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changes.mady.by.user Sadat Tafader

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changes.mady.by.user Unknown User (aagoro)

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Comment: Published by Scroll Versions from this space and version 1.5.58

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  • On starting the subscription, the local book is regarded as empty. For the the first update the client receives, all MDEntries will specify NoMDEntries[*].MDUpdateAction = New, so the value of MDFlags.IsSnapshot is immaterial in this case and Whisperer may will mark the first update as a snapshot, or not, depending on the venue.
  • Snapshots may be delivered at any time in the life of the subscription. This is particularly important for connections to UDP multicast feeds where dropped packets must trigger book/session recovery.

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