Specifications

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Interface Tested:
OC3 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 127408624 127408624 398151 398151 19111248 19111248 3185208 3185208
64 129978704 129978336 353202 353202 16953696 16953696 2825616 2825616
120 140139840 140139840 171740 171740 8243520 8243520 1373920 1373920
128 140798240 140798240 159998 159998 7679904 7679904 1279984 1279984
256 145478928 145478928 76407 76407 3667536 3667536 611256 611256
300 146012832 146015088 64722 64723 3106656 3106704 517776 517784
512 147666480 147662528 37364 37364 1793472 1793472 298912 298912
1024 148718992 148574128 18480 18461 887040 886128 147840 147688
1500 149053632 149053632 12572 12572 603456 603456 100576 100576
mix 131367200 131366800 328417 328417 15764016 15764016 2627336 2627336
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 149705080 149705080 5760000 5760000 155465080 155465080 0.999647 0.999647
64 149758016 149757648 5760000 5760000 155518016 155517648 0.999987 0.999985
120 149757280 149757280 5760000 5760000 155517280 155517280 0.999983 0.999983
128 149758128 149758128 5760000 5760000 155518128 155518128 0.999988 0.999988
256 149757720 149757720 5760000 5760000 155517720 155517720 0.999985 0.999985
300 149637264 149639576 5760000 5760000 155397264 155399576 0.999211 0.999226
512 149758864 149754912 5760000 5760000 155518864 155514912 0.999993 0.999967
1024 149753872 149607944 5760000 5760000 155513872 155367944 0.999961 0.999022
1500 149757664 149757664 5760000 5760000 155517664 155517664 0.999985 0.999985
mix 149758552 149758152 5760000 5760000 155518552 155518152 0.999991 0.999988
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 (155520000) = Input percent Line Rate
Output percent Line Rate "Output BPS Total" / clock rate of wire (155520000) = Output percent Line Rate