WARNING: did not receive ack of last datagram after 10 tries.
WARNING: did not receive ack of last datagram after 10 tries.
Often get this warning on the Client side.
Client
# iperf -c kp2a.vi -u -b 2m -p 5000
------------------------------------------------------------
Client connecting to kp2a.vi, UDP port 5000
Sending 1470 byte datagrams
UDP buffer size: 9.00 KByte (default)
------------------------------------------------------------
[ 5] local 172.17.254.20 port 2134 connected with 204.11.154.244 port 5000
[ ID] Interval Transfer Bandwidth
[ 5] 0.0-10.0 sec 2.39 MBytes 2.00 Mbits/sec
[ 5] WARNING: did not receive ack of last datagram after 10 tries.
[ 5] Sent 1702 datagrams
# iperf -v
iperf version 1.7.0 (13 Mar 2003) pthreads
Server:
iperf -s -u -p 5000
--------------------------------------------------
Server listening on UDP port 5000
Receiving 1470 byte datagrams
UDP buffer size: 64.0 KByte (default)
------------------------------------------------------------
[ 3] local 204.11.154.244 port 5000 connected with 204.11.152.181 port
63736
[ 3] 0.0-10.0 sec 2.38 MBytes 2.00 Mbits/sec 0.859 ms 4/ 1702
(0.24%)
# iperf -v
iperf version 2.0.2 (03 May 2005) pthreads
What is the meaning and cure of this warning?
TIA