This object indicates the corresponding flags for this flow:
'copy' - indicates that traffic is copied to CPU and
forwarded in hardware.
'punt' - indicates that traffic is punted to CPU and
forwarded in software.
'ineligible' - indicates that this flow is ineligible for
hardware installation.
'hwFail' - indicates that this flow failed to install
in hardware.
'bidir' - indicates that this flow is a Bidir flow.