Range Filters Section 5.1.3 can be used in SUBSCRIBE_TRACKS to filter Tracks in a namespace using the Track Property Filter. Objects published in the resulting Subscriptions can be filtered by any Range Filter.
6.3.1. Relay Resource Protection in Large Namespaces
Relays SHOULD aggregate and propagate filters upstream on subscriptions, especially namespace subscriptions, to conserve and protect their resources from excessive load. They MAY also impose limits on the number of publishers in a namespace, by rejecting or closing namespace subscriptions with the error NAMESPACE_TOO_LARGE, or CONFLICTING_FILTERS if too many disjoint filters are requested on downstream subscriptions across a large number of subscribers, or PREFIX_OVERLAP if different subscribers force an aggregated upstream subscription to overlap.