ATALK-ZIS
The Zone Information Protocol was the protocol by which AppleTalk network numbers were associated with zone names. A zone was a subdivision of the network that made sense to humans. While a network number had to be assigned to a topologically-contiguous section of the network, a zone could include several different discontiguous portions of the network.
Available to all SRX running 12.3X48+
Available to all MX running 20.2R1+
Available to all vSRX running 20.3R1+