The only elements in the FC SAN which require {HEAD ~ modification} to support {TAIL ~ the FAST protocol} are the FAST IOC and FAST switch 
to support
The only elements in the FC SAN which require { HEAD ~ modification } to support { TAIL ~ the FAST protocol } are the FAST IOC and FAST switch
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH