Shulou(Shulou.com)11/24 Report--

With the continuous promotion of educational information 2.0, in order to make "teaching more personalized, education more balanced, management more refined, and decision-making more scientific", advanced technology and applications are constantly introduced into the construction of intelligent campus. high-performance, easy operation and maintenance, good expansion of the campus network has become an indispensable part of the construction of intelligent campus.

Xixian New area Tieyi Middle School Jinwan Middle School, founded by Xixian New area in cooperation with Xi'an Tieyi Middle School, one of the five famous schools in Shaanxi Province, is a new type of modern public school under its jurisdiction for high-quality educational resources. it officially recruited students in September this year. Tieyi Middle School Jinwan Middle School chose Ruijie minimalist Ethernet all-optical solution in the process of school-wide network construction this year. It has created a high-quality campus all-optical network that supports intelligent campus construction, faces future technological development, and deeply integrates information technology and education and teaching.

Aerial view of the school

The choice of all-optical network: based on the present and facing the future

Lieutenant Colonel Tieyi has begun to explore a variety of intelligent teaching services since 2010, completed the upgrade of the campus gigabit network in 2013, and reached eight information points in the classroom in 2019. More new services such as 5G and the Internet of things will be integrated into the intelligent campus. Therefore, in the process of planning and construction of Tieyi Middle School Jinwan Middle School, the school specially carried out "lessons learned" to understand the problems that need to be avoided in the existing network, as well as the information construction experience that needs to be continued.

The problems of the campus network using the traditional Ethernet network are mainly reflected in: due to the early construction time, the existing network performance can not meet the growing network demand; due to the time requirements of the school teaching business, the business transformation investment is large and time is tight; due to the continuous new business, the number of equipment and cables in the weak power room is also increasing, and the maintenance difficulty and workload are increasing. At the same time, the management of multiple sets of networks is complex, and primary and secondary schools are lack of specialized network operation and maintenance personnel, once there are serious problems in network equipment, we need to seek technical personnel from service providers to solve, network maintenance is troublesome and inefficient.

Major measures such as "China Education Modernization 2035" and "Education Informatization 2.0 Action Plan" have been issued one after another. it is pointed out that all-optical network has become the core development direction of intelligent campus network base because of its advantages of high performance, comprehensive coverage, flexible expansion and simplified operation and maintenance. The school also examined a variety of route schemes on the market, and finally chose the all-optical network as the breakthrough direction.

Ethernet all-Optical Network to meet the New Challenge of Campus Network

Based on the network experience of the school headquarters, but also focusing on the needs of the new campus network, the school information center further sorted out the specific campus network construction objectives:

1. Convenient network expansion: with the deepening of the construction of the intelligent campus, the number of network devices deployed in the classroom is also increasing. At present, there are more than 6 information points in the classroom, and will continue to increase, which needs higher bandwidth and flexible expansion of the network to support.

two。 High bandwidth of the network: avoid the need for high-bandwidth, low-latency applications such as normal recording and live broadcast, as well as high concurrency of devices such as smart blackboards and cloud desktops.

3. Simplify the deployment of operation and maintenance: reduce the difficult pain points in network operation and maintenance, reduce the workload of operation and maintenance, and improve the efficiency of operation and maintenance.

According to the network demand of the school, the information center decided to use the Ruijie minimalist Ethernet all-optical scheme and the passive Ethernet all-optical network to build the intelligent campus network base of the new campus.

Network architecture diagram

Ethernet all-Optical Network Base for the Construction of Intelligent Campus Network

"the Ethernet network is mature, and all the schools in our circle recognize and use passive Ethernet all-optical networks. in the process of gradual construction and use, we also really realize the strong supporting role of Ethernet all-optical network to the construction of digital campus. we believe that passive Ethernet all-optical network is the mainstream scheme of the next generation intelligent campus." -- Director Liu of the Information Center of Tieyi Middle School Jinwan Middle School

1. Optical fiber enters the room to solve the problem of network expansion: the minimalist Ethernet all-optical solution adopts the architecture of 1:1 optical fiber into the room, and the indoor network expansion only needs to be drawn from the information point to the incoming switch, and there is no need to pull the cable from the weak electricity room like the traditional network. the number of cables in the bridge is greatly reduced.

Compared with the traditional Ethernet, the wiring space of the new bridge tray of the school is only 1x3, and the overall wiring cost is also reduced by 90%. At the same time, the scene of complicated equipment and messy cables in the weak power room is no longer seen, and the core side super-polymerized color light module and the passive and transparent convergence of the building side achieve the passive power in the weak power room, which avoids the problem of power consumption and safety, and avoids the operation and maintenance to reduce the overall operation and maintenance cost.

Comparison before and after the bridge frame

2. High network performance, high bandwidth and high concurrency at 1:1: the ultra simple light adopted by the school this time uses Ethernet color light technology. Compared with the traditional all-optical PON network, it can enjoy gigabit / 10 gigabit bandwidth at 1:1, and solves the performance problems of high bandwidth, low delay and high concurrency after the deployment of a variety of smart campus services:

For classroom scenes, including monitoring & normal recording and broadcasting, digital broadcasting, smart screen, computers and other classroom gradually increasing intelligent campus terminals, indoor more than 6 information points equipment high concurrency network, to meet the normal recording and broadcasting (6-10m), the Education Commission classroom live broadcast (one-way 2-4m), cloud terminal (10-20m) and other high-use network equipment operation

The new classroom of Jinwan Middle School

For office scenarios, the entry of the extremely simple optical access switch brings a gigabit network to the desktop, whether it is daily office or video conference, or access to wireless download files will not produce stutter, and the download speed can reach 50m / s.

3. A two-pronged approach to improve the efficiency of operation and maintenance management:

"for primary and secondary school information departments that lack operation and maintenance resources, once there are network problems that cannot be dealt with, they need to contact service providers to provide technical support, unable to quickly restore the network, and it is easy to delay the progress of teaching."

In order to thoroughly solve the "stubborn problem" of operation and maintenance management, the school has made special considerations from the early deployment configuration to the later operation and maintenance management, so as to reduce the workload of the school information department: the incoming switch supports "0" configuration online, and the configuration can be sent out quickly through the INC platform, and the automatic configuration of the equipment can be completed in 3-5 minutes, avoiding the time and effort of manual debugging one by one, and shortening the equipment online cycle. At the same time, the extremely simple optical scheme supports the intelligent operation and maintenance of the network, the daily status is displayed in real time, and the current situation of the whole network is displayed at a glance. Once there is a problem, the software can quickly self-check and visualize the optical link. If you need to replace the equipment, you do not need to mark the correspondence between the port and the network cable before, you can carry out blind plug and replace, quickly restore the normal state of the network, and let the teaching business run normally.

"overall awareness to make plans, development vision to select technology"

In the face of the problems encountered in the traditional campus network and the needs of the next generation of digital campus construction, how to create a new basic network with high performance, easy operation and maintenance and good expansion for the future digital campus? Starting from the actual needs of the school, Tieyi Middle School Jinwan Middle School looks at the current problems from the perspective of development, and chooses the minimalist Ethernet all-Optical Network, which accords with the development trend of all-optical network, to build a campus network and help the school build a network "highway". In the future, we can better support and accommodate the development of more intelligent campus business.

As a manufacturer, Ruijie Network will continue to refresh and upgrade minimalist Ethernet all-optical solutions, and launch more problem-solving products, more advanced and more overall development-conscious solutions, to better match the changing needs brought about by the continuous development of the intelligent campus, help the intelligent campus to build a stronger network foundation, and release more technology to promote the continuous development of education and teaching towards high quality and intelligence.

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