| [A] [B] [C] [D] [E] [F] [G] [H] [I] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] ODR (On Demand Routing) 2nd OL (Overload) bit OLE_LINK1 2nd 3rd OLE_LINK2 On Demand Routing (ODR) 2nd Open Shortest Path First [See OSPF] open standards operation EIGRP 2nd operations multiple area OSPF 2nd optimizing IP address space 2nd 3rd optional commands EIGRP options cost for configuring OSPF on internal routers 2nd 3rd 4th OSPF 2nd ordinary areas Originator-ID attribute OSPF checking configurations on a single router show ip ospf database show ip ospf interface 2nd show ip ospf neighbor 2nd show ip protocols 2nd show ip route commands for stub areas configuration commands for multiarea networks 2nd troubleshooting 2nd verifying 2nd configuring 2nd in NBMA mode 2nd verifying configuring default metric configuring in point-to-multipoint mode 2nd configuring on internal routers 2nd network command 2nd 3rd options for 2nd 3rd configuring virtual links convergence 2nd designating EIGRP deploying 2nd planning transitions verifying transitions hello protocol MBMA NBMA choosing topologies Cisco-specific Frame Relay topologies RFC-compliant subinterfaces neighbors adjacent neighbors designated routers 2nd finding with exchange process 2nd hello packets network topologies broadcast multiaccess NBMA point-to-multipoint point-to-point network topologoies virtual links 2nd routes discovering routing protocol enabling routing tables building 2nd building routing tables on new OSPF routers building SPF choosing SPF learning new routes 2nd maintaining topology databases updating topology tables show ip ospf border-routers show ip ospf virtual-links 2nd terminology topology databases maintaining totally stubby areas versus Integrated IS-IS 2nd 3rd 4th OSPF (Open Shortest Path First) configuring 2nd broadcast mode Frame Relay 2nd NBMA 2nd options 2nd point-to-multipoint mode 2nd single routers 2nd troubleshooting 2nd 3rd 4th convergence fundamentals of in single areas 2nd link-state routing protocols multiple area 2nd design 2nd operations 2nd topologies 2nd OSPF (Open Shrtest Path First) fundamentals of ospf auto-cost ospf neighbor command Outgoing Interface field |