NSFNET Traffic Distribution Highlights January 1993 Packet Total: 27,459,168,150 Byte Total: 5,159,543,112,250 Service Name Port Rank Packet Count % Pkts Rank Byte Count % Byts ============ ==== ==== ============ ====== ==== ============= ====== ftp-data 20 1 6794442500 24.744 1 2412315213850 46.754 telnet 23 2 4160481250 15.152 4 278336875000 5.395 nntp 119 3 2440549750 8.888 2 509546469450 9.876 smtp 25 4 1827855150 6.657 3 301358808150 5.841 domain 53 5 1560403900 5.683 5 147486292300 2.859 ftp 21 6 555947550 2.025 9 43257755200 0.838 irc 6667 7 533078650 1.941 8 46335270350 0.898 icmp -1 8 504434200 1.837 11 42369688900 0.821 vmnet 175 9 372480050 1.356 6 131039759300 2.540 X0 6000 10 224638000 0.818 12 41125146500 0.797 login/who 513 11 191196750 0.696 15 18349453950 0.356 gopher 70 12 187225100 0.682 10 43238448800 0.838 (unknown) 1023 13 168644250 0.614 16 18068524050 0.350 snmp 161 14 145360100 0.529 17 15977569750 0.310 finger 79 15 133303800 0.485 19 12239523950 0.237 ntp 123 16 131845300 0.480 21 10045369250 0.195 (unknown) 900 17 93107000 0.339 7 48242658350 0.935 (unknown) 1022 18 89549550 0.326 18 13488986450 0.261 talk 517 19 87082250 0.317 24 8874658700 0.172 cmd/syslog 514 20 70356000 0.256 13 26907320900 0.522 (unknown) 1021 21 63454450 0.231 20 12096609050 0.234 efs/router 520 22 62584800 0.228 14 18473418700 0.358 uucp 540 23 51636800 0.188 22 9911015350 0.192 (unknown) 1020 24 44420550 0.162 23 8890700700 0.172 ntalk 518 25 33812400 0.123 33 3699164750 0.072 (unknown) 700 26 22186950 0.081 27 5574766900 0.108 (unknown) 1019 27 21756550 0.079 28 4366954750 0.085 bgp 179 28 19593200 0.071 47 1302786650 0.025 (unknown) 76 29 18318800 0.067 29 4270222200 0.083 discard 9 30 17687650 0.064 62 710540000 0.014 z39.50 210 34 12502550 0.046 36 3522869800 0.068 shilp/sun-nfs 2049 63 3459700 0.013 61 723197000 0.014 iso-ip -80 80 1792600 0.007 56 880551550 0.017 X1 6001 102 932950 0.003 116 122755900 0.002 www 80 127 511450 0.002 117 122440450 0.002 X2 6002 519 53050 0.000 537 6150400 0.000 X3 6003 712 14400 0.000 993 1349600 0.000 prospero 191 729 13000 0.000 453 9253050 0.000 Ordered by decreasing packet counts, this table includes the top 30 services and highlights other selected services. Information for this report is available only for TCP/UDP port numbers 0-1023, 2049, 6000-6003, 6667, and all Internet Protocols (differentiated from TCP/UDP ports by negating the protocol number). More detailed information is available for Anonymous FTP from NIC.MERIT.EDU (the Merit NIC Services machine) in the file "nsf-9301.ports" on the nsfnet/statistics/1993 directory.