Root: WRM Database > Information Technology > Certifications > CCNA > Routing Protocols > Link-State > OSPF > No DR > Distributing Topology Information > When a Designated Router is not Required
Root: WRM Database > Information Technology > Certifications > CCNA > Routing Protocols > Link-State > OSPF > Neighbor States > "Full" (Fully Adjacent) > When a Designated Router is not Required



When a Designated Router is Not Required


When a Designated Router (DR) is not required, neighboring OSPF routers can go ahead and start the topology exchange process. They should continue working to exchange topology information and become fully adjacent.







References

Odom, Wendell (2008) CCNA ICND2 Official Exam Certification Guide, Second Edition. Indianapolis: Cisco Press.