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# mark set ip saddr map { 10.2.3.2 : 0x0000002a, 10.2.3.1 : 0x00000017}
__map%d test-netdev b
__map%d test-netdev 0
	element 0a020302 : 0000002a	element 0a020301 : 00000017
netdev test-netdev ingress
  [ meta load protocol => reg 1 ]
  [ cmp eq reg 1 0x0800 ]
  [ payload load 4b @ network header + 12 => reg 1 ]
  [ lookup reg 1 set __map%d dreg 1 ]
  [ meta set mark with reg 1 ]

# mark set ip hdrlength map { 5 : 0x00000017, 4 : 0x00000001}
__map%d test-netdev b
__map%d test-netdev 0
	element 05 : 00000017	element 04 : 00000001
netdev test-netdev ingress
  [ meta load protocol => reg 1 ]
  [ cmp eq reg 1 0x0800 ]
  [ payload load 1b @ network header + 0 => reg 1 ]
  [ bitwise reg 1 = ( reg 1 & 0x0f ) ^ 0x00 ]
  [ lookup reg 1 set __map%d dreg 1 ]
  [ meta set mark with reg 1 ]