How to upgrade your network to Gigabit

Gigabit Ethernet is a technology built on the basis of Ethernet standards. Gigabit Ethernet and heavily used Ethernet are fully compatible with Fast Ethernet and take advantage of all the technical specifications set out in the original Ethernet standard, including the CSMA/CD protocol, Ethernet frame, Full-duplex, flow control, and the management objects defined in the IEEE 802.3 standard. As an integral part of Ethernet, Gigabit Ethernet also supports traffic management technology, which guarantees quality of service on Ethernet, which includes IEEE 802.1P second tier priority, third tier priority QoS encoding bit, special service and Resource Reservation Protocol (RSVP).

Gigabit Ethernet also leverages IEEE 802.1QVLAN support, layer fourth filtering, and gigabit third-tier switching. Gigabit Ethernet was originally designed as a switching technology, using fiber as an uplink for connections between buildings. After that, in the server's connection and backbone network, Gigabit Ethernet has been widely used, due to the IEEE 802.3ab standard (using 5 and above unshielded twisted pair of Gigabit Ethernet standards), Gigabit Ethernet can be applied to any large and medium-sized enterprises.

Construction of Gigabit Ethernet

Gigabit Ethernet network is composed of gigabit switch, gigabit network card, integrated wiring system and so on. Gigabit switches constitute the backbone of the network, gigabit network card placement in the server, through the wiring system with the switch, Gigabit switch can also be connected to many hundred trillion switches, hundred gigabit Switch Connection workstation, this is called "hundred megabytes to the desktop." In some professional graphics production, video-on-demand applications, it may also be used to "gigabit to the desktop", and with gigabit switch to plug into a gigabit NIC workstation, to meet the special application of high bandwidth requirements.

In the construction of the network before, whether to use thousand trillion or hundred trillion, from the actual, from the application, consider the network should have what function. Different applications have different requirements, and there are few networks with a single business. However, in a variety of business, productive business is certainly the highest priority. If voice is transmitted over the network, then the voice business also needs to be prioritized. If there is a high demand for business priorities, the network must have QoS guarantees. Such a network must be intelligent, the switch port can identify what type of business through, and then the different business queues, for different services to allocate different bandwidth, so as to ensure the operation of the key business. The data business itself is intelligent, no matter how much bandwidth can be transmitted, but only the length of time, but the voice or video is not the same, if the bandwidth is small, immediately can not hear clearly, or image jitter, this is not allowed. So QoS is very important. For simple data networks, the need for QoS is low. When planning a network, you must first understand which features are required and which are not considered. For example, multicast is one of the most important performance, if you need to transfer the image in the network, and the network does not have the characteristics of multicast, then the network bandwidth waste will be very serious, or even impossible to achieve.

How to upgrade to Gigabit Ethernet

The 10M, 100M network upgrade to gigabit conditions are not many, the most important is the integrated wiring conditions. Gigabit Ethernet refers to the bandwidth of the backbone of the network, requiring the backbone cabling system to meet the requirements of Gigabit Ethernet. If the original network covers a distance of more than hundreds of meters to a few kilometers of buildings, the original trunk wiring is generally used multimode or single-mode fiber, to meet the requirements of the gigabit backbone, you can not have to lay down the fiber. In the case of the distance between the buildings less than 550 meters, the general laying of relatively low price multimode fiber can meet the needs of Gigabit Ethernet.

If the original network covers only one building, and the Farthest Network node and network Center distance of not more than 100 meters, you can use the original 5 or 5 types of wiring system. If the original wiring system is not up to 5 standards, or the use of the general line wiring system rather than star cabling system, you must be a new cloth 5 line.

Upgrade to Gigabit Ethernet, first of all, to upgrade the network backbone switch to gigabit, to improve the network backbone can withstand the data flow, so as to speed up the network speed. Prior to the hundred Gigabit switch as a branch switch, the previous hub can be used where the wiring point is insufficient. At present, Gigabit switch products are many, can be based on the network requirements and budget and other practical choices.

Servers on the network need to huff and puff a lot of data, if the network backbone upgrade to gigabit, but the server network card is still stuck in the level of hundreds of megabytes, the server network card will become the bottleneck of networks, you must use the Gigabit network card to eliminate this bottleneck, the solution is to add a gigabit NIC on the original server. Attention should be given priority to purchase 64-bit PCI Gigabit NIC, its performance is higher than ordinary PCI gigabit NIC. Gigabit NIC can be selected according to the requirements of the network and the actual situation of the budget.

The network backbone is upgraded and the branch of the network should be upgraded. If the original user computer has been installed 10m/100m Adaptive network card, you can not upgrade the network card, as long as the network card to the hundred-gigabit switch on it; if the original use of the 10MBPS network card, you need to replace the NIC to 10m/100m Adaptive network card, This will increase the speed at which the workstation accesses the server.