using OF 1.0 with OpenDaylight, ubuntu 14.04
packet_in worked correctly (for reactive forwarding) in 2.1.0 but not in 2.3.0 (or 2.3.1). Were there changes made in 2.3.0 which would prevent the packet_in (for reason=no_match) from being sent to controller? thx, Rod On 2014-12-10 14:59, Ben Pfaff wrote: > On Wed, Dec 10, 2014 at 02:22:42PM -0600, Rod N. Melton wrote: > >> when using ovs 2.1.0 with mininet 2.1.0+ and i could count on >> packet_in/packet_out to make ping work when i had not put flow rules in the >> switch. 1. i noticed that with 2.1.0 there were these default rules in table >> 254 sudo ovs-appctl bridge/dump-flows s1 table_id=254, duration=344s, >> n_packets=0, n_bytes=0, priority=0,reg0=0x3,actions=drop table_id=254, >> duration=344s, n_packets=187, n_bytes=34082, >> priority=0,reg0=0x1,actions=controller(reason=no_match) table_id=254, >> duration=344s, N_PACKETS=0, n_bytes=0, priority=0,reg0=0x2,actions=drop and >> the 'n_packet' count stays at 0. 2. when i move to ovs 2.3.0 (or 2.3.1) >> (with same mininet) and build according to INSTALL.Debian file: h1 ping -c 1 >> h2 does not work. the switch(es) does not send up packet_in messages and the >> drop rules are INCREMENTING. sudo ovs-appctl bridge/dump-flows s1 >> table_id=254, duration=796s, n_packets=0, n_bytes=0, priority=1,actions=drop >> table_id=254, duration=796s, n_packets=0, n_bytes=0, priority=0,reg0=0x3,actions=drop table_id=254, duration=796s, n_packets=3, n_bytes=250, priority=0,reg0=0x1,actions=controller(reason=no_match) table_id=254, duration=796s, N_PACKETS=398, n_bytes=72307, priority=0,reg0=0x2,actions=drop table_id=254, duration=796s, n_packets=0, n_bytes=0, priority=2,recirc_id=0,actions=resubmit(,0) I think this drop rule is eating all my reactive routing and preventing the ping from working. Can anyone explain when this doesn't work as in ovs 2.1.0? > > These rules are an implementation detail. They are a symptom of the > problem you're seeing, not the cause of it. You will have to look > further to find the cause.
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