I just went through a recent edirectory restore. All looks well on all everywhere, and ndsrepair is coming up clean on all aspects, however...
I am seeing entries for each server object in iMonitor under Process Status --> External Reference Status
09/17/12 04:49:03 PM -625 Create FFFFFFFF 000081C3 (myserver) Agent Summary, Agent Configuration, Agent Health 00008018 (mytree)
Conversely, no external references are present when ndsrepair -C is run on the master.
Fascinatingly, none of these servers are down and synchronization is functioning normally.
I suspect that this is an aftereffect of the following procedure,
Recovering the Database If Restore Verification Fails
Should I be concerned?