The Main Classification Of Routers

(1) Functionally, it can be divided into: backbone-level, enterprise-level and access-level routers. Backbone-level routers have a large and important data volume, which is the key to the interconnection of enterprise-level networks. Backbone routers require high speed and reliability. Networks typically employ technologies such as hot spare, dual power supplies, and dual data paths to ensure reliability. Enterprise-class router connectivity is simple for many end systems with low data traffic. [5]
(2) Structurally it can be divided into: modular and non-modular routers. Modular routers can realize flexible configuration of routers and adapt to the business needs of enterprises; Non-modular routers can only provide a fixed single port. Typically, high-end routers are modular and low-end routers are non-modular. [5]
(3) According to the network location, it is divided into "border router" and "intermediate node router". Routers within the WAN range can be divided into two types according to their performance in forwarding packets, namely border routers and intermediate node routers.