• OSPF virtual connection of HCNP Routing & Switching


    Previously, we learned about ospf network types, frame relay switch mapping and router frame relay mapping. For review, please refer tohttps://www.cnblogs.com/qiuhom-1874/p/15195762.html; Today, let’s talk about virtual connection in OSPF; In OSPF, in order to avoid the loop between regions, OSPF stipulates that it is not allowed to publish routing information directly between two non backbone […]