Traditionally, Ethernet has dominated data centers and enterprise LANs. However, due to the cost advantages, simplicity and flexibility of Ethernet, users are offered attractive price options. Over the past few years, Ethernet has gradually penetrated into other parts of the entire network. Today, broadband access networks and metropolitan area networks use Ethernet technology. The development of these markets has led to the rapid development of the Ethernet market and the development of Ethernet technology.
100G Ethernet demand highlightsWith the rapid spread of Ethernet technology in network construction, the Ethernet platform has become the mainstream technology platform in network formation. Ethernet switch products have become the main network equipment of LAN, campus network and metropolitan area network.
Bandwidth pressure is one of the core issues of the network. With the rapid increase in the number of network users, the scale of the network is also rapidly expanding. There are also data center, multimedia, Internet, and the proliferation of wired and wireless broadband services such as WiFi, 3G, LTE, etc., the business is becoming more complex, and the amount of data is increasing. , requires massive storage and fast data exchange. Multimedia services such as video, cloud computing, Internet search, wireless broadband, etc., especially P2P, video content, and high-throughput data have become the mainstays, all of which place demands on the high bandwidth of the network. Whether it is the internal bandwidth demand of the local area network, the campus network, the metropolitan area network, or the export bandwidth demand, it is a geometric number growth.
In the metropolitan area network broadband access, the bandwidth of 20Mbps, 50Mbps, or even 100Mbps per user has become the network development goal of many countries in the next few years. The increase of access layer bandwidth will inevitably lead to the bandwidth requirement of the metropolitan area network convergence layer and the core layer. Increasingly, the convergence layer will be dominated by 10GE, and the need to upgrade the backbone layer to 100G will be highlighted.
In data centers, high-bandwidth applications such as video on demand, 10G FCoE, and high-performance computing require a 10 Gigabit Ethernet interface. At present, 10 Gigabit has just taken off at the access layer of a large network. Once extended to the client device, it will inevitably trigger the need for 40G/100G Ethernet at the aggregation layer and the network core layer. In the last two years, the period of rapid growth of data centers, coupled with the decline in the price of 10G network cards and Ethernet devices, more and more users are willing to adopt 10 Gigabit Ethernet access technology. With the popularity of 10 Gigabit Ethernet on servers and access devices, the demand for 100G Ethernet will become stronger and stronger at the network aggregation layer and core layer devices.
In any case, network traffic continues to grow. Both enterprises and operators must expand their networks to cope with traffic growth to avoid traffic congestion. The bandwidth upgrade and expansion of the network is imperative. For high-bandwidth switches. Demand is also growing, and 100G Ethernet is imperative.
100G Ethernet standard IEEE 802.3ba officially approvedAs early as 2006, HSSG (Higher Speed ​​Study Group) was established for the above-mentioned high-bandwidth requirements. This is a group established by IEEE to research and develop 100G Ethernet standards. In December 2007, HSSG officially changed to the IEEE 802.3ba working group, whose task was to develop standards for 40Gbps and 100Gbps data rates on fiber and copper. Now, the IEEE 802.3ba standard, the 40G/100G Ethernet standard, was officially approved on June 17, 2010. The first specification will use two new Ethernet rates simultaneously.
The IEEE 802.3ba standard addresses the broadband needs of an increasing number of applications in data centers, carrier networks, and other traffic-intensive high-performance computing environments. The 802.3ba standard is still compatible with the existing IEEE 802.3 standard. The new standard Ethernet frame format is the same as the IEEE 802.3 format, mainly to protect existing Ethernet investments. The IEEE collaborated with the ITU ITU-T Study Group 15 to ensure that new Ethernet rates can be implemented on fiber-optic transmission networks, laying the foundation for the promotion of 100G.
The official approval of this standard paves the way for a new wave of higher-speed Ethernet applications.
8900E series core switches enable network super high speed engine 100G not only represents the rate, not only 10 times faster than 10G in data transmission rate, but more importantly, the function is greatly enhanced and enriched, and it also puts higher requirements on 100G equipment.
ZTE follows the international standards and introduces a new generation of ZXR10 8900E series core switches, which can provide online deployment of 40G Ethernet ports and support smooth upgrade of 100G Ethernet.
The hardware architecture of the ZXR10 8900E series core switch is based on the 400G platform design. It uses a high-speed SerDes backplane signal technology up to 12.5G. The single chassis provides a maximum backplane bandwidth of 19.2 Tbps. The fourth-generation CLOS switching matrix technology provides a maximum of 7.68 for a single chassis. Tbps switching capacity; 320Gbps bandwidth per slot, support for 8 40GE, 3 100GE port line rate capabilities, and support for subsequent seamless smooth upgrade. On the hardware architecture of the device, it meets the requirements of 100G Ethernet non-blocking switching bandwidth and packet forwarding capability, and realizes the promise of 100G cross-board forwarding without packet loss.
As a 100G platform switch, ZXR10 8900E adopts more advanced semiconductor technology in all key parts. The core chip is manufactured with high integration and 40nm low-power CMOS technology to ensure the processing speed while maintaining the low power consumption of the chip. The single chip has a switching performance of up to 640Gbps and a packet processing performance of 960Mpps, meeting the needs of the 100G interface for packet processing. High-speed Interlaken interface between chips ensures higher transfer rate and access bandwidth between chips, ensuring low latency for service processing and meeting line rate processing for 100G data streams.
The new generation of ZXR10 8900E series core switches support refined QoS control and scheduling, and 200ms of data caching capability. While ensuring 100G line rate processing capability, the port bandwidth is maximized and network efficiency is improved.
Most of the 100G platforms are deployed at the core of the network. Software features such as MPLS, IPv6, and high reliability are also very important. The ZXR10 8900E series core switches support MPLS VPN, VPLS, VPWS, IPv6, SynE, 1588V2, etc. Multi-service bearer requirements, support virtual switch cluster system, support multiple devices virtual as a logical device, dynamically expand capacity, improve cluster system capacity and port density, simplify topology, and manage easily. The 8900E supports data center technologies such as FCoE, Multilink Transparent Interconnect (TRILL), and Data Center Bridging (DCB). In terms of reliability design, the 8900E supports online software upgrade capability (ISSU) and non-disruptive routing capability (NSR) to ensure device and network reliability. The above leading technology enables the ZXR10 8900E to sit firmly at the core of 100G Ethernet switching.
In the foreseeable future, with the improvement of technology, the market will begin to mature, and with the further development of supporting technologies such as network cards, high-end servers, core switches, and core routers, the world's most advanced users will begin to use 100G products and a large number of data centers. Users start to use the 100G master node connection, the operator's network begins to use 100G connection, 100G will open up a new era of network communication "wide", and will continue to surprise us in the next few years.
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