VSF link
A VSF link is a logical interface that connects VSF member devices. Every VSF-capable device supports a VSF link.
I-Link<Member ID>_1
is the default VSF link name.
To configure a VSF link, a minimum of one physical interface should be bound to the link. The bound physical interfaces are automatically aggregated to form a VSF link. A VSF link goes down only if all its VSF physical interfaces are down.