Specifications
Page 144 /148
Interface Tested:
OC48 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 1816965440 1817297600 5678018 5679055 272544864 272594640 45424144 45432440
64 2014021560 2014143232 5472884 5473215 262698432 262714320 43783072 43785720
120 2242243152 2242228464 2747848 2747829 131896704 131895792 21982784 21982632
128 2252765680 2252749840 2559961 2559943 122878128 122877264 20479688 20479544
256 2327678080 2327664752 1222521 1222513 58681008 58680624 9780168 9780104
300 2338093584 2338080048 1036389 1036383 49746672 49746384 8291112 8291064
512 2362549072 2362639968 597812 597834 28694976 28696032 4782496 4782672
1024 2379576304 2379552160 295673 295670 14192304 14192160 2365384 2365360
1500 2384858112 2384775120 201152 201145 9655296 9654960 1609216 1609160
mix 2095328800 2095334400 5238322 5238336 251439456 251440128 41906576 41906688
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 2134934448 2135324680 92160000 92160000 2227094448 2227484680 0.895019 0.895176
64 2320503064 2320643272 92160000 92160000 2412663064 2412803272 0.969595 0.969652
120 2396122640 2396106888 92160000 92160000 2488282640 2488266888 0.999985 0.999979
128 2396123496 2396106648 92160000 92160000 2488283496 2488266648 0.999985 0.999979
256 2396139256 2396125480 92160000 92160000 2488299256 2488285480 0.999992 0.999986
300 2396131368 2396117496 92160000 92160000 2488291368 2488277496 0.999988 0.999983
512 2396026544 2396118672 92160000 92160000 2488186544 2488278672 0.999946 0.999983
1024 2396133992 2396109680 92160000 92160000 2488293992 2488269680 0.999990 0.999980
1500 2396122624 2396039240 92160000 92160000 2488282624 2488199240 0.999985 0.999951
mix 2388674832 2388681216 92160000 92160000 2480834832 2480841216 0.996992 0.996994
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 (2488320000) = Input percent Line Rate
Output percent Line Rate "Output BPS Total" / clock rate of wire (2488320000) = Output percent Line Rate