Instead of displaying only the hostname part before the first dot it should display the FQDN.
If you have a distinct naming scheme (e.g. BR1.site1.domain.com, BR1.site2.domain.com for BorderRouter1 and BorderRouter2) you will easily loose the full insight of your network as it is not clear if you operate on site 1 or site2 border router.
If the configured FQDN is displayed this problem is gone.