A fix was released to reduce the reported MTU size from the Hyper-V host and pass it to the network stack of the guest virtual machine (for example, Linux). New code has also been submitted to the Linux community for driver support of this fix. The community reviewed the code, and the code is checked in to the mainline branch. Advanced users can reference the source-code-level change in the Linux kernel here
, incorporate the source-code-level fix into their Linux kernel, and rebuild the Linux kernel. Other users will have to wait for specific Linux distributions to incorporate this change.