to the control plane (CP) by configuring QoS filtering and speed limiting. It protects the S12500G-AF switch from DoS attacks to identify and protect important messages, discards illegal messages, and ensures that the control plane maintains normal forwarding and protocol state in the case of attacks or large traffic.

It supports a large number of ACL rules and can meet the requirements of full line speed forwarding. It can perform fine-grained security access control on various L2/IPv4/IPv6/MPLS packets and their field combinations.

It supports rich link-level reliability technologies, including protection protocols such as LACP/STP/RSTP/MSTP/Smart Link/RRPP fast ring network protection mechanism, 64 MSTP instances, and link failure can support device spanning tree recalculation.

Support to collect data through the Netstream, report to the security analysis system, the network security threat event information and the whole network security situation display, strategy linkage, to ensure network security

Comprehensive maintenance detection mechanism

The online status detection mechanism, through a dedicated maintenance engine, supports 1 1 hot standby, and can detect the switching network board, backplane communication channel, business communication channel, key chip, memory, etc. of the device. Once the relevant module fails, it is reported to the system through EMS.

The single board isolation function can isolate the specified single board from the forwarding plane and no longer participate in the forwarding of the forwarding plane, but the isolated single board is still in the control plane and can be managed. Business processing such as real-time diagnosis and CPLD upgrade can be performed on the single board without affecting the business of the whole machine system.

Support Ethernet OAM, providing a variety of device-level and network-level fault detection means.

A New Generation of Wired and Wireless Integration Scheme

S12500G-AF series switches support a new generation of wired and wireless integration solutions. The switch natively supports converged AC functions and can directly manage wireless AP. Compared with a single wireless AC card plug-in scheme, it has the advantage of more flexible and simple deployment, making the wired and wireless integration scheme more flexible and simple.

As a native feature of the switch, converged AC supports the combined use of virtualization technologies such as IRF2/IRF3.1 to realize the management of wired and wireless devices in the whole network by one device, greatly simplifying the complexity of network operation and maintenance.

green environmental protection design

S12500G-AF series switches can support the intelligent management function of power supply through the intelligent EMS engine system, can support the sequential power-on of single boards (reduce the power impact caused by the simultaneous power-on of single boards, improve the service life of equipment and reduce electromagnetic radiation), can control the power-off of single boards, isolate fault/idle single boards, and reduce system power consumption.

S12500G-AF series switches adopt high-efficiency PWM speed regulating fan and support stepless speed regulation. The system can automatically collect the single board temperature, calculate the fan speed control curve according to the actual situation of the equipment, and send the speed control command to the fan box. The system supports fan status monitoring (speed monitoring, fault alarm, etc.), which can automatically adjust the speed according to the ambient temperature and single board configuration, reduce equipment power consumption and operating noise, effectively reduce environmental noise and extend fan life.

S12500G-AF series switches support automatic detection of internal ports. When an interface board is not configured in a slot or a cable is not connected to the port, the system can automatically close the corresponding internal port, thus saving the power consumption of the whole machine.

Excellent manageability

S12500G-AF series switches support rich management interfaces, such as Console ports and out-of-band network ports, support iMC intelligent management center, support SNMPv1/v2c/v3(Simple Network Management Protocol) to collect equipment software and hardware information, CPU, memory, traffic CRC and other data, support CLI command line, Web network management, TELNET, make equipment management more convenient, and support SSH2.0 and other encryption methods, make management safer.