Hi Carlos,

You mean;
- With OFPGT_ALL, group action works as expected
- But with OFPGT_SELECT, group action does not work
right?

If group and flow entries are installed as expected, it means this problem is
not on Ryu (Controller) side, but I guess it is on your switch spec. Please
confirm your switch supports OFPGT_SELECT on group table.

Thanks,
Iwase


On 2018年04月03日 02:25, Jose Carlos Ferreira de Melo Junior wrote:
Hey Iwase,

Good news  it's working although I couldn't really divide the flow.

Here's what happened.

The flow went to two ports of the switch but the flow is replicated on the port 2 and 3.

  in that case making the same bandwidth go on the port 2 and 3.


I used both *weight* variable as *0* and *ofp.OFPGT_ALL*

         queue_1 = _parser_.OFPActionSetQueue(0)
         actions_1 = [queue_1, _parser_.OFPActionOutput(3)]


         queue_2 = _parser_.OFPActionSetQueue(0)
         actions_2 = [queue_2, _parser_.OFPActionOutput(2)]

*weight_1 = 0*
*        weight_2 = 0*
         watch_port = ofproto_v1_3.OFPP_ANY
         watch_group = ofproto_v1_3.OFPQ_ALL

         req = _parser_.OFPGroupMod(datapath, ofp.OFPFC_ADD, *ofp.OFPGT_ALL*,
                 group_id, buckets)



I would like to divide the flow in a  way that in port 2 have 50% of the band and port 3 also have 50% of the band.
I changed the *weight* value to *50* and used *ofp.OFPGT_SELECT* but it didn't 
work



2018-04-01 23:09 GMT-03:00 Iwase Yusuke <iwase.yusu...@gmail.com <mailto:iwase.yusu...@gmail.com>>:

    Hi Carlos,

     > *match = _parser_.OFPMatch(ipv4_src="192.168.2.2", 
ipv4_dst="192.168.1.1")*

    This rule does not follow "7.2.3.6 Flow Match Field Prerequisite" in the
    OpenFlow Spec 1.3.5, I guess. See the OpenFlow Spec for more details.
    Then, please confirm your flow entries are installed on your switch like
    "ovs-ofctl dump-flows s1".

    Thanks,
    Iwase


    On 2018年04月02日 10:36, Jose Carlos Ferreira de Melo Junior wrote:

        Hey Iwase,

        Right now my code looks like this OFPActionGroup is in Red

        *port_1 = 3*
        *        queue_1 = _parser_.OFPActionSetQueue(0)*
        *        actions_1 = [queue_1, _parser_.OFPActionOutput(4)]*
        *
        *
        *
        *
        *        port_2 = 2*
        *        queue_2 = _parser_.OFPActionSetQueue(0)*
        *        actions_2 = [queue_2, _parser_.OFPActionOutput(2)]*
        *
        *
        *        weight_1 = 50*
        *        weight_2 = 50*
        *        watch_port = ofproto_v1_3.OFPP_ANY*
        *        watch_group = ofproto_v1_3.OFPQ_ALL*
        *
        *
        *        buckets = [*
        *                _parser_.OFPBucket(weight_1, watch_port, watch_group,
        actions_1),*
        *                _parser_.OFPBucket(weight_2, watch_port, watch_group,
        actions_2)]*
        *
        *
        *group_id = 1*
        *
        *
        *        req = _parser_.OFPGroupMod(datapath, ofp.OFPFC_ADD,
        ofp.OFPGT_SELECT,*
        *                group_id, buckets)*

        *        datapath.send_msg(req)*

        *match = _parser_.OFPMatch(ipv4_src="192.168.2.2", 
ipv4_dst="192.168.1.1")*
        *actions = [datapath.ofproto_parser.OFPActionGroup(1)]*
        *        inst = [_parser_.OFPInstructionActions(ofp.OFPIT_APPLY_ACTIONS,
        actions)]*
        *        mod = datapath.ofproto_parser.OFPFlowMod(datapath, match=match,
        cookie=0, command=ofp.OFPFC_ADD, idle_timeout=0, hard_timeout=0,
        priority=3, instructions=inst)*
        *
        *
        *        datapath.send_msg(mod)*


        i was following the code in
        http://csie.nqu.edu.tw/smallko/sdn/ryu_multipath_13.htm
        <http://csie.nqu.edu.tw/smallko/sdn/ryu_multipath_13.htm>

        is it right ?





