Why starting VM which is having NIC with port mirroring enabled is failing with error "Cannot find device"

Issue

• When starting the VM, it fails with the error Cannot find device "verylongnetwork"\n', ['/sbin/tc', 'qdisc', 'add', 'dev', 'verylongnetworkname', 'ingress']).
• The vdsm log is showing error below.

2019-07-16 16:21:17,460+0530 ERROR (vm/b532b3ee) [virt.vm] (vmId='b532b3ee-c5f5-45e5-a1b9-136a7804b04b') The vm start process failed (vm:933)
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 867, in _startUnderlyingVm
    self._run()
  File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2891, in _run
    self._domDependentInit()
  File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2466, in _domDependentInit
    self._vmDependentInit()
  File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2487, in _vmDependentInit
    supervdsm.getProxy().setPortMirroring(network, nic.name)
  File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 56, in __call__
    return callMethod()
  File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 54, in <lambda>
    **kwargs)
  File "<string>", line 2, in setPortMirroring
  File "/usr/lib64/python2.7/multiprocessing/managers.py", line 773, in _callmethod
    raise convert_to_error(kind, result)
TrafficControlException: (1, 'Cannot find device "verylongnetwork"\n', ['/sbin/tc', 'qdisc', 'add', 'dev', 'verylongnetworkname', 'ingress'])