Robert McMahon - 2024-02-29

Human output diff here
dscp option support diff here

[rjmcmahon@fedora iperf2-code]$ src/iperf -c 192.168.1.35 -i 1 -e --tos 181
IP_TOS setting to 0xb5 failed got 0xb4 failed
------------------------------------------------------------
Client connecting to 192.168.1.35, TCP port 5001 with pid 193372 (1/0 flows/load)
Write buffer size: 131072 Byte
TCP congestion control using cubic
TOS set to 0xb5 (dscp=45,ecn=1) (warn ecn bits set) (Nagle on)
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  1] local 192.168.1.103%enp4s0 port 55076 connected with 192.168.1.35 port 5001 (sock=3) (tos tx=0xb5,dscp=45,ecn=1) (icwnd/mss/irtt=14/1448/171) (ct=0.39 ms) on 2024-02-29 12:47:15.335 (PST)
[ ID] Interval        Transfer    Bandwidth       Write/Err  Rtry     Cwnd/RTT(var)        NetPwr
[  1] 0.00-1.00 sec   115 MBytes   966 Mbits/sec  921/0        71     1050K/8833(96) us  13667
[  1] 1.00-2.00 sec   112 MBytes   941 Mbits/sec  897/0         0     1129K/9593(80) us  12256
^C[  1] 0.00-2.07 sec   232 MBytes   936 Mbits/sec  1852/0        71     1135K/9700(155) us  12068
[rjmcmahon@fedora iperf2-code]$ ^C
[rjmcmahon@fedora iperf2-code]$ src/iperf -c 192.168.1.35 -i 1 -e --dscp 45
------------------------------------------------------------
Client connecting to 192.168.1.35, TCP port 5001 with pid 193383 (1/0 flows/load)
Write buffer size: 131072 Byte
TCP congestion control using cubic
TOS set to 0xb4 (dscp=45,ecn=0) (Nagle on)
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  1] local 192.168.1.103%enp4s0 port 39926 connected with 192.168.1.35 port 5001 (sock=3) (tos tx=0xb4,dscp=45,ecn=0) (icwnd/mss/irtt=14/1448/163) (ct=0.21 ms) on 2024-02-29 12:47:32.143 (PST)
[ ID] Interval        Transfer    Bandwidth       Write/Err  Rtry     Cwnd/RTT(var)        NetPwr
[  1] 0.00-1.00 sec   116 MBytes   972 Mbits/sec  927/0        71     1534K/13101(103) us  9274
[  1] 1.00-2.00 sec   112 MBytes   941 Mbits/sec  897/0         0     1675K/14359(120) us  8188
^C[  1] 0.00-2.23 sec   250 MBytes   939 Mbits/sec  2000/0        71     1702K/14624(116) us  8022
 

Last edit: Robert McMahon 2024-02-29