The tunnel can be assigned {TAIL ~ certain quality} of service elements such as Enhance Transmission service groups, {HEAD ~ priorities} within Per Flow Control, a TRILL or a SPB path 
The tunnel can be assigned { TAIL ~ certain quality } of service elements such as Enhance Transmission service groups , { HEAD ~ priorities } within Per Flow Control , a TRILL or a SPB path
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH