Showing posts with label election in ospf. Show all posts
Showing posts with label election in ospf. Show all posts

Saturday, July 9, 2016

DR and BDR Concepts in OSPF


For previous post about Neighbourship formation....Click here neighbour-formation-stages-in-ospf


àIn a network all the router will sends route updates to all other routers, so that the burden is very high on the network due to the routing updates traffic. 

      To solve this DR and BDR is introduced. So that all the routers will send route updates to these DR and BDR only
Ø  To reduce the FULL Neighbourships.
Ø  To reduce the CPU burden on devices.
Ø  To reduce the Bandwidth utilization.

So that all routers will make FULL Neighbourship with DR, while the other router will make up to 2-Way state neghbourship only.