Not generating flowmods for OpenFlow 1.3

[basus]

I'm trying to use ocaml-openflow with some hardware switches running openvswitch and OpenFlow 1.3. The switches connect properly but it seems like the SDN.setup_flow_table function does not correctly send out flow mods. I've looked at the links with Wireshark and I can see regular Echo Request and Reply messages, but no flow mods. It also seems like the setup_flow_table function does not return.

[mcanini]

Hmmm... what version of ocaml-openflow are you using?

Do you invoke SDN.setup_flow_table directly?

[reitblatt]

Yeah. He's also using lwt.

[mcanini]

@basus can you try using the latest from master? There were a couple of issues with setup_flow_table that got fixed after we switched to async.

[reitblatt]

But those would only have gotten fixed in async, right?

[basus]

I'm using the current HEAD of the master branch. I am generating my own flow tables. I'm trying to narrow down the problem now.

[mcanini]

@basus: how does your flow table look like?

perhaps we can move the discussion to IRC?

[basus]

Having trouble getting to IRC and my battery is dying. I've narrowed down the problem to the SDN_OpenFlow0x04.ml file. The Common module has a from_action function that seems to not return when given Enqueue actions are given.

[jnfoster]

Hi Basu,

Some questions:

• The MMFS controller was working... why are we changing things now?
• I was going to ask why we need 1.3, but I see that's because Robert
  updated the firmware.
• Is your controller using Lwt or Async?

-N

On Tue, Jan 21, 2014 at 4:08 PM, Shrutarshi Basu
notifications@github.comwrote:

Having trouble getting to IRC and my battery is dying. I've narrowed down
the problem to the SDN_OpenFlow0x04.ml file. The Common module has a
from_action function that seems to not return when given Enqueue actions.

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/80#issuecomment-32963604
.

[seliopou]

From the comments, this seems like it may be related to #32 and #52.

@basus, is this still an issue for you?

[basus]

Yes, the core issue is that the 0x04 code does not seem to have support for dealing with queues at all.

[jnfoster]

This is just one new action though, right? If so, should be easy to add.

-N

On Mon, Feb 3, 2014 at 1:14 PM, Shrutarshi Basu notifications@github.comwrote:

Yes, the core issue is that the 0x04 code does not seem to have support
for dealing with queues at all.

Reply to this email directly or view it on GitHubhttps://github.com//issues/80#issuecomment-33982632
.