Connected: An Internet Encyclopedia
13.7. Receiving link state acknowledgments
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Connected: An Internet Encyclopedia
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Requests For Comments
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RFC 1583
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13. The Flooding Procedure
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13.7. Receiving link state acknowledgments
13.7. Receiving link state acknowledgments
Many consistency checks have been made on a received Link State
Acknowledgment packet before it is handed to the flooding
procedure. In particular, it has been associated with a
particular neighbor. If this neighbor is in a lesser state than
Exchange, the Link State Acknowledgment packet is discarded.
Otherwise, for each acknowledgment in the Link State
Acknowledgment packet, the following steps are performed:
- Does the advertisement acknowledged have an instance on the
Link state retransmission list for the neighbor? If not,
examine the next acknowledgment. Otherwise:
- If the acknowledgment is for the same instance that is
contained on the list, remove the item from the list and
examine the next acknowledgment. Otherwise:
- Log the questionable acknowledgment, and examine the next
one.
Next: 14. Aging The Link State Database
Connected: An Internet Encyclopedia
13.7. Receiving link state acknowledgments