taglinefilesource code
protid1157drivers/net/ibmtr.cllc->dsap,llc->ssap,llc->llc,llc->protid[0],llc->protid[1],llc->protid[2],llc->ethertype);
protid61include/linux/if_tr.hunsigned char   protid[3];  /* protocol id */
protid59net/802/tr.ctrllc->protid[0]=trllc->protid[1]=trllc->protid[2]=0x00;