Hello, I want to know that why bridges are integrated. So,
I saw that GRE tunnels also established on br-int.
I dumped flowtables on br-int like bellow. (It's summerized )
________________________________
table=0, n_packets=29, n_bytes=2938, send_flow_rem 
in_port=3,dl_src=fa:16:3e:9e:dc:5f actions=set_field:0x3->tun_id,goto_table:10
table=0, n_packets=22, n_bytes=2308, send_flow_rem 
in_port=4,dl_src=fa:16:3e:41:24:1d actions=set_field:0x3->tun_id,goto_table:10
table=0, n_packets=70, n_bytes=8286, send_flow_rem tun_id=0x3,in_port=2 
actions=goto_table:20
table=0, n_packets=0, n_bytes=0, send_flow_rem priority=8192,in_port=3 
actions=drop table=0, n_packets=0, n_bytes=0, send_flow_rem 
priority=8192,in_port=4 actions=drop
table=0, n_packets=415, n_bytes=37765, send_flow_rem dl_type=0x88cc 
actions=CONTROLLER:56
table=10, n_packets=0, n_bytes=0, send_flow_rem priority=8192,tun_id=0x3 
actions=goto_table:20
table=10, n_packets=12, n_bytes=1860, send_flow_rem 
priority=16384,tun_id=0x3,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00 
actions=output:2,goto_table:20
table=10, n_packets=24, n_bytes=2084, send_flow_rem 
tun_id=0x3,dl_dst=fa:16:3e:4c:a5:a9 actions=output:2,goto_table:20
table=10, n_packets=15, n_bytes=1302, send_flow_rem 
tun_id=0x3,dl_dst=fa:16:3e:e8:f6:86 actions=output:2,goto_table:20
table=20, n_packets=39, n_bytes=3386, send_flow_rem priority=8192,tun_id=0x3 
actions=drop
table=20, n_packets=21, n_bytes=2956, send_flow_rem 
priority=16384,tun_id=0x3,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00 
actions=output:4,output:3
table=20, n_packets=18, n_bytes=2102, send_flow_rem 
tun_id=0x3,dl_dst=fa:16:3e:41:24:1d actions=output:4
table=20, n_packets=25, n_bytes=2732, send_flow_rem 
tun_id=0x3,dl_dst=fa:16:3e:9e:dc:5f actions=output:3
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Then, I assumed that by enabling OF1.3 protocol on OVS, they can use 
pipe-lining method by numbering Flowtable.
But, I could not know that what is the advantage of integration of both bridges
There are any performance improvement?
and second question is that packets which are putted tunnel are already 
transmitted to other host by marked flow-table
why it is addressed by "table=20"?


Regards
Taeheum Na
****************************************************
M.S. candidate of Networked Computing Systems Lab.
School of Information and Communications
GIST (Gwangju Inst. of Sci. and Tech.)
E-mail: t...@nm.gist.ac.kr<mailto:t...@nm.gist.ac.kr>
Phone: +82-10-2238-9424
Office: +82-62-715-2273

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