What version of iperf? It it's iperf 2.0.13 use -B on the server to bind to the multicast address. Then just send to it on the client. -u is required for multicast. Also, for source specific multicast (SSM) -H sets the source.
[root@localhost ~]# iperf -s -u -B 239.1.1.1 -i 1 -e ------------------------------------------------------------ Server listening on UDP port 5001 with pid 3740 Binding to local address 239.1.1.1 Joining multicast group 239.1.1.1 Receiving 1470 byte datagrams UDP buffer size: 208 KByte (default) ------------------------------------------------------------ [ 3] local 239.1.1.1 port 5001 connected with 10.19.87.9 port 39636 [ ID] Interval Transfer Bandwidth Jitter Lost/Total Latency avg/min/max/stdev PPS NetPwr [ 3] 0.00-1.00 sec 1.19 MBytes 10.0 Mbits/sec 0.019 ms 0/ 851 (0%) 0.281/ 0.143/ 0.337/ 0.022 ms 851 pps 4456.57 [ 3] 1.00-2.00 sec 1.19 MBytes 10.0 Mbits/sec 0.019 ms 0/ 851 (0%) 0.278/ 0.137/ 0.314/ 0.019 ms 850 pps 4499.51 [ 3] 2.00-3.00 sec 1.19 MBytes 10.0 Mbits/sec 0.014 ms 0/ 850 (0%) 0.279/ 0.119/ 0.314/ 0.020 ms 850 pps 4472.93 [ 3] 3.00-4.00 sec 1.19 MBytes 10.0 Mbits/sec 0.017 ms 0/ 850 (0%) 0.283/ 0.100/ 0.317/ 0.020 ms 850 pps 4408.85 [ 3] 4.00-5.00 sec 1.19 MBytes 10.0 Mbits/sec 0.020 ms 0/ 851 (0%) 0.279/ 0.086/ 0.320/ 0.023 ms 850 pps 4478.99 [ 3] 5.00-6.00 sec 1.19 MBytes 10.0 Mbits/sec 0.014 ms 0/ 850 (0%) 0.281/ 0.145/ 0.327/ 0.019 ms 850 pps 4451.73 [ 3] 6.00-7.00 sec 1.19 MBytes 10.0 Mbits/sec 0.019 ms 0/ 850 (0%) 0.279/ 0.143/ 0.318/ 0.021 ms 850 pps 4485.99 [ 3] 7.00-8.00 sec 1.19 MBytes 10.0 Mbits/sec 0.016 ms 0/ 851 (0%) 0.280/ 0.090/ 0.331/ 0.020 ms 850 pps 4467.64 [ 3] 8.00-9.00 sec 1.19 MBytes 10.0 Mbits/sec 0.018 ms 0/ 850 (0%) 0.279/ 0.151/ 0.312/ 0.019 ms 850 pps 4484.26 [ 3] 9.00-10.00 sec 1.19 MBytes 10.0 Mbits/sec 0.016 ms 0/ 850 (0%) 0.280/ 0.119/ 0.313/ 0.018 ms 850 pps 4464.02 [ 3] 0.00-10.00 sec 11.9 MBytes 10.0 Mbits/sec 0.016 ms 0/ 8504 (0%) 0.280/ 0.086/ 0.337/ 0.020 ms 850 pps 4471.46 [root@localhost ~]# iperf -v iperf version 2.0.13 (21 Jan 2019) pthreads [root@localhost ~]# iperf -s -u -B 239.1.1.1 -i 1 -e -H 10.19.87.9 ------------------------------------------------------------ Server listening on UDP port 5001 with pid 3775 Binding to local address 239.1.1.1 Joining multicast (S,G)=10.19.87.9,239.1.1.1 Receiving 1470 byte datagrams UDP buffer size: 208 KByte (default) ------------------------------------------------------------ [ 3] local 239.1.1.1 port 5001 connected with 10.19.87.9 port 34019 [ ID] Interval Transfer Bandwidth Jitter Lost/Total Latency avg/min/max/stdev PPS NetPwr [ 3] 0.00-1.00 sec 1.19 MBytes 10.0 Mbits/sec 0.017 ms 0/ 851 (0%) 0.278/ 0.114/ 0.336/ 0.022 ms 851 pps 4507.27 [ 3] 1.00-2.00 sec 1.19 MBytes 10.0 Mbits/sec 0.022 ms 0/ 851 (0%) 0.275/ 0.097/ 0.309/ 0.021 ms 850 pps 4545.51 [ 3] 2.00-3.00 sec 1.19 MBytes 10.0 Mbits/sec 0.017 ms 0/ 850 (0%) 0.277/ 0.101/ 0.319/ 0.022 ms 850 