[FROG] query with evpn import

Hi, i have two host with frr connect to spine doing ebgp underlay and evpn overlay, both the hosts have a vtep with same vni-id connected to bridge and this bridge also has a veth interface those pair is connected to namespace. the namespace on both the host is part of same subnet and are able to ping each other via evpn. my query is both the hosts frr are using different asn so their RT is shown as ASN:vni in the evpn routes , how are they able to ping each other if the the RT values are different and i have not given any explicit import statement in bgp evpn configuration. Regards senthilkumar