> This is the code snippet from DPDK 19.11 i40evf PMD on setting mtu > which would fail if port/device is already started. Does vppctl set > interface mtu command stops, sets mtu and then starts the device or is > this NIC specific? What is the approach or advice dealing with NIC > specific limitations or quirk?
VPP will not put the interface down when setting MTU. Looks like it is a limitation of this specific driver and interface. I think the best should be to deal with it on the agent side, ie you'll have to do the down/set mtu/up. Best ben
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