VlanMux: optimize tag pop/push #1392
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Leverage packet.shift{left,right} to minimize the amount of data that
needs to be copied when inserting/removing a tag from an Ethernet
header. In the ideal case, only the src/dst MAC addresses need to
actually be moved.
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Leverage packet.shift{left,right} to minimize the amount of data that
needs to be copied when inserting/removing a tag from an Ethernet
header. In the ideal case, only the src/dst MAC addresses need to
actually be moved.