reworked protocol switch
reworked protocol switch

ntop/PF_RING,ntop/PF_RING,opencTM/PF_RING,ntop/PF_RING,ntop/PF_RING,opencTM/PF_RING,ntop/PF_RING,opencTM/PF_RING,opencTM/PF_RING,ntop/PF_RING,ntop/PF_RING