What is the real meaning of the missing changes in the OUD replication state?

Hi

In a multi-master replication topology with two dedicated OUD replication servers, one shows an increasing number of missing changes, such as the one shown in the table, result of the dsreplication status command

Server	Entries	MC [1]	AOMC [2]	Port [3]	Status [4]	Conflicts [5]
1.replication.directory:4444	-- [7]	0	N/A	8989	Up	–
2.replication.directory:4444	-- [7]	125966006	N/A	8989	Up	–
1.data.directory:4444	913462	0	N/A	-- [8]	Normal	0
2.data.directory:4444	913462	0	N/A	-- [8]	Normal	0
3.data.directory:4444	913462	0	N/A	-- [8]	Normal	0
4.data.directory:4444	913462	0	N/A	-- [8]	Normal	0

[1] The number of changes that are still missing on this element (and that have been applied to at least one other server).
[2] Age of oldest missing change: the age (in seconds) of the oldest change that has not yet arrived on this element.