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Sending Link State Acknowledgments All LSAcks sent multicast: LSAcks on MANET interfaces are sent to AllSPFRouters. LSA Acknowledgement rules: New LSA: Send a delayed ACK on each MANET interface, unless the LSA is flooded out the interface. Duplicate multicast LSA: do not send an LSAck. Duplicate unicast LSA: If the router is a (Backup) MDR, send an immediate ACK out the receiving interface. If the router is an MDR Other, send a delayed ACK out the receiving interface. Immediate LSAcks are sent in case (a) is to prevent other adjacent neighbors from retransmitting the LSA. |