Re: [ldapext] VLV: a particular target entry

["Kurt D. Zeilenga" <Kurt@OpenLDAP.org>]

At 07:21 AM 2002-10-01, David Boreham wrote:
>> Do you not see that VLV is broken without selection by DN.
>> That is, the VLV scroll up/down mechanism fails in the
>> general case, e.g. when content is unstable.
>
>Highly unstable content isn't within the scope of this
>protocol.

Note that I did not say "highly unstable".  I said "unstable".
That is, one entry add/modification/delete is sufficient
to cause this protocol to fail.

>Directories typically don't have highly unstable content.

But directories typically do change.  And any change is
sufficient to cause failure in this protocol.

>Kurt: do you have a counterexample ? e.g. something
>you tried to implement with the current protocol but failed 
>to get to work ? Tell us about it.

Based upon my operational experience with implementing similar
controls, it is obvious to me that the current protocol fails
where contain is not stable.  In particular, were DIT
modification causes the positioning of entries in the list to
shift.

Kurt

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