### Maximum Name Sizes

The table below lists the maximum sizes for directory service names. Note that the limits are implementation specific, not architectural.

Maximum Sizes of Directory Service Names

Name Type | Maximum Size (characters)
CDS simple name (character string between two slashes) | 254
CDS full name (including global or local prefix, cell name, and slashes separating simple names) | 1023
GDS relative distinguished name | 64
GDS distinguished name | 1024
DNS relative name (character string between two dots) | 64
DNS fully qualified name (sum of all relative names) | 255

More:

Valid Characters for GDS Attributes

T61 Syntax

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