iperf3 test cause "panic: message too long"

[sbilly]

I'v connected to veth NICs by using 'https://github.com/newtools/zsocket/blob/master/examples/2simplebridge.go'

And iperf3 test cause "panic: message too long".

66 66
67 67
66 66
70 70
66 66
123 123
66 66
67 67
74 74
74 74
66 66
103 103
66 66
66 66
68 68
66 66
7306 7306
panic: message too long

goroutine 19 [running]:
main.main.func1(0xc00009e740, 0xc01c8a1c8a)
        /root/tmp/xxx/main.go:28 +0x1dd
github.com/newtools/zsocket.(*ZSocket).Listen(0xc0000c6000, 0xc000082480, 0xc000070300, 0xc0000c6070)
        /root/.go/src/github.com/newtools/zsocket/zsocket.go:307 +0x1d3
created by main.main
        /root/tmp/xxx/main.go:18 +0x129

[sbilly]

It occurs when zsocket send or recived a packet bigger than MTU.

https://en.wikipedia.org/wiki/TCP_segmentation_offloading