Hi
We are experiencing a problem with traffic-flow with the below
mentioned topology and scenario.
Topology :
H1 ----| |
----| S1 |---H2
We have 2 links(Port1 and Port2) connected from host H1 to switch S1 and 1
link(Port3) between S1 and H2.
Groups :
We have the following 2 groups created where group 8165 uses both the group
58912 and port 3
OFPST_GROUP_DESC reply (OF1.3) (xid=0x2):
group_id=58912,type=select,bucket=weight:0,actions=output:1,output:2
group_id=8165,type=all,bucket=actions=group:58912,output:3
Flows:
root@mininet-89:~# sudo ovs-ofctl -O Openflow13 dump-flows s1
OFPST_FLOW reply (OF1.3) (xid=0x2):
cookie=0x0, duration=7433.711s, table=0, n_packets=1149, n_bytes=48258,
arp,dl_src=02:01:02:03:04:08,dl_dst=ff:ff:ff:ff:ff:ff actions=group:8165
cookie=0x0, duration=7457.281s, table=0, n_packets=1062, n_bytes=44604,
arp,dl_src=00:00:00:00:00:22,dl_dst=ff:ff:ff:ff:ff:ff actions=group:8165
cookie=0x3000000000000000, duration=8291.778s, table=0, n_packets=560,
n_bytes=69440, priority=5,dl_dst=01:80:c2:00:00:02,dl_type=0x8809
actions=CONTROLLER:65535
We have created 2 flows manually to handle ARP request packet that would use
the group 8165 as egress ports.
Observation :
* Now when ARP request is sent from host H1 to H2, we do see that
switch S1 is receiving ARP Requests and the ARP flow is hit. However, ARP
request is not sent to the port3 as expected. In Group table, when Group ID
58912 is removed from group 8165, we see that the ARP requests are reaching H2
from H1.
* Also when ARP request is sent from host H2 to H1, it is received in
switch S1, but does not egress out
We always see that the traffic is not sent out of the ports described in the
flows, when a flow uses a Group ID that in turn uses another group ID in the
"actions" qualifier. This appears to be a bug. Can you pl. look into it.
Thanks and Regards
R. Kavitha
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