E-lins industrial 4g router protocol with sim slot

Routing protocols mainly run on 4g routers. Routing protocols are used to determine the path to reach. It includes RIP, IGRP (Cisco Private Protocol), EIGRP (Cisco Private Protocol), OSPF, IS-IS, and BGP. Play a map navigation, responsible for finding the way. It works at the network layer.

The routing protocol is mainly a protocol that runs on the router and is mainly used for path selection.

The routing protocol is one of the important members of the TCP/IP protocol suite, and the implementation of its routing process will affect the efficiency of the entire Internet network. According to different application scopes, routing protocols can be divided into two categories: In an AS (Autonomous System, autonomous system, refers to an interconnected network, the entire Internet is divided into many smaller network units, these small networks have the right to autonomous The routing protocol that determines which routing protocol should be used in this system is called the interior gateway protocol, and the routing protocol between ASs is called the exterior gateway protocol. Here the gateway is the old name of the router. There are several types of interior gateway routing protocols in use: RIP-1, RIP-2, IGRP, EIGRP, IS-IS and OSPF. Among them, the first three routing protocols use distance vector algorithms, IS-IS and OSPF use link state algorithms, and EIGRP is a Cisco proprietary routing protocol that combines link state and distance vector routing protocols. For small networks, routing protocols based on distance vector algorithms are easy to configure and manage, and are widely used. However, when faced with large networks, not only the inherent loop problem becomes more difficult to solve, but the occupied bandwidth also increases rapidly. , So that the network can not afford. Therefore, for large-scale networks, IS-IS and OSPF using link state algorithms are more effective and have been widely used. IS-IS and OSPF are not much different in quality and performance, but OSPF is more suitable for IP and more dynamic than IS-IS. The IETF has always been committed to the improvement of OSPF, and its revision pace is much faster than IS-IS. This makes OSPF a widely used routing protocol. Regardless of the traditional router design, or the upcoming standard MPLS (Multi-Protocol Label Switching), OSPF is regarded as an indispensable routing protocol.