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Some comments on model-04

John & Co

I have a few comments to make on the Model doc, most of them 
minor

i) you mention the term context prefix to refer to the root of a 
naming context, but mostly use the term root. I would prefer that 
you use context prefix consistently since a) this accords with X.518 
and b) it can keep the term root reserved for the root of the DIT

ii) last sentence of 4.6.1. I would like some clarification of what this 
actually means (A CSN is recorded.......).

iii) I believe there is a conflict between 8.2 and 10.3 concerning 
fractional replication. Either the fraction is sent only the attributes it 
contains (8.2) or the whole modification operation is sent (10.3) but 
not both.

iv) section 12, steps 5 and 6 for DSA2. I believe there is a bug 
here. In step 5 please state explicitly what the parent entry of the 
rep agreement NC1R1-R2 is. I believe it should be NC1R1. In step 
6 state explicitly what the parent of rep agreement NC1R2-R1. I 
believe it should be NC1R2. Hence the rep agreements are not 
siblings, as they dont have the same parent. (otherwise I have 
misunderstood the model and perhaps some more text somewhere 
to clarify this)

v) It is interesting that step 5 above said take a copy of the rep 
agreement, whereas in section 14 it states that autentication 
information should never be replicated between replicas. Perhaps 
this statements are slightly at odds with each other. Also , if 
password authentication is being employed, then the password will 
need to be replicated between the DSAs, thus section 14 is wrong.

David

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David Chadwick
IS Institute, University of Salford, Salford M5 4WT
Tel +44 161 295 5351  Fax +44 161 745 8169
Mobile +44 790 167 0359
Email D.W.Chadwick@xxxxxxxxxxxxx
Home Page  http://www.salford.ac.uk/its024/chadwick.htm
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