OSPF DR election and waiting state (waiting timer or delay)
2017年8月12日 · We noticed that when there is already a DR in the segment, there will be no election(current DR remains) but what if there are two DRs in the segment. In some cases it …
Understand OSPF Neighbor States - Cisco
2024年2月29日 · When OSPF adjacency is formed, a router goes through several state changes before it becomes fully adjacent with its neighbor. Those states are defined in the OSPF RFC …
Solved: Can you force an ospf Dr election - Cisco Community
2022年5月12日 · You can influence the DR and BDR election process by manually configuring the OSPF priority. This is done by using the ip ospf priority VALUE command interface command. BB
Solved: OSPF - Master/Slave - DR/BDR Election - Cisco Community
2014年8月28日 · If you add a new router in a multiaccess network where DR/BDR already elected, in 2 way state new router will come to know about DR/BDR and will go for …
OSPF DR/BDR election confusion - Cisco Learning Network
DR and BDR election is done via the Hello protocol. Hello packets are exchanged via IP multicast packets (Appendix B) on each segment. The router with the highest OSPF priority on a …
OSPF DR - What does it do? - Cisco Learning Network
DR and BDR listen for updates coming from DRothers (LSUs) via multicast address for all DRouters (224.0.0.6) and then reflood them to the multicast address for all SPF routers …
Solved: DR/BDR OSPF - Cisco Community
2012年7月23日 · the 224.0.0.5 is ALL OSPF Router multicast address, OSPF routers use this address to send OSPF Hello packets to eachother in the network, but when it comes to …
Segment Routing Configuration Guide for Cisco ASR 9000 Series …
2025年1月30日 · Router#show ospf neighbor 192.168.199.130 Mon Nov 6 19:13:08.861 IST * Indicates MADJ interface # Indicates Neighbor awaiting BFD session up Neighbors for OSPF …
Solved: Reselection of DR (OSPF) - Cisco Community
2023年3月29日 · OSPF DR/BDR Election process is different and depends on whether DR currently exists or not. For brand new routers OSPF election process starts looking at Router's …
Solved: OSPF DR/BDR election with VLANs - Cisco Community
2023年8月31日 · In addition, DR/BDR elections in OSPF are non-preemptive (and hence not fully deterministic - they depend on timing). Once a DR is chosen on a segment, another router …