SDN Programming for Heterogeneous Switches with Flow Table Pipelining

Table 3

Flow table pipeline and forwarding rules generated by Maple++ for Switch 2. For concreteness, MAC address 00:00:00:00:00:xx is represented as :xx in the table.

	Pri	Match	Action
Table-0	0	srcMac = (:03-:04)	reg0 = 1; goto Table-1
	0	srcMac = (:01-:02)	reg0 = 2; goto Table-2
	0	srcMac = (:05–:08)	reg0 = 2; goto Table-2
	0	Otherwise	Punt
Table-1	0	dstMac = (:01-:02)	reg1 = 1; goto Table-ACTION
	0	dstMac = :03	reg1 = 2; goto Table-ACTION
	0	dstMac = :04	reg1 = 3; goto Table-ACTION
	0	dstMac = :05	reg1 = 4; goto Table-ACTION
	0	dstMac = :06	reg1 = 5; goto Table-ACTION
	0	dstMac = (:07-:08)	reg1 = 6; goto Table-ACTION
	0	Otherwise	Punt
Table-2	0	dstMac = :03	reg2 = 1; goto Table-ACTION
	0	dstMac = :04	reg2 = 2; goto Table-ACTION
	0	Otherwise	Punt
Table-ACTION	0	reg0 == 1 && reg1 == 1	To port 3 (secure path)
	0	reg0 == 1 && reg1 == 2	To port 0
	0	reg0 == 1 && reg1 == 3	To port 1
	0	reg0 == 1 && reg1 == 4	To port 2 (shortest path)
	0	reg0 == 1 && reg1 == 5	DROP
	0	reg0 == 1 && reg1 == 6	To port 2 (shortest path)
	0	reg0 == 2 && reg2 == 1	To port 0
	0	reg0 == 2 && reg2 == 2	To port 1
	0	Otherwise	Punt