Re: [Ryu-devel] Ryu Topology viewer question

[Satoshi K. <sat...@st...>]

Hi,

2015-07-08 4:10 GMT+09:00 Luisa Nevers <ln...@bb...>:

> Hello,
>
> I starting to use the ryu topology viewer and have some questions and
> some feedback.
>
>  1. I am running the topology viewer with 50 DPIDs.  Most of the DPIDs
> are off the screen and there is no scrolling or resize to view them. See
> image topology-viewer.jpd) attached.
>
>
>  2. If I click any of the DPIDs that are visible, I can see that the
> ryu-manager windows shows the actual command issued when clicking on the
> viewer. I have noticed that the values shown are incorrect.
>
>   For example, when I Click on the topology viewer item
> "dpid:dda6c3be56cc500", the ryu-manager window shows:
>   "...[07/Jul/2015 13:57:01] "GET /stats/flow/998229271923967200
> HTTP/1.1" 404 146 0.000518"
>
>   The DPID "998229271923967200" is not part of the list that I get from
> the ryu-manager with "curl -X GET http://localhost:8080/stats/switches"
>   what I do have is "998229271923967232".  Is this a bug?
>
>   Clicking on any of the 50 switches in the topology viewer has no
> effect?  What should I see?
>
> 3. I tried starting the topology viewer with the suggested arguments
> from (http://ryu.readthedocs.org/en/latest/gui.html along with a simple
> switch and ran into this problem:
>
>    $ ./bin/ryu-manager   --observe-links
> ryu/app/gui_topology/gui_topology.py ryu/app/simple_switch.py
> ryu/app/ofctl_rest.py ryu/app/ws_topology.py
>    loading app ryu/app/gui_topology/gui_topology.py
>    loading app ryu/app/simple_switch.py
>    loading app ryu/app/ofctl_rest.py
>    loading app ryu/app/ws_topology.py
>    loading app ryu.app.rest_topology
>    loading app ryu.app.ws_topology
>    loading app ryu.app.ofctl_rest
>    loading app ryu.controller.ofp_handler
>    instantiating app None of Switches
>    creating context switches
>    instantiating app None of DPSet
>    creating context dpset
>    creating context wsgi
>    instantiating app ryu.controller.ofp_handler of OFPHandler
>    instantiating app ryu/app/ws_topology.py of WebSocketTopology
>    instantiating app ryu/app/ofctl_rest.py of RestStatsApi
>    instantiating app ryu/app/gui_topology/gui_topology.py of GUIServerApp
>    instantiating app ryu.app.rest_topology of TopologyAPI
>    instantiating app ryu/app/simple_switch.py of SimpleSwitch
>    instantiating app ryu.app.ofctl_rest of RestStatsApi
>    Traceback (most recent call last):
>    File "./bin/ryu-manager", line 19, in <module>
>     main()
>    File "/usr/local/lib/python2.7/dist-packages/ryu/cmd/manager.py",
> line 91, in main
>     services.extend(app_mgr.instantiate_apps(**contexts))
>    File
> "/usr/local/lib/python2.7/dist-packages/ryu/base/app_manager.py", line
> 483, in instantiate_apps
>     self._instantiate(app_name, cls, *args, **kwargs)
>    File
> "/usr/local/lib/python2.7/dist-packages/ryu/base/app_manager.py", line
> 470, in _instantiate
>     register_app(app)
>    File
> "/usr/local/lib/python2.7/dist-packages/ryu/base/app_manager.py", line
> 62, in register_app
>     assert app.name not in SERVICE_BRICKS
>    AssertionError
>
>   Why can I not run this combination of applications?
>

ryu.app.ws_topology and ryu.app.ofctl_rest are dependent (needed) on
ryu.app.gui_topology.gui_topology.
Thus the applications are loaded automatically.

How about the following? It should be loaded ryu.app.ws_topology and
ryu.app.ofctl_rest.
PYTHONPATH=. ./bin/ryu-manager --observe-links
ryu/app/gui_topology/gui_topology.py ryu/app/simple_switch.py
loading app ryu/app/gui_topology/gui_topology.py
loading app ryu/app/simple_switch.py
loading app ryu.app.rest_topology
loading app ryu.app.ws_topology <- (Here)
loading app ryu.app.ofctl_rest <- (Here)
loading app ryu.controller.ofp_handler
...(snip)

Thanks,
Satoshi


>
>
> Thank you,
> Luisa Nevers
>
>
>
>
>
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