Iperf udb 의 bandwidth 와 그냥 bandwith 의 차이는 뭘까요?
테스트 결과
1)그냥 TCP 로 체크한결과 : 대략 170M
2)UDP 로 300M 정도 체크한결과 : 대략 280M
3)UDP 로 900M 정도 체크한결과 : 대략 400M
그러나 2),3) 번 공실히 170M 가 server 로부터 답이 오네요...
이 구간의 bandwitdh 는 정확하게 얼마라고 보는게 정확할까요?
sh-3.2# ./iperf_Linux_PC -c 1.1.1.1 -i 1
------------------------------------------------------------
Client connecting to 1.1.1.1, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 3] local 1.1.1.3 port 52905 connected with 1.1.1.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 8.02 MBytes 67.2 Mbits/sec
[ 3] 1.0- 2.0 sec 12.8 MBytes 107 Mbits/sec
[ 3] 2.0- 3.0 sec 16.0 MBytes 135 Mbits/sec
[ 3] 3.0- 4.0 sec 18.3 MBytes 154 Mbits/sec
[ 3] 4.0- 5.0 sec 19.6 MBytes 164 Mbits/sec
[ 3] 5.0- 6.0 sec 20.2 MBytes 169 Mbits/sec
[ 3] 6.0- 7.0 sec 20.2 MBytes 169 Mbits/sec
[ 3] 7.0- 8.0 sec 19.9 MBytes 167 Mbits/sec
[ 3] 8.0- 9.0 sec 19.9 MBytes 167 Mbits/sec
[ 3] 9.0-10.0 sec 19.5 MBytes 164 Mbits/sec
[ 3] 0.0-10.0 sec 174 MBytes 146 Mbits/sec
sh-3.2# ./iperf_Linux_PC -c 1.1.1.1 -u -b 300M -i 1
------------------------------------------------------------
Client connecting to 1.1.1.1, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size: 110 KByte (default)
------------------------------------------------------------
[ 3] local 1.1.1.3 port 41475 connected with 1.1.1.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 33.8 MBytes 284 Mbits/sec
[ 3] 1.0- 2.0 sec 33.6 MBytes 282 Mbits/sec
[ 3] 2.0- 3.0 sec 33.7 MBytes 283 Mbits/sec
[ 3] 3.0- 4.0 sec 34.3 MBytes 288 Mbits/sec
[ 3] 4.0- 5.0 sec 33.7 MBytes 283 Mbits/sec
[ 3] 5.0- 6.0 sec 33.9 MBytes 284 Mbits/sec
[ 3] 6.0- 7.0 sec 34.0 MBytes 286 Mbits/sec
[ 3] 7.0- 8.0 sec 33.1 MBytes 278 Mbits/sec
[ 3] 8.0- 9.0 sec 34.5 MBytes 290 Mbits/sec
[ 3] 9.0-10.0 sec 34.1 MBytes 286 Mbits/sec
[ 3] 0.0-10.0 sec 339 MBytes 284 Mbits/sec
[ 3] Sent 241623 datagrams
[ 3] Server Report:
[ 3] 0.0-10.0 sec 218 MBytes 183 Mbits/sec 0.521 ms 85814/241622 (36%)
[ 3] 0.0-10.0 sec 1 datagrams received out-of-order
sh-3.2# ./iperf_Linux_PC -c 1.1.1.1 -u -b 900M -i 1
------------------------------------------------------------
Client connecting to 1.1.1.1, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size: 110 KByte (default)
------------------------------------------------------------
[ 3] local 1.1.1.3 port 56091 connected with 1.1.1.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 43.8 MBytes 368 Mbits/sec
[ 3] 1.0- 2.0 sec 45.7 MBytes 384 Mbits/sec
[ 3] 2.0- 3.0 sec 48.6 MBytes 408 Mbits/sec
[ 3] 3.0- 4.0 sec 48.6 MBytes 408 Mbits/sec
[ 3] 4.0- 5.0 sec 48.6 MBytes 408 Mbits/sec
[ 3] 5.0- 6.0 sec 51.1 MBytes 429 Mbits/sec
[ 3] 6.0- 7.0 sec 51.0 MBytes 428 Mbits/sec
[ 3] 7.0- 8.0 sec 51.0 MBytes 428 Mbits/sec
[ 3] 8.0- 9.0 sec 51.4 MBytes 431 Mbits/sec
[ 3] 0.0-10.0 sec 491 MBytes 412 Mbits/sec
[ 3] Sent 350557 datagrams
[ 3] Server Report:
[ 3] 0.0-10.3 sec 219 MBytes 179 Mbits/sec 15.122 ms 194414/350555 (55%)
[ 3] 0.0-10.3 sec 1 datagrams received out-of-order
sh-3.2#
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