I am running VSS 1440 between two cisco 6509 switches. As of now, it supports only one supervisor per chassis. I have devices which are connected either of the two VSS members (single connectivity). VSL ports are on Supervisor Engine on both chassis. Now, if any of supervisor fails, what would happen to the devices connected to that switch? As per my understanding, those devices would lose the connectivity. I want to know whether the supervisor level redundancy can be achieved in this scanrio or not, if yes then how?