Folks, Sorry for the slightly off-topic post. Is anyone familiar with optical splitters that can run in a primary-backup mode in a passive way? The intent is to provide GigE redundancy between a host and a pair of switches. It needs to be able to switch over on a loss-of-link condition, and preferably switch back once the primary comes online. Does such a thing exist that runs without power? If not, is there a manageable, rackmount solution with telco-grade reliability? TIA, chris