To determine the maximum number of configurable MAC-VRF instances on a Juniper EX4650 switch, Please refer to the EVPN features documentation available at the SharePoint link below:
EVPN_Features.xlsx
Note: Configuration limits may vary based on Junos OS version and system resources. Always consult the latest official documentation.
Multiple creation of mac-vrf instance caused CPU spike
EVPN-VXLAN maximum number of mac-vrf VLAN aware instances limit is 2000 and mac-vrf VLAN based instances limit is 4000.