SAN Switch Connectrix DS300 / Brocade 300 Fabric License ?

Hi,

We have 2 SAN Switch here Connectrix DS300 And Brocade 300, when i do licenshow, in connectrix i see "Fabric license,Enhanced Group Management license,8 Gig FC license' on brocade i see "8 Gig FC license". I Use FOS v6.4.3g,  I cant find information about  "Fabric license"  description, is this mean Brocade 300 cant function as a SAN Switch ?

Thx