Point-to-point networks (HDLC, PPP) Configuring the Network Type.Point-to-multipoint networks (ATM and Frame Relay).Nonbroadcast multiaccess networks (Switched Multimegabit Data Service, Frame Relay, X.25, ATM).Broadcast networks (Ethernet, Token Ring, FDDI).In this case, consider the following four network types: This section covers the methods and procedures needed to configure OSPF over different physical networks. Used in Ethernet and broadcast environments where the election of DR/BDR takes place Typically used for Frame Relay interfaces Table 5-5 OSPF over NBMA Using Cisco IOS Software Each network type has predefined n timers, such as Hello/dead. The following sections show you how to customize OSPF to your network's design.Ĭisco IOS Software allows five main network types to be configured, as displayed in Table 5-5. The strength of OSPF lies in its flexibility to meet certain network design requirements. Configuring your OSPF network type is one of the most prominent features of OSPF. Each of these network types requires a slightly different configuration to optimize the performance of OSPF. There are three distinct classifications of physical network media that OSPF can differentiate between.
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