In this lab we’ll use the same topology as in the previous one, where we talked about how to configure OSPF on nonbroadcast network type. In Point to Multipoint OSPF behaves opposite to the Non Broadcast network type, namely here OSPF does not elect a DR/BDR but neighbor discovery proccess takes place. So, in this case we shouldn’t add neighbors manually.

In this article you we’ll examine how OSPF is behaving when using it over Frame Relay in a Nonbroadcast IP OSPF Network. Nonbroadcast network type is default on Cisco Routers so you don’t have to set it. Take note that in Nonbroadcast network type DR/BDR election process take place but Dynamic Neighbors Discovery don’t, so we need to add neighbors manually. In next picture you see the topology for this lab.

Hi there, In previous article (OSPF virtual links lab (Scenario 1)) we discussed about how to connect two parts of a broken Area 0 via virtual link. So, in this article we will discuss about how to connect via virtual link a remote Area (Area 2) to Area 0 which are separated by Area 1.

Hello everybody! There are times when you need in OSPF network to connect backbone area (Area 0) with a non backbone area, but there is no a direct connection between them. The other case is when you want to connect two parts of an Area (let’s say area 0), separated by some other area, we’ll discuss today about this case . To handle such situations you can use OSPF future called “Virtual Links”.

Hi all, In this article we will configure a Cisco Router to act as a Frame Relay Switch. We have used Cisco routers 3700 series in GNS3. To demonstrate comunication through Frame Relay Switch we connected to it two end devices (routers in our case),