TIPC name table updates are distributed asynchronously in a cluster, without any form of transaction handling. This means that different race scenarios are possible. One such is that a name withdrawal sent out by one node and received by another node may arrive after a second, overlapping name publication already has been accepted from a third node, although the conflicting updates originally may have been issued in the correct sequential order. If named_timeout is nonzero, failed topology updates will be placed on a defer queue until another event arrives that clears the error, or until the timeout expires. Value is in milliseconds.