Project needs analysis and objectives
The campus network constructed by this project is a data exchange network based on IP technology. The overall goal of the network construction is: an information-based basic platform suitable for digital campuses in the new century. A high-performance campus network with non-blocking, Gigabit / Gigabit backbone, and 100M switching to the desktop.
The overall design of the network: to meet the needs of 2300 acres of campus, to meet the needs of 25,000-30000 student scale, strictly in accordance with the design specifications of large-scale campus network layered. That is to say, the campus network is logically divided into three layers: core layer, convergence layer, and access layer. In order to improve reliability, a distributed redundant multi-core structure is adopted. In the planning, each convergence point is connected to at least two core switches. When one core switch in the system fails, the other core switch connected to it will take over its switching tasks and make structural redundancy.
Specific implementation of core equipment solutions
The core switching equipment is composed of an Annet core switch SwitchBlade4008 carrier-class multi-layer backbone switch and three aggregation switches SwtichBlade4004, Claymore9812T, RapierG6. Multiple Gigabit port aggregation links are used between the core switch and the aggregation switch. SwitchBlade 4008 uses Annet's core switch SwitchBlade4008, a 10-slot chassis, a non-blocking switching structure, a backplane of 128Gbps, and L2 / L3 throughput of 96Mpps. Annet's core switches are distributed routing and switching organizations. Anet's core switch SwitchBlade4008 has a higher port density. In the case of online speed without blocking, it supports up to 64 Gigabit ports and 384 10 / 100M ports. SwitchBlade4008 is equipped with a firewall function based on status monitoring. The implemented dynamic packet filtering function can be used to check each new incoming data stream that meets the access rules, making SwitchBlade4000 series switches have higher security than ordinary switches. witchBlade4000 has excellent QOS support, with 8 hardware priority queues per port. Support 232K routing table items, more than most similar products, carrier-class reliability, MTBF time is 300,000 hours. The aggregation switch supports all ports L2 / L3 full line speed switching, and supports 802.1ad port aggregation. And can support at least 8 Gigabit port aggregation; and one of Claymore9812T can support 16 Gigabit port aggregation. IEEE802.1Q VLAN support, and the number of supports is not less than 64. Annet switches Switchblade4004 and Claymore9812T support 4096 Vlans, and RapierG switches support 64 Vlans.
Access solution
The configuration of the access node can select the AT-8700 series switches of Annet according to the business requirements. The device supports comprehensive integration of multiple services and can provide corresponding QoS for different services.
Therefore, we have adopted different switch solutions for different places:
The network center of the experiment building and the university student activity center adopt the switch scheme mainly based on AT-SB4008R, supplemented by AT-SB44xx series, AT-G8LX10 and AT-G8SX. The library and computing center and the computer department building 1 # laboratory building, 3 # family building, etc. adopt the switch scheme based on AT-SB4004, AT-9812T-40, AT-G8LX10, AT-RPG6 and other aggregation switches. The access switch of the family hospital adopts the aggregation switch solution of AT-8724XL, AT-A39 / T and AT-A35SX / SC. As for the access switch in the test building, office building and student dormitory, the access solutions of AT-8724XL, AT-8748XL, AT-A39 / T and AT-A35SX / SC are adopted respectively.
Network management system solution
A network management workstation is set in the network center to realize the network management function of the core nodes, aggregation nodes and access nodes. Anet independently owns the Chinese and English version of the network management software AT-View Plus for all Anet's network management devices and the network management system platform SNMPc. AT-View Plus includes
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