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default flow entries in Helium vs Lithium

Hi Experts, Please tell me for what purpose there is difference in flow entries (note: differences highlighted) in Helium and Lithium as below.

My OVS switch configuration in Both Helium and Lithuim (Used Mininet to create this configuration) sw1 | | SW2 SW3 | | | | h1 h2 h3 h4

- LITHIUM (SR1) DEFAULT FLOW ENTRIES WHEN OVS SWITCHES GET CONNECTED TO CONTROLLER

sudo ovs-ofctl dump-flows s1 -O Openflow13 (SWITCH1)

OFPSTFLOW reply (OF1.3) (xid=0x2): cookie=0x2b00000000000047, duration=6.931s, table=0, npackets=40, nbytes=7342, priority=0 actions=drop cookie=0x2b00000000000047, duration=0.957s, table=0, npackets=1, nbytes=315, priority=2,inport=1 actions=output:2 cookie=0x2b00000000000046, duration=0.957s, table=0, npackets=1, nbytes=315, priority=2,inport=2 actions=output:1 cookie=0x2b00000000000047, duration=6.926s, table=0, npackets=4, nbytes=340, priority=100,dltype=0x88cc actions=CONTROLLER:65535

sudo ovs-ofctl dump-flows s2 -O Openflow13 (SWITCH2)

OFPSTFLOW reply (OF1.3) (xid=0x2): cookie=0x2b00000000000046, duration=11.053s, table=0, npackets=31, nbytes=4569, priority=0 actions=drop cookie=0x2b00000000000041, duration=5.076s, table=0, npackets=10, nbytes=1808, priority=2,inport=3 actions=output:2,output:1 cookie=0x2b00000000000042, duration=5.076s, table=0, npackets=1, nbytes=70, priority=2,inport=1 actions=output:2,output:3,CONTROLLER:65535 cookie=0x2b00000000000040, duration=5.076s, table=0, npackets=1, nbytes=70, priority=2,inport=2 actions=output:3,output:1,CONTROLLER:65535 cookie=0x2b00000000000045, duration=11.058s, table=0, npackets=3, nbytes=255, priority=100,dl_type=0x88cc actions=CONTROLLER:65535

sudo ovs-ofctl dump-flows s3 -O Openflow13 (SWITCH3)

OFPSTFLOW reply (OF1.3) (xid=0x2): cookie=0x2b00000000000043, duration=13.958s, table=0, npackets=33, nbytes=4962, priority=0 actions=drop cookie=0x2b00000000000045, duration=7.970s, table=0, npackets=9, nbytes=1493, priority=2,inport=3 actions=output:2,output:1 cookie=0x2b00000000000044, duration=7.970s, table=0, npackets=1, nbytes=70, priority=2,inport=1 actions=output:2,output:3,CONTROLLER:65535 cookie=0x2b00000000000043, duration=7.970s, table=0, npackets=1, nbytes=70, priority=2,inport=2 actions=output:1,output:3,CONTROLLER:65535 cookie=0x2b00000000000043, duration=13.970s, table=0, npackets=3, nbytes=255, priority=100,dl_type=0x88cc actions=CONTROLLER:65535

- HELIUM (SR3) DEFAULT FLOW ENTRIES WHEN OVS SWITCHES GET CONNECTED TO CONTROLLER

sudo ovs-ofctl dump-flows s1 -O Openflow13 (SWITCH1)

OFPSTFLOW reply (OF1.3) (xid=0x2): cookie=0x2b00000000000047, duration=6.931s, table=0, npackets=40, nbytes=7342, priority=0 actions=drop cookie=0x2b00000000000047, duration=0.957s, table=0, npackets=1, nbytes=315, priority=2,inport=1 actions=output:2,CONTROLLER:65535

cookie=0x2b00000000000046, duration=0.957s, table=0, npackets=1, nbytes=315, priority=2,inport=2 actions=output:1,CONTROLLER:65535

cookie=0x2b00000000000047, duration=6.926s, table=0, npackets=4, nbytes=340, priority=100,dltype=0x88cc actions=CONTROLLER:65535

sudo ovs-ofctl dump-flows s2 -O Openflow13 (SWITCH2)

OFPSTFLOW reply (OF1.3) (xid=0x2): cookie=0x2b00000000000046, duration=11.053s, table=0, npackets=31, nbytes=4569, priority=0 actions=drop cookie=0x2b00000000000041, duration=5.076s, table=0, npackets=10, nbytes=1808, priority=2,inport=3 actions=output:2,output:1,CONTROLLER:65535

cookie=0x2b00000000000042, duration=5.076s, table=0, npackets=1, nbytes=70, priority=2,inport=1 actions=output:2,output:3,CONTROLLER:65535 cookie=0x2b00000000000040, duration=5.076s, table=0, npackets=1, nbytes=70, priority=2,inport=2 actions=output:3,output:1,CONTROLLER:65535 cookie=0x2b00000000000045, duration=11.058s, table=0, npackets=3, nbytes=255, priority=100,dl_type=0x88cc actions=CONTROLLER:65535

sudo ovs-ofctl dump-flows s3 -O Openflow13 (SWITCH3)

OFPSTFLOW reply (OF1.3) (xid=0x2): cookie=0x2b00000000000043, duration=13.958s, table=0, npackets=33, nbytes=4962, priority=0 actions=drop cookie=0x2b00000000000045, duration=7.970s, table=0, npackets=9, nbytes=1493, priority=2,inport=3 actions=output:2,output:1,CONTROLLER:65535

cookie=0x2b00000000000044, duration=7.970s, table=0, npackets=1, nbytes=70, priority=2,inport=1 actions=output:2,output:3,CONTROLLER:65535 cookie=0x2b00000000000043, duration=7.970s, table=0, npackets=1, nbytes=70, priority=2,inport=2 actions=output:1,output:3,CONTROLLER:65535 cookie=0x2b00000000000043, duration=13.970s, table=0, npackets=3, nbytes=255, priority=100,dl_type=0x88cc actions=CONTROLLER:65535

Questions:

  1. Please tell me the difference in flow entries (Helium Vs lithium)
  2. When i ping from H1 to H4 additional flow entries are getting added in Helium but not happening in Lithium, even though the "ping is successful", please clarify this also
  3. If i modify the flow entries in OVS switch (with lithium)as present in OVS switch (with Helium), additional flow entries are getting added in OVS switches (with lithium) also.

Thanks in Advance!!!!