Five kinds of main technical data center switches

1 high capacity equipment  Huawei Switch

The characteristics of network traffic data center has a high density application scheduling, surging burst buffer, while the ordinary switch to meet the interconnection as the main purpose, unable to realize the accurateidentification and control of the business, to achieve fast response and zeropacket loss can not be in the business situation, business continuity can not guarantee the reliability, the reliability of the system mainly depends on theequipment. So the common switch can not meet the needs of the data center,data center switches must have high capacity transfer characteristics.

Data center switches must support the high-density Gigabit card, namely 48port Gigabit card, in order to make the 48 port Gigabit card can full wire-speedforwarding, data center switches can only be used CLOS distributedarchitecture. In addition, along with the 40G and the popularity of 100G,support the 8 port 40G card and 100G card port 4 also gradually commercial,data center switches 40G, 100G card has already appeared to enter the market, so as to meet the requirements of application of high density data center requirements.

2 cache technology

Data center switches changed the traditional port buffer exchange system, the distributed cache architecture, cache than ordinary switches also big many,more cache capacity can reach 1G, and the general switch can only reach 2~4M.

The sudden flow cache capacity to 200 milliseconds per port in 10g line speedconditions. Thus in the case of bursty traffic, a large cache can still guarantee the network forwarding zero packet loss, is adapted to the data center servercapacity, characteristics of sudden large flow.

3 virtualization technology

Characteristics of data center network equipment requires executives reason and high safety reliability, so the data center switches also need to supportvirtualization, virtualization is the physical resources into logic can be managedresources, to break the barriers between the physical structure.

Virtual network device includes multiple virtual a, a deficiency, deficiency etc..Through virtualization technology, network equipment for unified management of multiple, can be completely isolated on an equipment business, so the data center management costs decreased 40%, the IT to improve the utilization rate of about 25%.

4.FCOE Technology

The traditional data center often has a data network and a storage networkand data center network, a new generation of fusion trend is more and more obvious, the emergence of FCOE technology makes the network integration possible, FCOE is the data frame encapsulation storage network forwardingtechnology in the Ethernet frame. To achieve this fusion technology must be in the data center switches, ordinary switches are generally does not support FCOE function.

5.TRILL Technology

Data center in the construction of two layer network, the original standard STP protocol, but its so some defects such as: STP is to work through the portblocked, all redundant link not to transfer data, resulting in a waste of bandwidth resources;

STP has a spanning tree, the data message has to go through the root bridgeconnecting to arrive, affect the efficiency of the whole network forwarding. So STP will no longer suitable for expansion of large data center, TRILL is due tobe the STP of these defects, is for the data center application and generationtechnology.

The TRILL protocol to the two layer configuration and flexibility and three level fusion and scale efficiency together, the big two layer does not need to configure the circumstances, can realize the whole net loop-free forwarding.TRILL technology is a data center switch layer two basic characteristics, which is not possessed by common switch.

Several kinds of network technology is more than ordinary switches do not have, is the main technical data center switches, is a new generation of data center, data center and cloud service network technology. With these newnetwork technology, Huawei distributor makes the rapid development of data center.

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