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>:

> 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>>:
>>
>>
>>     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>>>:
>>
>>
>>              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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>>
>>
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>>
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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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>>
>>
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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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>>
>>
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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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