There's no super-shorthand for this. Try: fms(load=nx.NXM_NX_REG5, src=nx.nx_learn_src_immediate.u32(7))
I had to look this up, and in the process realized there seemed to be a small bug... you should pull the latest version from the dart branch. If you don't, just put a "None" argument before the real argument to u32(). -- Murphy On Dec 8, 2013, at 7:01 PM, Jayanth Silesh <jayanthsileshs.for...@gmail.com> wrote: > Hi Murphy, > > when I insert this statement, > learn.spec.append(fms( field=nx.NXM_NX_REG5, load=7 )) > > The following error occurs. Is the Syntax ‘load’, I tried,match and output > too. > > > ERROR:core:Exception while handling OpenFlowNexus!ConnectionUp... > Traceback (most recent call last): > File "/home/mininet/pox2/pox/lib/revent/revent.py", line 231, in > raiseEventNoErrors > return self.raiseEvent(event, *args, **kw) > File "/home/mininet/pox2/pox/lib/revent/revent.py", line 278, in raiseEvent > rv = event._invoke(handler, *args, **kw) > File "/home/mininet/pox2/pox/lib/revent/revent.py", line 156, in _invoke > return handler(self, *args, **kw) > File "/home/mininet/pox2/pox/misc/cust2.py", line 59, in > _handle_ConnectionUp > learn.spec.append(fms( field=nx.NXM_NX_REG5, load=7 )) > File "/home/mininet/pox2/pox/openflow/nicira.py", line 1462, in new > if dst is not None: dst_inst = dst(*dstarg,**dstkw) > File "/home/mininet/pox2/pox/openflow/nicira.py", line 1306, in __init__ > data = field().pack(omittable = False, header_only = True) > TypeError: 'int' object is not callable > Thanks, > Jayanth > Graduate Student > USC > > > > On December 8, 2013 at 6:47:22 PM, Murphy McCauley > (murphy.mccau...@gmail.com) wrote: > >> On Dec 8, 2013, at 6:18 PM, Jayanth Silesh <jayanthsileshs.for...@gmail.com> >> wrote: >> >> > Hi Murphy, >> > >> > Question1: >> > >> > The problem is that I need the resubmit command in the flow_entry. >> > Say that there is already an entry in table 2 as >> > in_port=7,….,action= resubmit(,3). >> > >> > Is there a way that from table3, I can use the LEARN msg to ‘append’ an >> > action in the table 2 so that it becomes, >> > in_port=7,…..,action=( load(reg_5=7) ,resubmit(,3)) >> > >> > Will the learn action, add an entry or can it modify the existing entry in >> > the table? >> >> No. However, consider making the entry in table 2: >> in_port==7 : resubmit(table=11), resubmit(table=3) >> >> By default, have table 11 (a table chosen at random for the example) empty. >> You can use a learn action to learn an entry into it like... >> in_port==7 : load(field=reg5, value=7) >> >> .. and the result should be what you wanted. >> >> >> In the above case, the new table entry uses in_port to match against, but >> you could use a metafield instead if your match conditions are complicated. >> Picking the values 14 and 42 at random, in table 2 you'd have: >> in_port==7 : load(field=reg14, value=42), resubmit(table=11), >> resubmit(table=3) >> >> In table 11: >> reg14==42 : load(field=reg5, value=7) >> >> > Question2: >> > Is there a resubmit action on the Nicira extensions for NOX? >> >> No. There couldn't be. The problem isn't that POX doesn't support this. Open >> vSwitch itself doesn't support this. It's not part of the learn action by >> definition. >> >> (On top of that, no noxrepo version of NOX supports the learn action at >> all.) >> >> > Question3: >> > >> > How do load the register with some value, it’s throwing errors on this. Is >> > the naming convention for reg wrong? >> > >> > learn.spec.append(fms( field=nx.re51, load=7 )) >> >> As suggested in the last entry of the FAQ, you should post error messages. >> >> The registers are named like NXM_NX_REGx, and should also be accessible as >> NXM_NX_REG[x]. I think "x" is between 0 and 15 on most or all switches. >> >> >> -- Murphy >> >> > Thanks, >> > Jayanth >> > Graduate Student >> > USC >> > >> > >> > >> > On December 8, 2013 at 3:48:51 PM, Murphy McCauley >> > (murphy.mccau...@gmail.com) wrote: >> > >> >> meta_register_1 >>
