The destination port in SPAN and RSPAN does not participate in sending or receiving normal network traffic other then monitored trafffic bydefault and that is the reason you will see the interface status for destination port as line protocl down (monitored) so you can leave it as it is in default vlan 1.
NOW if you want that destination port to participate as normal network port in addition to monitoring traffic you can use command "ingress" with vlan number for which you want that port to participate in sending and receiving traffic.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...