vlab: Test connectivity failed : iperf client: unable to send control message - server: error - unable to receive results: Bad file descriptor #1392
Description
https://github.com/githedgehog/fabricator/actions/runs/21457716093/job/61803310149
23:18:48 ERR Test connectivity failed ping=0 iperf=1 curl=0 took=2m4.133944292s errors="iperf server-03 -> server-01: client: unable to send control message - port may not be available, the other side may have stopped running, etc.: Broken pipe, server: error - unable to receive results: Bad file descriptor"