Specifications

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Interface Tested:
OC12 POS
Test Date: 5/26/99
router router router router input output input output
input bps output bps input pps output pps ppp ohead ppp ohead hdlc ohead hdlc ohead
Packet Size 48bits/pkt 48bits/pkt 8bits/pkt 8bits/pkt
48 509596896 509794664 1592491 1593109 76439568 76469232 12739928 12744872
64 519715208 519715576 1412271 1412270 67789008 67788960 11298168 11298160
120 561928048 561928048 662651 662651 31807248 31807248 5301208 5301208
128 563196576 563196584 639997 639997 30719856 30719856 5119976 5119976
256 581915712 581917616 305628 305629 14670144 14670192 2445024 2445032
300 584522832 584522832 259097 259097 12436656 12436656 2072776 2072776
512 590661968 590661968 149459 149459 7174032 7174032 1195672 1195672
1024 594892064 594304560 73917 73845 3548016 3544560 591336 590760
1500 596214528 596214528 50288 50288 2413824 2413824 402304 402304
mix 525449488 525451232 1313611 1313615 63053328 63053520 10508888 10508920
input bps output bps input output input output
without without sonet sonet input bps output bps percent percent
Packet Size sonet ohead sonet ohead overhead overhead total total line rate line rate
48 598776392 599008768 23040000 23040000 621816392 622048768 0.999576 0.999950
64 598802384 598802696 23040000 23040000 621842384 621842696 0.999618 0.999619
120 599036504 599036504 23040000 23040000 622076504 622076504 0.999994 0.999994
128 599036408 599036416 23040000 23040000 622076408 622076416 0.999994 0.999994
256 599030880 599032840 23040000 23040000 622070880 622072840 0.999985 0.999988
300 599032264 599032264 23040000 23040000 622072264 622072264 0.999988 0.999988
512 599031672 599031672 23040000 23040000 622071672 622071672 0.999987 0.999987
1024 599031416 598439880 23040000 23040000 622071416 621479880 0.999986 0.999035
1500 599030656 599030656 23040000 23040000 622070656 622070656 0.999985 0.999985
mix 599011704 599013672 23040000 23040000 622051704 622053672 0.999955 0.999958
Field Descriptions
Packet Size Size of packet generated by Smartbits traffic simulator.
Router Input BPS Bits per second received by test interface (excludes layer 1/2 overhead)
Router Output BPS Bits per second transmitted by test interface (excludes layer 1/2 overhead)
Router Input PPS IP Packets per second received by test interface
Router Input PPS IP Packets per second transmitted by test interface
Input PPP Ohead Encapsulation overhead received for PPP line protocol (6 bytes per packet)
Output PPP Ohead Encapsulation overhead transmitted for PPP line protocol (6 bytes per packet)
Input HDLC Ohead Framing overhead received for sequencing line protocol (1 byte per packet)
Output HDLC Ohead Framing overhead transmitted for sequencing line protocol (1 byte per packet)
Input BPS without Ohead Aggregate BPS of IP packet + PPP overhead + HDLC overhead
Output BPS without Ohead Aggregate BPS of IP packet + PPP overhead + HDLC overhead
Input SONET Ohead Input overhead for SONET line framing
Output SONET Ohead Output overhead for SONET line framing
Input BPS Total Aggregate BPS of IP packet + PPP overhead + HDLC overhead + SONET overhead
Output BPS Total Aggregate BPS of IP packet + PPP overhead + HDLC overhead + SONET overhead
Input percent Line Rate "Input BPS Total" / clock rate of wire (622080000) = Input percent Line Rate
Output percent Line Rate "Output BPS Total" / clock rate of wire (622080000) = Output percent Line Rate