Hi Natasha, I can use this, but I don't know the host ids. When I try to use 0 and 1, I just get empty list. How are these host ids related to the output produced by dpctl?
Is there a simple way to dump the complete topology into a data structure? Thanks, Pradeep > -----Original Message----- > From: Natasha Gude [mailto:[email protected]] > Sent: Wednesday, October 14, 2009 6:22 PM > To: Pradeep Padala > Cc: Martin Casado; [email protected] > Subject: Re: [nox-dev] make check fails "Import by filename is not > supported" > > Hi Pradeep, > > pytopology has a method get_outlinks thats takes a source datapathid > and destination datapathid, and returns a list of all of the port > pairs that are connected. This is defined in pytopology.i > > For example: > > if datapath 1's ports 5 and 6 are connected to datapath 2's ports 3 > and 4 respectively, you would have the following. > > from nox.lib.netinet.netinet import create_datapathid_from_host > > dp1 = create_datapathid_from_host(1) > dp2 = create_datapathid_from_host(2) > ports = pytop.get_outlinks(dp1, dp2) > > where ports would be a list of PyLinkPorts of length 2, where > PyLinkPorts is described in that pytopology.i file. Particularly it > would be the equivalent of [ (5, 3), (6, 4) ] , however it's actually > a SWIG-ed out list, which needs to be iterated through using begin(), > incr(), and end(). > > Hope that helps, > Natasha > > On Oct 14, 2009, at 5:56 PM, Pradeep Padala wrote: > > > That works for me. I also looked at miscws/noxinfows.py, which seems > > to > > do some of the things I wanted. > > > > I am trying to modify noxinfows.py to return topology. I got a handle > > for pytopology with > > > > self.pytop = self.resolve(pytopology) > > > > Later, when the GET request comes, I am calling the function I wrote > > below > > > > def _get_nox_topology(self, request, arg): > > try: > > return simplejson.dumps(self.pytop.XXXXXXXXXXXXXXXXX) > > except Exception, e: > > return self.err(Failure(), request, "_get_topology", > > "Could not retrieve topology") > > > > Now, I don't know how to access the pytopology functions (XXXXXXXXXXXX > > part). For example, the get_outlinks() function takes two arguments, > > but > > in the C++ file, I didn't find any comments on what to pass here. > > > > In the manual, there are just a few notes about the topology module, > > grepping through the whole source tree, I didn't find any examples of > > using pytopology (may be I am missing something). > > > > Any help would be great. > > > > Thanks, > > Pradeep _______________________________________________ nox-dev mailing list [email protected] http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
