I have been suggested with http://www.directory.fedora.redhat.com/wiki/DNA_Plugin for understanding the DNA_plugin for auto IncrementalUID and GUID.
I can see the ldif format as:
 
dn: cn=Account UIDs,cn=Distributed Numeric Assignment Plugin,cn=plugins,cn=config
objectClass: top
objectClass: extensibleObject
cn: Account UIDs
dnatype: uidNumber
dnainterval: 1
dnamaxvalue: 1000
dnamagicregen: 0
dnathreshold: 100
dnafilter: (objectclass=posixAccount)
dnascope: dc=example,dc=com
dnasharedcfgdn: cn=Account UIDs,ou=Ranges,dc=example,dc=com
dnanextvalue: 1
dn: cn=Account GIDs,cn=Distributed Numeric Assignment Plugin,cn=plugins,cn=config
objectClass: top
objectClass: extensibleObject
cn: Account GIDs
dnatype: gidNumber
dnainterval: 1
dnamaxvalue: 1000
dnamagicregen: 0
dnathreshold: 100
dnafilter: (objectclass=posixAccount)
dnascope: dc=example,dc=com
dnasharedcfgdn: cn=Account GIDs,ou=Ranges,dc=example,dc=com
dnanextvalue: 1
May  I know how to add this to Directory Server.
All I can see through console is :cn=Distributed Numeric Assignment Plugin,cn=plugins,cn=config
Pls Suggest