Sun Java System Directory Server Enterprise Edition 6.1 Deployment Planning Guide

Branch Points and Naming Considerations

A branch point is a point at which you define a new subdivision within the DIT. When deciding on branch points, avoid potential problematic name changes. The likelihood of a name changing is proportional to the number of components in the name that can potentially change. The more hierarchical the DIT, the more components in the names, and the more likely the names are to change.

Use the following guidelines when defining and naming branch points:

Table 4–1 Traditional DN Branch Point Attributes

Attribute Name  

Definition  

c

A country name. 

o

An organization name. This attribute is typically used to represent a large divisional branching. The branching might include a corporate division, academic discipline, subsidiary, or other major branching within the enterprise. You should also use this attribute to represent a domain name. 

ou

An organizational unit. This attribute is typically used to represent a smaller divisional branching of your enterprise than an organization. Organizational units are generally subordinate to the preceding organization. 

st

A state or province name. 

l

A locality, such as a city, country, office, or facility name. 

dc

A domain component. 

Be consistent when choosing attributes for branch points. Some LDAP client applications might fail if the DN format is inconsistent across your DIT. If l (localityName) is subordinate to o (organizationName) in one part of your DIT, ensure that l is subordinate to o in all other parts of your directory.