Based on the DR AND BDR discussion i want to put one question
the question is
what is the name of protocol which is responsible;e for DR
and BDR selection

Answer Posted / gtech

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 segment will become the DR for that segment. The same
process is repeated for the BDR. In case of a tie, the
router with the highest RID will win. The default for the
interface OSPF priority is one. Remember that the DR and BDR
concepts are per multiaccess segment. Setting the ospf
priority on an interface is done using the ip ospf priority
<value> interface command.

A priority value of zero indicates an interface which is not
to be elected as DR or BDR. The state of the interface with
priority zero will be DROTHER.
Src : Cisco

Note: OSPF is routing protocol not a DR Or BDR selection
protocol...This is mine concern..nw waiting for the any
other concept if it is there..Gtech

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