Both Notification and Standard mode Sync Pipes can consume the same LDAP Change Log without affecting the other. Standard mode polls the change record in the change log for any modifications, fetches the full entries on the source and the destination, and then compares them for the specific changes. Notification mode gets the before and after values of a changed attribute to reconstruct an entry, and bypasses the fetch-and-compare phase. Both can consume the same LDAP Change Log with no performance loss or conflicts.
If the configuration obtains the change log through a PingDirectoryProxy server, the contents of the change log will not change as it is being read from the change logs on the directory server backend.