How many licenses are required for replication between Artifactory instances?

How many licenses are required for replication between Artifactory instances?

AuthorFullName__c
JFrog Support
articleNumber
000001214
ft:sourceType
Salesforce
FirstPublishedDate
2016-10-06T13:35:25Z
lastModifiedDate
2016-10-06
VersionNumber
3

Repository replication between two or more instances of Artifactory requires a separate pro license for each instance of Artifactory that is involved in the replication process; for example if you do a replication between two instances of Artifactory you will need two different Pro licenses.