NSFNET Traffic Distribution Highlights February 1993 Packet Total: 30,006,999,150 Byte Total: 5,437,317,967,750 Service Name Port Rank Packet Count % Pkts Rank Byte Count % Byts ============ ==== ==== ============ ====== ==== ============= ====== ftp-data 20 1 7115687250 23.713 1 2514638790500 46.248 telnet 23 2 4766186200 15.884 4 322953829050 5.940 nntp 119 3 2580606700 8.600 2 541514466350 9.959 smtp 25 4 2138597700 7.127 3 351940605500 6.473 domain 53 5 1616739000 5.388 5 145411803750 2.674 ftp 21 6 609081250 2.030 9 53725828050 0.988 irc 6667 7 601829250 2.006 8 55562910400 1.022 icmp -1 8 562605400 1.875 10 49872298650 0.917 vmnet 175 9 408769650 1.362 6 144729610150 2.662 gopher 70 10 256061750 0.853 7 60897391700 1.120 X0 6000 11 228771100 0.762 11 40003337350 0.736 login/who 513 12 195784900 0.652 13 19020881100 0.350 (unknown) 1023 13 164069000 0.547 14 17996807450 0.331 talk 517 14 159947200 0.533 15 16425401050 0.302 finger 79 15 144621300 0.482 19 13534490000 0.249 snmp 161 16 141282350 0.471 16 16166783150 0.297 ntp 123 17 114501900 0.382 22 8720814550 0.160 (unknown) 1022 18 85080150 0.284 17 15199132250 0.280 cmd/syslog 514 19 72135250 0.240 12 22025055400 0.405 uucp 540 20 54686850 0.182 20 10303646050 0.189 (unknown) 1021 21 45599150 0.152 21 8774225550 0.161 efs/router 520 22 44598000 0.149 18 14150743750 0.260 ntalk 518 23 43542850 0.145 29 4652704100 0.086 (unknown) 1020 24 32170700 0.107 24 7605114200 0.140 (unknown) 76 25 24301650 0.081 26 5919793000 0.109 (unknown) 700 26 22256250 0.074 25 5942729800 0.109 bgp 179 27 21648350 0.072 45 1270457000 0.023 (unknown) 703 28 18679650 0.062 27 5609950550 0.103 z39.50 210 29 16575600 0.055 30 4591203100 0.084 (unknown) 1019 30 15661300 0.052 35 2880455250 0.053 X1 6001 58 2969200 0.010 62 502135550 0.009 shilp/sun-nfs 2049 70 2047150 0.007 69 378441900 0.007 www 80 72 1969900 0.007 61 511666150 0.009 iso-ip -80 86 1203650 0.004 60 566187350 0.010 X2 6002 223 146050 0.000 309 15443300 0.000 X3 6003 470 47150 0.000 432 8786800 0.000 prospero 191 680 14250 0.000 389 9921450 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-9302.ports" on the nsfnet/statistics/1993 directory.