https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198406

            Bug ID: 198406
           Summary: More than 4 esxi vmxnet3 interfaces causes vlans
                    attached to vmxnet interfaces to stop working
           Product: Base System
           Version: 10.1-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: [email protected]
          Reporter: [email protected]

environment:
- vmware esxi 5.5.0 build 1892794
- freebsd 10.1-RELEASE amd64 VMs with vmxnet3 virtual ethernet interfaces
- vlans defined on vmx1 to vmx3

If a freebsd VM has 4 or fewer vmxnet3 interfaces, all vlans attached to any of
the vmx interfaces will work fine, as expected.

If the freebsd VM has 5 more vmxnet3 interfaces, all vlans to all of the vmx
interfaces will stop working.  tcpdump shows that no traffic is received, and
that any traffic transmitted is not received by the destination host.  If the
VM is shut down and the number of vmxnet3 interfaces is reduced to 4 or fewer,
all the vlan interfaces start working again.

This is repeatable.

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