A fibre channel frame is received at a first fibre channel switch. The fibre channel frame includes time stamp information associated with fibre channel switches between a second fibre channel switch and the first fibre channel switch. A time-to-live (TTL) value included in the fibre channel frame is...http://www.google.com.tw/patents/US7830809?utm_source=gb-gplus-share專利 US7830809 - Methods and apparatus for characterizing a route in a fibre channel fabric
