test_OysterBayRack uses local iperf, fix lengths

BUG=chromium:234294
TEST=run_all_tests.py

Change-Id: I821718dd83c87e50d538ec1e4783af4d96c330e2
Reviewed-on: https://chromium-review.googlesource.com/177557
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
Commit-Queue: Byron Kubert <byronk@chromium.org>
Tested-by: Byron Kubert <byronk@chromium.org>
2 files changed