1 在DR上的现象 拓扑图见 相册 ospf 邻居建.doc

1 在DR上的现象 拓扑图见 相册 ospf 邻居建 R4#sh ip ospf 1 Routing Processospf 1with ID 4.4.4.4 Start time：00：00：36.240,Time elapsed：00：33：56.436 Supports only single TOS(TOS0)routes Supports opaque LSA Supports Link-local Signaling(LLS) Supports area transit capability Router is not originating router-LSAs with maximum metric Initial SPF schedule delay 5000 msecs Minimum hold time between two consecutive SPFs 10000 msecs Maximum wait time between two consecutive SPFs 10000 msecs Incremental-SPF disabled Minimum LSA interval 5secs Minimum LSA arrival 1000 msecs LSA group pacing timer 240 secs Interface flood pacing timer 33 msecs Retransmission pacing timer 66 msecs Number of external LSA 0.Checksum Sum 0x 000000 Number of opaque AS LSA 0.Checksum Sum 0x 000000 Number of DCbitless external and opaque AS LSA 0 Number of DoNotAge external and opaque AS LSA 0 Number of areas in this router is 1.1 normal 0stub 0nssa Number of areas transit capable is 0 External flood list length 0 Area BACKBONE(0) Number of interfaces in this area is 1 Area has no authentication SPF algorithm last executed 00：05：47.700 ago SPF algorithm executed 19 times Area ranges are Number of LSA 5.Checksum Sum 0x02528C Number of opaque link LSA 0.Checksum Sum 0x 000000 Number of DCbitless LSA 0 Number of indication LSA 0 Number of DoNotAge LSA 0 Flood list length 0 * R4# R4#debug ip ospf adj OSPF adjacency events debugging is on R4#cle R4#clear ip ospf p R4#clear ip ospf process Reset ALL OSPF processes?[no]：y R4# *Mar 100：49：27.395：OSPF：Interface FastEthernet0/0 going Down *Mar 100：49：27.395：OSPF：4.4.4.4 address 192.168.1.4 on FastEthernet0/0 is dead,state DOWN *Mar 100：49：27.399：OSPF：Neighbor change Event on interface FastEthernet0/0 *Mar 100：49：27.403：OSPF：DR/BDR election on FastEthernet0/0 *Mar 100：49：27.403：OSPF：Elect BDR 3.3.3.3 *Mar 100：49：27.407：OSPF：Elect DR 3.3.3.3 *Mar 100：49：27.407：OSPF：Elect BDR 3.3.3.3 *Mar 100：49：27.407：OSPF：Elect DR 3.3.3.3 *Mar 100：49：27.411：DR：3.3.3.3(Id)BDR：3.3.3.3(Id) *Mar 100：