[ovs-discuss] ovs-ofctl - learn - no way to provide actions=resubmit in the learnt rule

[Farhad Sunavala]

>It's already possible to do what you want.  Have the learned flows set a
>register to a distinctive value, such as 1, and match on that register
>after resubmitting to the table that contains the learned flows. > In the next table, ^^^^^^^^^^^^^^^^^^^^^
That brings me back to my original question.How do you go to the next table inside a learned flow ?The only actions available for a learned flow are load, store and output.
Regards,Farhad.

learn(argument[,argument]...)
                     This action adds or modifies a flow in an OpenFlow table,
                     similar to ovs-ofctl --strict mod-flows.   The  arguments
                     specify the flow's match fields, actions, and other prop‐
                     erties, as follows.  At least one match criterion and one
                     action argument should ordinarily be specified.

                     idle_timeout=seconds
                     hard_timeout=seconds
                     priority=value
                     cookie=value
                     send_flow_rem
                            These  arguments  have  the same meaning as in the
                            usual ovs-ofctl flow syntax.

                     fin_idle_timeout=seconds
                     fin_hard_timeout=seconds
                            Adds a fin_timeout action with the specified argu‐
                            ments  to the new flow.  This feature was added in
                            Open vSwitch 1.5.90.

                     table=number
                            The  table  in  which  the  new  flow  should   be
                            inserted.   Specify a decimal number between 0 and
                            254.  The default, if table is unspecified, is ta‐
                            ble 1.

                     delete_learned
                            This  flag  enables  deletion of the learned flows
                            when the flow with the learn  action  is  removed.
                            Specifically, when the last learn action with this
                            flag and particular table  and  cookie  values  is
                            removed,  the  switch  deletes all of the flows in
                            the specified table with the specified cookie.

                            This flag was added in Open vSwitch 2.4.

                     field=value
                     field[start..end]=src[start..end]
                     field[start..end]
                            Adds a match criterion to the new flow.

                            The first form specifies that field must match the
                            literal  value,  e.g.  dl_type=0x0800.  All of the
                            fields and values for ovs-ofctl  flow  syntax  are
                            available with their usual meanings.

                            The  second  form specifies that field[start..end]
                            in the new flow must match  src[start..end]  taken
                            from the flow currently being processed.

                            The third form is a shorthand for the second form.
                            It specifies that  field[start..end]  in  the  new
                            flow  must  match field[start..end] taken from the
                            flow currently being processed.

                     load:value->dst[start..end]
                     load:src[start..end]->dst[start..end]
                            Adds a load action to the new flow.

                            The first form loads the literal value  into  bits
                            start  through  end, inclusive, in field dst.  Its
                            syntax is the same as the  load  action  described
                            earlier in this section.

                            The  second  form  loads  src[start..end], a value
                            from the flow currently being processed, into bits
                            start through end, inclusive, in field dst.

                     output:field[start..end]
                            Add  an  output  action to the new flow's actions,
                            that outputs  to  the  OpenFlow  port  taken  from
                            field[start..end],  which  must be an NXM field as
                            described above.







>if the register contains the value, resubmit to table 22,
>otherwise don't.

 



  
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