What is a TOR switch in some large computer rooms? What is a node?

TOR switch is a wiring mode of data center switch. A node is a connection point that represents a redistribution point or a communication endpoint (some terminal devices). The definition of a node depends on the mentioned network and protocol layer. In data communication, physical network nodes can be data circuit terminal devices, such as modems, hubs, bridges or switches. Therefore, data terminal devices, such as digital mobile phones, printers or hosts, can also be regarded as nodes.

TOR access mode is to install an access switch at the top of the standard 42U server cabinet. The network ports of the server are all connected to the switch at the upper part of the cabinet. Then, the access switch is connected to the convergence or core switch of the network cabinet through copper cable or optical fiber. The advantage of this networking is to simplify wiring, and there are only a few cables from the server cabinet to the column head cabinet.

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TOR switch can provide higher speed and faster broadband processing capacity, which fully meets the demand of fast data transmission in network computer room. TOR switch adopts high integrated circuit design, which has excellent safety performance and can effectively reduce signal crosstalk. TOR switching power supply module supports hot plug and high energy efficiency ratio, which can realize lower total cost of ownership redundancy and airflow selection of cooling and hot and cold channels.

TOR switch can provide advanced L2/L3/MPLS, support diversified management interfaces, and provide rapid service deployment and management for traditional L2/L3 networks. Or switch has 802. 1X, MAC and network severity mode, which can provide high-quality security risk management for enterprises.

Baidu encyclopedia -TOR access mode

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