        thanks



        2018-04-01 22:14 GMT-03:00 Iwase Yusuke <iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>:

             Hi Carlos,

             Hmmmm... have you installed any "flow" entry which contained
        OFPActionGroup?
             Also, in your code, you uses "group_id = 50" in OFPGroupMod 
message. Is
             OFPActionGroup using the same "group_id = 50"?

             Thanks,
             Iwase


             On 2018年04月02日 09:36, Jose Carlos Ferreira de Melo Junior wrote:

                 Hi Iwase,

                 Sorry for the late answer

                 well... I checked the group stats as you said and it's not
        being looked up

                 *ovs-ofctl dump-group-stats -O OpenFlow s2*
                 *OFPST_GROUP reply (OF1.3) (xid=0x2):*
*group_id=1,duration=12.837s,ref_count=0,packet_count=0,byte_count=0,bucket0:packet_count=0,byte_count=0,byte_count=0,bucket1:packet_count=0,byte_count=0*
                 *
                 *
                 I'm really lost and don't know how to fix that

                 Do you have any idea of how can I solve this problem?


                 many thanks.

                 2018-03-29 1:33 GMT-03:00 Iwase Yusuke <iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>>:

                      Hi Carlos,

                      The group entries are looked up (or specified) by
        OFPActionGroup in
                 flow
                      entries.

                      If looked up, ref_count, packet_count and byte_count 
should be
                 incremented.

                      mininet> sh ovs-ofctl dump-group-stats s1 -O OpenFlow13
                      OFPST_GROUP reply (OF1.3) (xid=0x4):
group_id=1,duration=45.105s,ref_count=1,packet_count=5,byte_count=378,bucket0:packet_count=4,byte_count=336,bucket1:packet_count=1,byte_count=42

                      Thanks,
                      Iwase


                      On 2018年03月27日 23:10, Jose Carlos Ferreira de Melo
        Junior wrote:

                          Hi Iwase,

                          The group entry is added...















                          but I don't understand how can be looked up.
                          I don't know how to do this


                          Is there any other thing that I am missing ????


                          thanks in advanced







                          2018-03-26 20:28 GMT-03:00 Iwase Yusuke
                 <iwase.yusu...@gmail.com <mailto:iwase.yusu...@gmail.com>
        <mailto:iwase.yusu...@gmail.com <mailto:iwase.yusu...@gmail.com>>
                          <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>
                          <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>>>:

                               Hi Carlos,

                                >  "*/using the group table with openflow 1.3
        with no
                 sucess/*"
                          means that I am
                               > using the group table as i said before and it
        is not
                 working,
                          means that I am
                               > using the group specification and it doens't 
work.

                               "Does not work" means
                                 - no group entry added
                                 - group entry exists, but not looked up
                                 - group entry looked up, but packets are not
        outputted
                                 or ...
                               which you mean?


                               > and about your topology: It has only 2 switches
        or 4???

                               Only 2 switches (s1 and s2), which corresponding 
to
                 "Start" and
                          "End" switches
                               on the image you attached on your previous mail.
        Also h1
                 and h2
                          represents hosts
                               which do ping.


                               Thanks,
                               Iwase

                               On 2018年03月26日 21:14, Jose Carlos Ferreira de 
Melo
                 Junior wrote:

                                   Hey Iwase,

                                      "*/using the group table with openflow 1.3
        with no
                 sucess/*"
                          means
                                   that I am using the group table as i said
        before and
                 it is not
                          working,
                                   means that I am using the group specification
        and it
                 doens't work.

                                   and about your topology: It has only 2
        switches or 4???

                                   i don't know if my code is right or if i am
        missing
                 something else.




                                   2018-03-25 21:40 GMT-03:00 Iwase Yusuke
                          <iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>
                                   <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>
                          <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>
                          <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>
                                   <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>
                          <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>>>>:


                                        Hi Carlos,

                                        For such purpose, OFPGT_SELECT is
        appropriate, I
                 guess.

                                        With the topology;

                                              +--------+  +--------+                                               |   s1   |             |  s2   |
                                        +----+        |      (port 2)---(port
        2)      |                +----+
                               | h1 |---(port 1)      |             |     (port
                 1)---| h2 |
                                        +----+        |      (port 3)---(port
        3)      |                +----+
                                              |        |             |       |                                               +--------+  +--------+


                                        I can install groups and flows entries,
        then can ping
                          between h1
                                   and h2 with the
                                        following app.


                                        $ git diff
                                        diff --git a/ryu/app/simple_switch_13.py
                          b/ryu/app/simple_switch_13.py
                                        index 06a5d0e..e1a5c3b 100644
                                        --- a/ryu/app/simple_switch_13.py
                                        +++ b/ryu/app/simple_switch_13.py
                                        @@ -48,6 +48,30 @@ class
                 SimpleSwitch13(app_manager.RyuApp):
                   ofproto.OFPCML_NO_BUFFER)]
                                                  self.add_flow(datapath, 0,
        match, actions)

                                        +        buckets = [
                                        +            parser.OFPBucket(
                                        +                50, ofproto.OFPP_ANY,
                 ofproto.OFPG_ANY,
                               + [parser.OFPActionOutput(2)]),
                                        +            parser.OFPBucket(
                                        +                50, ofproto.OFPP_ANY,
                 ofproto.OFPG_ANY,
                               + [parser.OFPActionOutput(3)]),
                                        +        ]
                                        +        mod = parser.OFPGroupMod(
                                        +            datapath, 
ofproto.OFPGC_ADD,
                          ofproto.OFPGT_SELECT, 1,
                                   buckets)
                                        +        datapath.send_msg(mod)
                                        +
                                        +        match = 
parser.OFPMatch(in_port=1)
                                        +        actions =
        [parser.OFPActionGroup(1)]  #
                 from host
                          to switch
                                        +        self.add_flow(datapath, 1,
        match, actions)
                                        +
                                        +        match = 
parser.OFPMatch(in_port=2)
                                        +        actions =
        [parser.OFPActionOutput(1)]  #
                 from
                          switch to host
                                        +        self.add_flow(datapath, 1,
        match, actions)
                                        +
                                        +        match = 
parser.OFPMatch(in_port=3)
                                        +        actions =
        [parser.OFPActionOutput(1)]  #
                 from
                          switch to host
                                        +        self.add_flow(datapath, 1,
        match, actions)
                                        +
                                              def add_flow(self, datapath, 
priority,
                 match, actions,
                                   buffer_id=None):
                                                  ofproto = datapath.ofproto
                                                  parser = 
datapath.ofproto_parser


                                        I don't know what "using the group table
        with
                 openflow 1.3
                          with no
                                   sucess"
                                        means, but please confirm your group and
        flow
                 table again.

                                        Thanks,
                                        Iwase


                                        On 2018年03月23日 21:11, Jose Carlos
        Ferreira de Melo
                          Junior wrote:

                                            Hey Iwase,


                                            Split means really divide the flow I
        dont know if
                          would be like
                                   a load
                                            balancing (I think it is)

                                            For example the image below




                                            But I dont know if this would be
        possible
                 using the
                          group table.

                                            2018-03-23 4:04 GMT-03:00 Iwase 
Yusuke
                          <iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>
                                   <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>>>
                                            <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>
                          <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>
                                   <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>
                          <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>>> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>

                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>

                          <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>

                                   <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>>>

                                            <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>
                          <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>
                                   <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com 
<mailto:iwase.yusu...@gmail.com>>
                          <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>
                 <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>>>>>>:


                                                 Hi Carlos,

                                                 What does "split flows" exactly
        mean?

                                                  > req =
        parser.OFPGroupMod(datapath,
                 ofp.OFPFC_ADD,
                                   ofp.OFPGT_SELECT,
                                         > group_id,
                 buckets)

                                                 If you specify OFPGT_SELECT,
        switch will
                 execute
                          "one"
                                   bucket in
                                            the group and
                                                 not copied like the port
        mirroring. If
                 you intend
                          to do port
                                            mirroring, you need
                                                 to specify OFPGT_ALL. For other
                 available group
                          types,
                                   please refer
                                            to the
                                                 OpenFlow spec and your switch's
                 specification.

                                                 Thanks,
                                                 Iwase


                                                 On 2018年03月21日 04:02, Jose
        Carlos
                 Ferreira de Melo
                                   Junior wrote:

                                                     Hi there,

                                                     I know this topic was 
discussed
                 before but I
                          would
                                   like just a
                                            simple
                                                     explanation about it.

                                                     Because I am using the
        group table with
                          openflow 1.3
                                   with no
                                            sucess.


                                                     My purpose is to split one
        flow in
                 two flows and
                                   forward on
                                            port 3 and 4
                                                     using the group table.

                                                     My code is as follows:


                                                     *def group_mod(self,
        datapath):*
                                                     *        global ofp,
        _parser_, dp*
                                                     *        port_1 = 4*
                                                     *        queue_1 =
                 _parser_.OFPActionSetQueue(0)*
                                                     *        actions_1 = 
[queue_1,
                                   _parser_.OFPActionOutput(port_1)]*
                                                     *
                                                     *
                                                     *
                                                     *
                                                     *        port_2 = 3*
                                                     *        queue_2 =
                 _parser_.OFPActionSetQueue(0)*
                                                     *        actions_2 = 
[queue_2,
                                   _parser_.OFPActionOutput(port_2)]*
                                                     *
                                                     *
                                                     *        weight_1 = 50*
                                                     *        weight_2 = 50*
                                                     *
                                                     *
                                                     *        watch_port =
                 ofproto_v1_3.OFPP_ANY*
                                                     *        watch_group =
                 ofproto_v1_3.OFPQ_ALL*
                                                     *
                                                     *
                                                     *        buckets = [*
                                            *  _parser_.OFPBucket(weight_1,
                          watch_port,
                                            watch_group,
                                                     actions_1),*
                                            *  _parser_.OFPBucket(weight_2,
                          watch_port,
                                            watch_group,
                                                     actions_2)]*
                                                     *
                                                     *
                                                     *        group_id = 50*
                                                     *
                                                     *
                                                     *        req =
                 _parser_.OFPGroupMod(datapath,
                                   ofp.OFPFC_ADD,
                                                     ofp.OFPGT_SELECT,*
                                                     *                group_id,
        buckets)*
                                                     *
                                                     *
                                            *   datapath.send_msg(req)*
                                                     *
                                                     *
                                                     *
                                                     *
                                                     *
                                                     *
                                                     Hope this is right.

                                                     Could anyone help me with
        this issue?




                                                     --         Best regards,
                                                     José Carlos Ferreira
                                                     Msc student in Computer 
Science
                                                     System and Network Analyst
        at PoP-PE/RNP


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                                            --         Best regards,
                                            José Carlos Ferreira
                                            Msc student in Computer Science
                                            System and Network Analyst at 
PoP-PE/RNP


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                                   --         Best regards,
                                   José Carlos Ferreira
                                   Msc student in Computer Science
                                   System and Network Analyst at PoP-PE/RNP


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                          --         Best regards,
                          José Carlos Ferreira
                          Msc student in Computer Science
                          System and Network Analyst at PoP-PE/RNP


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        <mailto:Ryu-devel@lists.sourceforge.net
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        <mailto:Ryu-devel@lists.sourceforge.net>
                 <mailto:Ryu-devel@lists.sourceforge.net
        <mailto:Ryu-devel@lists.sourceforge.net>>>
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                 --         Best regards,
                 José Carlos Ferreira
                 Msc student in Computer Science
                 System and Network Analyst at PoP-PE/RNP


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-- Best regards,
        José Carlos Ferreira
        Msc student in Computer Science
        System and Network Analyst at PoP-PE/RNP


        
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--
Best regards,
José Carlos Ferreira
Msc student in Computer Science
System and Network Analyst at PoP-PE/RNP


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