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Day 3 / Track 1 / Talk 8 Talk – Nuts-n-Bolts: Conntrack: tales of software datapaths Speakers: Aaron Conole, Marcelo Leitner Report by: Anjali Singhai
i. Lack of offloaded conntrack is visible
ii. Hinders open vswitch offload
iii. Major cloud vendors are abandoning "conntrack" where they can and devising their own connection tracking.
iv. Open stack and cloud vendors still need it
v. It must integrate with current offloading datapath.
2. Part of netfliter, it’s easy to integrate
vi. Work done to integrate with tc
3. Ct action marking, sending to conntrack, setting zone information
4. CT action was RCU-fied
vii. Future work:
5. Better understand performance
6. NAT support
7. OvS action ct(table=X) creates a copy of the packet and returns the ruleset. How can we do that too?
8. Offloading hooks still need to be worked out.
9. Mellanox working with Redhat to get ct work done.
10. Kubernetees need connection tracking…floating IP
Site: https://www.netdevconf.org/0x13/session.html?talk-conntrack-tales Slides: Videos: