Hi Guys,
I’m trying to test VPP configuration with iperf3 and I running into the
following issue.
• Iperf3 client is able to make a connection with the server, but the
client receives data for the first 0-1 second and then it does not receive any
traffic from the server. The bitrate is zero after that.
Here’s my startup.conf and vcl.conf
STARTUP.CONF
unix {
nodaemon
log /var/log/vpp/vpp.log
full-coredump
cli-listen /run/vpp/cli.sock
gid vpp
## run vpp in the interactive mode
# interactive
## do not use colors in terminal output
# nocolor
## do not display banner
# nobanner
}
api-segment {
gid vpp
}
socksvr {
default
}
dpdk {
uio-driver vfio-pci
dev 0000:00:06.0 {
name eth1
}
}
buffers {
buffers-per-numa 65536
default data-size 2048
}
cpu {
main-core 0
workers 1
}
session {
evt_qs_memfd_seg
}
VCL.CONF
vcl {
rx-fifo-size 800000
tx-fifo-size 800000
app-scope-local
app-scope-global
api-socket-name /var/run/vpp/api.sock
}
Steps I followed:
• Set IP address through vpcctl
Iperf3 server command:
• export LD_PRELOAD=$LDP_PATH && export VCL_CONFIG=$VCL_CFG
• iperf3 -4 -s -A 1 -V
iperf3 client command:
• export LD_PRELOAD=$LDP_PATH && export VCL_CONFIG=$VCL_CFG
• iperf3 -c 10.21.120.181 -u -A 1 -V -b 0
Client side output:
iperf3 -c 10.21.120.181 -A 1 -V
iperf 3.7
Linux ip-10-21-120-48 5.13.0-1019-aws #21~20.04.1-Ubuntu SMP Wed Mar 16
11:54:08 UTC 2022 x86_64
Control connection MSS 1448
Time: Tue, 22 Mar 2022 19:38:53 GMT
Connecting to host 10.21.120.181, port 5201
Cookie: 3crb2g5fkqv6atlhbe7z6kr4r5kcgjj2tfeb
TCP MSS: 1448 (default)
[ 33] local 10.21.120.128 port 35336 connected to 10.21.120.181 port 5201
Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0
seconds, 10 second test, tos 0
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 33] 0.00-1.00 sec 256 KBytes 2.10 Mbits/sec 0 0.00 Bytes
[ 33] 1.00-2.01 sec 0.00 Bytes 0.00 bits/sec 0 0.00 Bytes
[ 33] 2.01-3.00 sec 0.00 Bytes 0.00 bits/sec 0 0.00 Bytes
[ 33] 3.00-4.01 sec 0.00 Bytes 0.00 bits/sec 0 0.00 Bytes
[ 33] 4.01-5.00 sec 0.00 Bytes 0.00 bits/sec 0 0.00 Bytes
Server side output:
iperf3 -4 -s -A 1 -V
iperf 3.7
Linux ip-10-21-120-83 5.13.0-1019-aws #21~20.04.1-Ubuntu SMP Wed Mar 16
11:54:08 UTC 2022 x86_64
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Time: Tue, 22 Mar 2022 19:38:53 GMT
Accepted connection from 10.21.120.128, port 2061
Cookie: 3crb2g5fkqv6atlhbe7z6kr4r5kcgjj2tfeb
TCP MSS: 0 (default)
[ 34] local 10.21.120.181 port 5201 connected to 10.21.120.128 port 35336
Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0
seconds, 10 second test, tos 0
[ ID] Interval Transfer Bitrate
[ 34] 0.00-1.00 sec 0.00 Bytes 0.00 bits/sec
[ 34] 1.00-2.00 sec 0.00 Bytes 0.00 bits/sec
[ 34] 2.00-3.01 sec 0.00 Bytes 0.00 bits/sec
[ 34] 3.01-4.01 sec 0.00 Bytes 0.00 bits/sec
Please let me know if I’m configuring something wrong.
Thanks
Shankar Raju
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