1) Choose credible technical indicators, switching speed, switching capacity (Gbps), backplane bandwidth (Gbps), processing capability (Mpps), and throughput (Mpps).
2) Design a correct test plan and prepare enough test ports to accurately evaluate the real performance of the switch.
3) Select the correct product module configuration, adopt a distributed switching processing structure, and all interface modules have the ability of local autonomous switching, thus avoiding the central switching bottleneck problem existing in the centralized switching structure.
4) For delay and delay jitter, select industry-leading switches whose delay is less than 10 microseconds.
5) Support for multicast, commonly used multicast protocols include PIM and DVMRP. The product should support these two multicast protocols at the same time.
6) Rich interface types, choose the backbone switch that supports Gigabit Ethernet, POS and ATM broadband interfaces at the same time.
7) Stable routing protocol software implementation, routing protocol (such as BGP, OSPF) that can be implemented on the switch needs.
8) MPLS is supported, and the backbone network that can be constructed using MPLS can support various applications such as traffic engineering and VPN.
9) The main technical conditions for ordering switches are to choose a network with a large amount of data transmission, strong data exchange capabilities, stable and reliable, and uninterrupted operation. Products should be selected on the basis of high performance, manageability, high reliability, applicability and cost performance.
10) The specifications and sizes of switches in the main computer room must be able to be installed in the main cabinet.
The main specifications and parameters of the switch are 8, 16, 24 RJ45 ports, rack-type 19-inch adaptive Ethernet switch, support network standards 802.3 10BaseT, 802.3u100BaseTX, backplane bandwidth: 4.8G packet forwarding rate 10M: 14,880pps; 100M :148,800pps 10M/100Mbps MAC address table 4K. In addition, there are intelligent and optical switches, which can be selected according to the network conditions.
11) Four ports are generally enough for families, and multi-ports are mostly used for enterprises
12) At present, there are many models and functions, and the grades are also different! Commonly used general electronic market can be purchased!
13) The switch cannot be used for adsl dialing, the switch cannot be used for telephone lines, the switch does not have the function of assigning ip addresses, and the router can automatically assign ip.
