Hi Abhishek,
As the error indicates, FRM detected a Flow-Conflict when the
SimpleForwarding application tries to install a conflicting action for
a pre-existing flow. Ideally during a NodeConnector-down /
routing-change event, FRM / SimpleForwarding application is supposed
to remove the old and install a new based on the discovered new
shortest-path. Seems like the entry removal is failing (or) the install
is happening before the removal is done. Please open a bug @
bugs.opendaylight.org against the SimpleForwarding application.
Thanks,
-Madhu
On 10/21/13 9:58 PM, abhishek jain wrote:
Hi all,
The Toplology which I'm using is attached alongwith.
By default I'm able to ping the two PCs with proactive flows pushed
through the shortest paths i.e through PATH-1.However when I remove
Path-1,the two PCs are not able to ping each other through PATH-2.
When I am removing the wire from the eth2 interface i.e removing the
shortest path,then Opendaylight controller should push rules again and
it should choose Path2 for communication but it is not happening
automatically.
The topplogy change is detected by the opendaylight conrtoller in the
GUI but the Proactive rules pushed onto the the openflow switches
remain same.
The logs when PATH-1 is removed are as follows.....
10-21 12:29:16.944 IST [Thread-18] ERROR o.o.c.s.s.i.
SimpleForwardingImpl - Failed to install policy: 192.168.1.10/32
<http://192.168.1.10/32> (A flow with same match and priority exists
on the target node)
2013-10-21 12:29:17.063 IST [SwitchEvent Thread] WARN
o.o.c.f.i.ForwardingRulesManager - Operation Rejected: A flow with
same match and priority exists on the target node
2013-10-21 12:29:17.063 IST [SwitchEvent Thread] WARN
o.o.c.f.i.ForwardingRulesManager - A flow with same match and priority
exists on the target node: FlowEntry[flowName = [192.168.1.54/32
<http://192.168.1.54/32> on N OF|00:00:00:04:9f:02:a3:e3], groupName =
192.168.1.54/32 <http://192.168.1.54/32>, node =
OF|00:00:00:04:9f:02:a3:e3, flow = Flow[match = Match[[DL_TYPE(2048),
NW_DST(192.168.1.54)]], actions =
[OUTPUT[OF|1@OF|00:00:00:04:9f:02:a3:e3]], priority = 1, id = 0,
idleTimeout = 0, hardTimeout = 0]]
2013-10-21 12:29:17.063 IST [SwitchEvent Thread] ERROR
o.o.c.s.s.i.SimpleForwardingImpl - Failed to install policy:
192.168.1.54/32 <http://192.168.1.54/32> (A flow with same match and
priority exists on the target node)
Configuration-
PC-1----Ip=192.168.1.10
Gw=192.168.1.1
PC-1----IP=192.168.1.54
Gw=192.168.1.1
Opendaylight controller------Subnet gateway configuration=192.168.1.1,
ports=eth1,eth2(OVS-1),eth1,eth2(OVS-2),eth1,eth4(OVS-3)
Can you people help me regarding this?
Thanks
Regards..
Abhishek Jain
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