AnsweredAssumed Answered

IMX6Q Enet Cannot Reach 1000M

Question asked by javen lee on Feb 4, 2016
Latest reply on Feb 5, 2016 by Gary Bisson

Can anyone help me? in my MX6Q custom board based on MX6QSD(imx_3.0.35_4.1.0), our 1GB RGMII ethernet can only work at speed 495Mbits/sec,

is this normal ? Which configuration will affect the speed?

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iperf -c 192.168.122.125 -u -b 800M -t 10 -l 1000

------------------------------------------------------------

Client connecting to 192.168.122.125, UDP port 5001

Sending 1000 byte datagrams

UDP buffer size:  208 KByte (default)

------------------------------------------------------------

[  3] local 192.168.122.6 port 45130 connected with 192.168.122.125 port 5001

[ ID] Interval       Transfer     Bandwidth

[  3]  0.0-10.0 sec   590 MBytes   495 Mbits/sec

[  3] Sent 618437 datagrams

[  3] WARNING: did not receive ack of last datagram after 10 tries.

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