Red Hat Bugzilla – Bug 1368043
[RFE] OVN: IP address management with static MACs
Last modified: 2018-07-16 11:30:07 EDT
The commit message for: https://github.com/openvswitch/ovs/commit/8639f9becd81e4c0c6737a103b748609b411c978 suggests that only dynamic macs will be supported. For our needs we need support for static MACs. When a NIC with a static MAC (provided externally) is connected and is marked for IP allocation, the IPAM should allocate an IP address to the NIC. This will be helpful for any scenario where many VM's with fixed MACs are deployed.
RFC patch with static MAC support posted here: http://openvswitch.org/pipermail/dev/2016-September/079544.html
It's my understanding that OVS 2.6 (the first release with OVN) will not be available in the fast datapath beta channel until February 2017, which would be earliest that this could be included in a released package.
(In reply to Lance Richardson from comment #5) > It's my understanding that OVS 2.6 (the first release with OVN) > will not be available in the fast datapath beta channel until > February 2017, which would be earliest that this could be included > in a released package. and we need to backport this patch to our OVS 2.6 package. Lance, that's on your todo list, right?
(In reply to Russell Bryant from comment #6) > and we need to backport this patch to our OVS 2.6 package. Lance, that's on > your todo list, right? Correct, that will need to be handled as a downstream backport (one of several I'll be handling at this point).
RPMS with changes for this BZ can be found here: http://download.eng.bos.redhat.com/brewroot/packages/openvswitch/2.6.1/2.git20161206.el7fdb
Created attachment 1231245 [details] log files
(In reply to Mor from comment #9) > Created attachment 1231245 [details] > log files The northd log has: 2016-12-13T06:23:30.269Z|00002|daemon_unix(monitor)|ERR|1 crashes: pid 26011 died, killed (Segmentation fault), core dumped, restarting Could you attach a few of the core dump files? Thanks, Lance
I was requested to try the RPM's from the brew repository with my test cases. One of them that checks for IPAM functionality failed. The scenario was: Start a VM with OVN network that has subnet defined, and try to request for IP address from DHCP. Test failed at around: 2016-12-13 13:39. I have attached the logs from the engine and host.
Hi guys, Quick update on my recent finding: Running with the latest version of OVN provider, the process ovn-northd is no longer crashing in the setup. Thanks!
Verified with openvswitch-2.6.1-3.git20161206.el7fdb.x86_64 the command in test is as: ovn-nbctl lsp-set-addresses $port "$mac dynamic". It assigns only IPv4 address, and Russell Bryant has confirmed this in another separate mail that "I just read the code and it looks like IPAM only supports IPv4. I've put IPv6 IPAM on our backlog." beaker job: https://beaker.engineering.redhat.com/jobs/1666684
Closing resolved bugs.