picture of each floor
As the main venue for the school building, so the server on the office building. Constitutes a local area network with star schema, so easy to implement and expand the node, mobile convenience, easy maintenance. Between the office and classroom building outdoor use single-mode fiber optic cable (90m), office and dormitory building with multi-mode fiber optic cable to connect outdoor (800m), twisted-pair connections with the rest. Central office switches TP-link TL-SF1024V24 port VLAN switch, the teaching building and dormitory building information for each floor has 40 points, with two Catalyst 3500 24-port switches can meet the requirements.
Pig5.2 TP-link TL-SF1024V24 Catalyst 3500
Pig5.3Single-modeand Multi-mode fiber optic cable lines outside
Pig5.4 DCR-2500V Series Routers
5.2 VLAN set access permissions
Because there are a lot of teaching information office, inconvenience to be seen. Therefore, classified by VLAN technology to carry out the allocation of IP. Office can access teaching building and dormitory building, while the teaching building and dormitory building can not access the building. LAN technology for this division to solve problems. We will be unified after the interconnection of the network is divided into three virtual sub-networks, namely: building sub-networks, network teaching building, dormitory floor subnet.
building sub-networks:192.168.1.02~192.168.1.041 Gateway:192.168.1.1
network teaching building: 192.168.2.02~192.168.2.041Gateway:192.168.2.1
dormitory floor subnet: 192.168.3.02~192.168.3.041 Gateway:192.168.3.1
In the center switch TP-link TL-SF1024V24 set VLAN routing is as follows:
Office VLAN: 192.168.1.1/41
Teaching Building VLAN: 192.168.2.1/41
Dormitory VLAN: 192.168.3.1/41
In the center switch to set the routing protocols RIP or OSPF, and specify the network segment 192.168.0.0.
5.3 List of equipment and models
Equipment List: DCR-2500V Series Routers; TP-link TL-SF1024V24; Catalyst 3500; Single-mode fiber optic cable; Dual-mode fiber optic cable; CAT6 FTP CABLE UTP;
Equipments Model Amount
Switch TP-link TL-SF1024V24 Catalyst 3500 5
Router DCR-2500V 10Transmission Line Single-mode fiber optic cable; Dual-mode fiber optic cable;CAT6 FTP CABLE UTP 100m; 1000m
Cable Connectors UPC 4
5.4 Distance vector algorithms:
Main article: Distance-vector routing protocol[2]
Distance vector algorithms use the Bellman-Ford algorithm. This approach assigns a number, the cost, to each of the links between each node in the network. Nodes will send information from point A to point B via the path that results in the lowest total cost (i.e. the sum of the costs of the links between the nodes used).The algorithm operates in a very simple manner. When a node first starts, it only knows of its immediate neighbours, and the direct cost involved in reaching them. (This information, the list of destinations, the total cost to each, and the next hop to send data to get there, makes up the routing table, or distance table.) Each node, on a regular basis, sends to each neighbour its own current idea of the total cost to get to all the destinations it knows of. The neighbouring node(s) examine this information, and compare it to what they already 'know'; anything which represents an improvement on what the
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