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| sripriya | gongysh: ping | 02:47 |
|---|---|---|
| sripriya | gongysh: sridhar_ram left a minor comment on https://review.openstack.org/#/c/255197/, if you could do a quick respin, the patchset can be merged to unblock jenkins gate | 02:49 |
| gongysh | sripriya, ok | 02:52 |
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| openstackgerrit | gongysh proposed openstack/python-tackerclient: Remove service instance related stuff and fix unittests https://review.openstack.org/255197 | 09:00 |
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| openstackgerrit | Shu Muto proposed openstack/python-tackerclient: Drop py33 support https://review.openstack.org/257756 | 09:20 |
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| openstackgerrit | Martin Oemke proposed openstack/tacker: Fix E307 errors in tacker code https://review.openstack.org/257792 | 10:00 |
| openstackgerrit | Martin Oemke proposed openstack/tacker: Fix H307 errors in tacker code https://review.openstack.org/257792 | 10:00 |
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| openstackgerrit | gongysh proposed openstack/tacker-specs: Enhanced VNF placements blue print https://review.openstack.org/257847 | 11:42 |
| openstackgerrit | gongysh proposed openstack/tacker-specs: Enhanced VNF placements blue print https://review.openstack.org/257847 | 11:45 |
| openstackgerrit | gongysh proposed openstack/tacker-specs: Enhanced VNF placements blue print https://review.openstack.org/257847 | 11:48 |
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| openstackgerrit | bharaththiruveedula proposed openstack/tacker: Prevent update of attrs when new_device_dict is None https://review.openstack.org/257360 | 12:27 |
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| openstackgerrit | Merged openstack/python-tackerclient: Remove service instance related stuff and fix unittests https://review.openstack.org/255197 | 17:30 |
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| openstackgerrit | Merged openstack/tacker: Fix H307 errors in tacker code https://review.openstack.org/257792 | 17:40 |
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| sridhar_ram | trozet: ping | 18:53 |
| trozet | sridhar_ram: pong | 18:53 |
| sridhar_ram | trozet: just trying to see if we can wrap up tacker-sfc spec... | 18:54 |
| sridhar_ram | trozet: .. any major sticking points at this time ? | 18:55 |
| trozet | sridhar_ram: no i need to go through the latest comments | 18:57 |
| sridhar_ram | trozet: okay, I'd like to see if we can land this by end of this week.. and move on the code review | 18:57 |
| sridhar_ram | trozet: from my side, the only outstanding question is whether different {chain:classifier} can be applied on the same set of instantiated VNFs | 18:58 |
| trozet | sridhar_ram: thats kind of 2 different subjects | 18:59 |
| trozet | sridhar_ram: 1) can vnfs be part of multiple chains, 2) can multiple classifiers be associated to a chain | 19:00 |
| trozet | i think the answers to both of those is yes | 19:00 |
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| sridhar_ram | trozet: I like the answer :) | 19:04 |
| s3wong | trozet: I think we also talked about that in networking-sfc | 19:04 |
| s3wong | trozet: the only major problem is that we have to (a) ensure that on a port within a chain, even with two classifiers, the two classifiers don't match the same traffic | 19:04 |
| sridhar_ram | trozet: it will be good to clarify this in the spec.. | 19:05 |
| s3wong | and (b) if a VNF is associated with two different chains, that it would either be using two ports denoting two chains, or have different classifiers associated with the two different chains | 19:05 |
| s3wong | trozet: we talked about doing that in the orchestration layer (on OpenStack API level), but it is very difficult to implement :-) | 19:06 |
| trozet | s3wong: yeah agree with (a), except the most specific match criteria should apply in overlapping case, but exact same criteria should not be allowed | 19:06 |
| s3wong | trozet: hmm... does ODL SFC support this? | 19:07 |
| trozet | s3wong: for b, i wouldnt get so hung up on the idea of *ports* | 19:07 |
| s3wong | trozet: that is, the classifier is ordered by how specific the specification is? | 19:07 |
| trozet | s3wong: yeah thats how openflow works with matches | 19:07 |
| s3wong | trozet: we in networking-sfc have to, as we are operating on PORT chain :-) | 19:08 |
| trozet | s3wong: yeah :) | 19:08 |
| sridhar_ram | s3wong: perhaps tacker's networking-sfc driver can mediate some of these overlaps and error out exact matches ? | 19:09 |
| trozet | i think for b) you really just worry that you dont define the exact same chain twice | 19:09 |
| s3wong | trozet: really? In OVS, AFAIK, there is priority associated with flow entries --- they may do the best match due to hashing, I guess? | 19:09 |
| trozet | s3wong: yes htere is priority, but when 2 flows have overlapping matches at hte same priority, the more specific one is chosen | 19:10 |
| s3wong | trozet: yeah --- in essence... but more specifically, any element in chain A and B which happens to have same classifier should not be overlapped | 19:10 |
| s3wong | sridhar_ram: that would be one optimization | 19:11 |
| s3wong | sridhar_ram: back in GBP days, we had the same discussion, and we punted that to users | 19:11 |
| s3wong | sridhar_ram: "user can never be so stupid" :-) | 19:12 |
| trozet | LOL | 19:14 |
| trozet | s3wong: yeah the same classifier cannot be mapped to chains | 19:15 |
| trozet | to 2 chains | 19:15 |
| s3wong | trozet: we have the same restriction also in networking-sfc now | 19:15 |
| u_kozat | s3wong: trozet: sridhar_ram: Isn't it simpler to just preserve the following invariant "one flow cannot belong to two chains" | 19:17 |
| trozet | u_kozat: yeah that works too | 19:18 |
| s3wong | u_kozat: that way we closely associate flow (classifier) with the chain | 19:19 |
| u_kozat | trozet: though there can be an exception if the same flow goes onto different chains in opposite directions | 19:20 |
| s3wong | sorry, guys. Need to step out for now | 19:21 |
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| sridhar_ram | s3wong: trozet: ulas_kozat: totally agree, we don't need to over think and rat hole on these corner cases...! | 19:44 |
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| openstackgerrit | Merged openstack/python-tackerclient: Updated from global requirements https://review.openstack.org/258071 | 22:19 |
| openstackgerrit | Merged openstack/tacker: Updated from global requirements https://review.openstack.org/258075 | 22:20 |
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