On Dec 23, 2014, at 5:39 PM, Ashok Chippa <[email protected]> wrote:
>
> Hello,
>
> I used the set-controller command after installing 4 or 5 flows. After the
> command, the flows simply disappeared!!! Please see below:
>
> root@ashok-vb:~# ovs-ofctl dump-flows br-int
> NXST_FLOW reply (xid=0x4):
> cookie=0x0, duration=113926.488s, table=0, n_packets=45, n_bytes=4410,
> idle_age=30519, hard_age=16, priority=9,icmp,nw_src=1.1.1.1,nw_dst=1.1.1.2
> actions=CONTROLLER:65535
> cookie=0x0, duration=113916.183s, table=0, n_packets=30, n_bytes=2940,
> idle_age=30632, hard_age=16, priority=9,icmp,nw_src=1.1.1.2,nw_dst=1.1.1.1
> actions=CONTROLLER:65535
> cookie=0x0, duration=114127.663s, table=0, n_packets=102, n_bytes=5236,
> idle_age=30524, hard_age=16, priority=0 actions=CONTROLLER:65535
> cookie=0x0, duration=115138.613s, table=1, n_packets=0, n_bytes=0,
> idle_age=65534, hard_age=65534, priority=0 actions=NORMAL
> root@ashok-vb:~# ovs-vsctl set-controller br-int tcp:127.0.0.1:6789
> root@ashok-vb:~# ovs-ofctl dump-flows br-int
> NXST_FLOW reply (xid=0x4):
> root@ashok-vb:~# ovs-ofctl set-controller 127.0.0.1:6789
> ovs-ofctl: unknown command 'set-controller'; use --help for help
> root@ashok-vb:~# ovs-vsctl set-controller 127.0.0.1:6789
> ovs-vsctl: no bridge named 127.0.0.1:6789
> root@ashok-vb:~# ovs-vsctl set-controller br-int 127.0.0.1:6789
> 2014-12-24T00:39:06Z|00002|vsctl|WARN|target type "127.0.0.1:6789" is
> possibly erroneous
> root@ashok-vb:~# ovs-ofctl dump-flows br-int
> NXST_FLOW reply (xid=0x4):
> cookie=0x0, duration=18.688s, table=0, n_packets=0, n_bytes=0, idle_age=18,
> priority=0 actions=NORMAL
>
> From the above output, one can see that I did not deliberately delete any
> flows...
This is expected behavior and documented in the ovs-vswitchd.conf.db man page:
controller: set of Controllers
OpenFlow controller set. If unset, then no OpenFlow controllers
will be used.
If there are primary controllers, removing all of them clears
the flow table. If there are no primary controllers, adding one
also clears the flow table. Other changes to the set of con‐
trollers, such as adding or removing a service controller,
adding another primary controller to supplement an existing pri‐
mary controller, or removing only one of two primary con‐
trollers, have no effect on the flow table.
--Justin
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