pps 4515.47 [ 3] 3.00-4.00 sec 1.19 MBytes 10.0 Mbits/sec 0.016 ms 0/ 850 (0%) 0.280/ 0.084/ 0.317/ 0.019 ms 850 pps 4458.27 [ 3] 4.00-5.00 sec 1.19 MBytes 10.0 Mbits/sec 0.016 ms 0/ 851 (0%) 0.281/ 0.069/ 0.311/ 0.019 ms 850 pps 4448.61 [ 3] 5.00-6.00 sec 1.19 MBytes 10.0 Mbits/sec 0.019 ms 0/ 850 (0%) 0.279/ 0.147/ 0.328/ 0.019 ms 850 pps 4479.95 [ 3] 6.00-7.00 sec 1.19 MBytes 10.0 Mbits/sec 0.018 ms 0/ 850 (0%) 0.278/ 0.076/ 0.316/ 0.022 ms 850 pps 4494.78 [ 3] 7.00-8.00 sec 1.19 MBytes 10.0 Mbits/sec 0.010 ms 0/ 851 (0%) 0.279/ 0.095/ 0.314/ 0.019 ms 850 pps 4489.47 [ 3] 8.00-9.00 sec 1.19 MBytes 10.0 Mbits/sec 0.017 ms 0/ 850 (0%) 0.275/ 0.145/ 0.309/ 0.019 ms 850 pps 4543.46 [ 3] 9.00-10.00 sec 1.19 MBytes 10.0 Mbits/sec 0.017 ms 0/ 850 (0%) 0.274/ 0.108/ 0.319/ 0.021 ms 850 pps 4554.06 [ 3] 0.00-10.00 sec 11.9 MBytes 10.0 Mbits/sec 0.017 ms 0/ 8504 (0%) 0.277/ 0.069/ 0.336/ 0.020 ms 850 pps 4508.09 [root@localhost ~]# iperf -c 239.1.1.1 -u -i 1 -e -b 10m ------------------------------------------------------------ Client connecting to 239.1.1.1, UDP port 5001 with pid 4727 Sending 1470 byte datagrams, IPG target: 1176.00 us (kalman adjust) Setting multicast TTL to 1 UDP buffer size: 208 KByte (default) ------------------------------------------------------------ [ 3] local 10.19.87.9 port 39636 connected with 239.1.1.1 port 5001 [ ID] Interval Transfer Bandwidth Write/Err PPS [ 3] 0.00-1.00 sec 1.19 MBytes 10.0 Mbits/sec 852/0 851 pps [ 3] 1.00-2.00 sec 1.19 MBytes 10.0 Mbits/sec 850/0 850 pps [ 3] 2.00-3.00 sec 1.19 MBytes 10.0 Mbits/sec 850/0 850 pps [ 3] 3.00-4.00 sec 1.19 MBytes 10.0 Mbits/sec 851/0 850 pps [ 3] 4.00-5.00 sec 1.19 MBytes 10.0 Mbits/sec 850/0 850 pps [ 3] 5.00-6.00 sec 1.19 MBytes 10.0 Mbits/sec 850/0 850 pps [ 3] 6.00-7.00 sec 1.19 MBytes 10.0 Mbits/sec 851/0 850 pps [ 3] 7.00-8.00 sec 1.19 MBytes 10.0 Mbits/sec 850/0 850 pps [ 3] 8.00-9.00 sec 1.19 MBytes 10.0 Mbits/sec 850/0 850 pps [ 3] 0.00-10.00 sec 11.9 MBytes 10.0 Mbits/sec 8504/0 850 pps [ 3] Sent 8504 datagrams Bob On Mon, Jun 29, 2020 at 1:47 AM Andrew Morcos <andrewmor...@outlook.com> wrote: > Hello, > > > > I’m trying to bind from multiple terminals into a random multicast address > on Iperf. Once I send datagrams via the client into that multicast address, > I can’t get any report on client or server side that datagrams were > received. Is there any steps I should do before proceeding with multicast > (configurations or adding multicast IP addresses into multiple interfaces)? > > > > Thank you > > > > Andrew Morcos > > > > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for > Windows 10 > > > _______________________________________________ > Iperf-users mailing list > Iperf-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/iperf-users >
_______________________________________________ Iperf-users mailing list Iperf-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/iperf-users
