Thanks for the good meeting. Here are my notes:
Date: 2016-12-21, 17-18:30 CET
Participants: Jarno R, Ben P, Ben M-C, Jiri B, Simon H, Zoltan B, Jan S
Summary:
* Discussed making PTAP, EXT-382 and NSH available as extensions to OF
1.3.
o No big deal for the match fields and the encap/decap actions
o Potential problem could be the missing packet_type information in OF
1.3 Packet In, Packet Out and Table Features (Note: Closer inspection of OF
1.5.1 spec reveals that OXM packet_type is part of struct ofp_match in Packet
In and Packet Out. It should be OK for an OF 1.3 controller extended with PTAP
support)
o Is it simpler for the controllers to upgrade to OF 1.5?
o Deferred the decision
* Agreed to use the (to be assigned) OXM field code points for
packet_type and NSH in OVS for all OF versions
* Agreed to allow all NS=1 packet types received from/sent to a tunnel
port that uses the Ethertype name space in its protocol field (like GRE). Other
versatile tunnel ports (like VXLAN-GPE) which have their own code points
require explicit mapping and must drop packets for which no such mapping exists.
* Discussed introduction of a new OXM class for the proposed GEN_TLV
fields
o No problem to reserve an OXM class even before those fields are
standardized
o For standardization we also need to specify a dynamic binding mechanism
between protocol TLVs and GEN_TLV fields. We can submit the mechanism to be
developed in OVS for standardization when its stable.
* Walk-through of division into work packages:
o Some follow up needed for the L3 packet support kernel datapath patches
o Rest OK
o Technical discussion around GEN_TLV and use for NSH MD2 in conjunction
with encap(NSH) to be continued in the Google doc.
* Time line:
o The entire work should be targeting OVS 2.8 with feature freeze around
July
* OVS 2.7 is having feature freeze already in early January
o Work packages can be upstreamed individually. NSH MD1 support doesn't
have to wait for MD2
* Basically agreed to the work split proposed in the document:
o RedHat is taking the patches for L3 tunnel configuration (including use
of RTNETLINK for config)
o Ericsson take the infrastructure components (L3-tunnels, PTAP, Basic
EXT-382)
o Jarno (VMware) will handle the GEN_TLV infrastructure
o Confirm with Yi Yang (Intel): Can they take VXLAN-GPE and the
NSH-specific WPs? Or do they need help?
* Way of working
o Continue the meeting series for coordination of effort
o Can use a feature integration branch to ease the joint development and
test
o Review of patches mainly through the ovs-dev mailing list
o Use tools like git citool to break up larger patches into a series of
smaller patches for review
-----Original Appointment-----
From: Jan Scheurich
Sent: Sunday, 18 December, 2016 15:34
To: Jan Scheurich; Zoltán Balogh; Yang, Yi Y (yi.y.y...@intel.com); Jiri
Benc (jb...@redhat.com); Pravin Shelar; Simon Horman
(simon.hor...@netronome.com); jpet...@ovn.org; ja...@ovn.org; Ben Pfaff;
'ben.mackcr...@corsa.com'; d...@openvswitch.org
Subject: Sync on PTAP, EXT-382 and NSH
When: Wednesday, 21 December, 2016 17:00-18:30 (UTC+01:00) Amsterdam,
Berlin, Bern, Rome, Stockholm, Vienna.
Where: Skype Meeting
Moved to Wednesday same time to accommodate Jiri.
Hope this is still OK for the others.
Hello all,
I would like to call for a final sync meeting before the Christmas break.
Now that we have gone through the main aspects of the design, I would
like to focus on how to divide the entire function into manageable pieces,
discuss the potential work split, an integration anatomy and a rough time plane
for upstreaming. I will try to prepare input in our Google doc for this.
https://docs.google.com/document/d/1oWMYUH8sjZJzWa72o2q9kU0N6pNE-rwZcLH3-kbbDR8/edit
If there are questions left regarding the design, please bring them up as
well. You can also comment on the document at any time.
Regards, Jan
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