I know that we an SVI can be 'up' with either an access or a trunk port allowing the related VLAN.
Lets say on Switch 1 we have a routed port on a switch (subnet x.x.x.x), an SVI (subnet y.y.y.y/24) and two trunks connected to different switches (Switch 2 and Switch 3) which are in turn connected to different routers.
These far end routers are in the same subnet y.y.y.y/29 and want a next hop to reach x.x.x.x, hence the SVI.
The question is should an SVI have an access switchport associated with it (with a hard loop or a couple of ports connected together) or is it okay to leave it with just Trunk interfaces.
Will there be any difference in the overall routing behaviour/processing.
I am seeing abnormal CPU utilization with an approach where no access interface is associated with the SVI in Switch 1.