386 CHAPTER 15: OPEN SHORTEST PATH F IRST (OSPF)ip ospf neighborsLayer 2SwitchingModules3 MultilayerSwitchingModulesdisplayDisplays information about currently defined neighbors in an OSPF area.Valid Minimum Abbreviationip o n dFields in the IP OSPF Neighbors DisplayField DescriptionFlags Neighbor identification flags:n D — Dynamic neighborn S — Static neighborn BDR — Backup designated routern DR — Designated routerExample: [S, BDR] + [D, DR] is a static neighboring backupdesignated router and a dynamic neighboring designated routerIndx Interface index that corresponds to the interface to which aneighbor belongsNeighbor Addr Interface address of neighborPri Neighbor’s OSPF router priorityReqQ Number of LSAs being requested from neighborRouter ID Neighbor’s OSPF router IDRxQ Number of LSAs in local retransmit queue to the neighborState Neighbor’s adjacency:n Down — No recent data received from neighbor, connectionis down.n Attempt — Only used on nonbroadcast networks. No recentdata received from neighbor (will attempt to contact).n Init — Have recently seen Hello packet from neighbor;however, two-way communication has not been established.n Two-way — Bidirectional communication has beenestablished.n ExStart — Taking initial step to create adjacency betweenneighboring routers.n Exchange — Database descriptions are being exchanged.n Loading — LSA databases are being exchanged.n Full — Neighboring routers are fully adjacent.SumQ Number of LSAs in LSA summary queue for the neighbor
