![]() ![]() ![]() It is observed that although R1 and R2 establish an adjacency relationship, R1 and R3 cannot establish an adjacency relationship. In order to enable R3 to join the original OSPF network, another frame relay PVC can be established between R1 and R3, and its OSPF network type can be configured as point-to-point type.įr map ip 10.0.123.3 103 brįr map ip 10.0.123.3 103 broadcastįr map ip 10.0.123.1 301 broadcastĪfter configuration, view OSPF neighbor information on R1: Now, the company has a new branch, and the added router is R3. R1:Īfter configuration, view OSPF neighbor status and routing table on R1 Since the enterprise headquarters only needs to communicate with one branch at present, it is decided to change the network type of Serial 1/0/0 interface to point-to-point type in R1 and R2. The default Hello message interval is 30s, and the time of Dead Timer is 4 times that of Hello message interval. It can be seen that the default network type of frame relay interface in OSPF protocol is NBMA, and DR and BDR need to be selected. Network 10.0.2.2 0.0.0.0Īfter configuration, check the default network type of serial interface Serial4/0/0 of R1 in OSPF protocol Stay R1 and R2 Upper configuration OSPF agreement Master the configuration methods of different OSPF network typesĪfter the configuration is completed R1 And R2 Connectivity betweenĢ:to configure OSPF Point to point network type Understand the main differences between different OSPF network types ![]() This feature makes OSPF protocol more flexible and adaptable, and can meet various needs in complex networks. ![]() It should be emphasized that the network type of the interface can be manually modified according to needs. For serial interface, if the link layer encapsulation protocol is PPP protocol (Point-to-Point Protocol) or HDLC (high level data link control protocol), the default network type is point-to-point type, The default network type of ATM or frame relay interface is NBMA. The default network type of Ethernet interface is Broadcast. For example, BDR and DR networks do not exist, and the former two types of BDR and DR networks do not exist.īy default, OSPF protocol will automatically set the network type of the interface according to the link layer encapsulation protocol of the interface. There are some differences in the working mechanism of OSPF protocol on different types of networks. OSPF protocol defines four different network types, namely Broadcast Network (also known as broadcast network), nBMA (non broadcast multi access) network, Point-to-Point network (also known as Point-to-Point network, or P2P network) and Point-to-Multipoint network (also known as Point-to-Multipoint network, or P2MP network). ![]()
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