Answer Posted / sonu singh
if any link fail in ospf network , it send link state
advertisement (LSA) packets with a sequence number to there
neighbor ,The neighbor check the failed link sequence
number with the sequence number of his link database, if
the advertised sequence number is high then the neighbor
sequence number , the neighbor update his database,,if low
it send his link related information to advertiser,,if
equal it simply discard the packet.......Through this way
convergence happen in ospf.....
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