An unrouted interface usually reflects a layer 2 VLAN
ex)
ifDescr.63: Vlan 2
This refers to the SVI (switch virtual interface or L3 vlan interface)
ifDescr.69: unrouted VLAN 2
This refers to the L2 vlans or the output from 'show vlan'.
so the unrouted will give you all L2 traffic on that VLAN