You must remove the interface sets
from an interface superset before you can delete the interface superset.
If the interface superset has a QoS profile attached or a QoS parameter
instance, all of these attachments are also deleted.
To delete an interface superset:
Remove the interface sets from the interface superset.
You must remove the members of an
interface set before you can delete the interface set. If the interface
set has a QoS profile attached or a QoS parameter instance, all of
these attachments are also deleted.
To delete an interface set:
Remove the interface set from the interface member.