ICEFLOW distance education networking solution

Status and needs

For the education sector, the traditional education model can no longer meet the needs of the development of modernization construction, especially since China issued the "Fifteen Development Outline of Educational Informatization" in 2001 and the full implementation of the "School-School Link" project A wave of magnificent waves of educational informatization construction has made substantial progress in various aspects such as funding, construction scale, software and hardware platforms, and application promotion. A large number of inspiring educational informatization application models have emerged, indicating The future development trend of education informatization. Although distance education has been around for half a century, the rapid development of contemporary information and communication technologies has made distance education a new form of education that has received unprecedented attention from governments around the world.

Modern distance education is a distance education carried out under the communication network environment such as satellite TV network, telecommunication network and computer network. It has significant technical and teaching characteristics such as digitization, multimedia and interactive. The most obvious feature of distance education in teaching is: from the traditional focus on teachers and classrooms, to the focus on autonomous learning between students and students, teachers and students are in a quasi-permanent separation. Therefore, to enable students to learn the knowledge and skills they need under autonomous conditions and complete their studies, they must create a thoughtful and meticulous online teaching environment for students. The construction of the online teaching environment, the primary task of which is to build modern distance education teaching information transmission and feedback networks and other infrastructure and teaching places, but while building the network, line costs are a problem that cannot be ignored.

For example, the distance education college of a university now has 5 teaching points locally and 10 teaching points in the field. In the past, some teaching points used point-to-point DDN, and some teaching points were connected to the headquarters of the university through satellite lines, real-time teaching image transmission, line cost Always high. How to connect more than a dozen teaching points, exchange information with the school headquarters at any time, and the line cost is not high?

Program overview

ICEFLOW recommends that the distance education system install an ICEFLOW product at the teaching headquarters and sub-teaching points, respectively, to establish its own virtual private network. The ICEFLOW VPN solution can effectively meet the requirements of the broadband network construction of the distance education system. Through such a private network of the education system, the existing distance education needs can be met. To achieve advanced education features of distance education.

Network Architecture

â—‡ Classroom in the headquarters: install a high-performance ICEFLOW R5000H router in the headquarters as a gateway node of the VPN network to access the multicast server. Using VCON's NetMeeting distance education system, the real-time images acquired by the camera from the classroom are multicast to the entire VPN network. The students at the following teaching points directly receive the multicast images through the machines in the LAN

â—‡ Branch teaching points: Establish a VPN channel between the headquarters and branch teaching points, install ICEFLOW such as 5000L or 1700H routers on the gateway computers of each branch teaching point LAN, access the school headquarters, and receive the school headquarters multicast image topology Structure diagram