Bug 1960629

Summary: Allowed address pairs aren't populated to the new host with DVR router
Product: Red Hat OpenStack Reporter: Slawek Kaplonski <skaplons>
Component: openstack-neutronAssignee: Slawek Kaplonski <skaplons>
Status: CLOSED ERRATA QA Contact: Candido Campos <ccamposr>
Severity: high Docs Contact:
Priority: high    
Version: 16.1 (Train)CC: chrisw, ffernand, ldenny, scohen
Target Milestone: ---Keywords: Triaged
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: openstack-neutron-15.2.1-1.20210602143304.el8ost Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of:
: 1963869 1972472 (view as bug list) Environment:
Last Closed: 2021-12-09 20:19:32 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1952464, 1963869, 1972472    

Description Slawek Kaplonski 2021-05-14 12:47:28 UTC 
In the DVR routers, neutron-server needs to populate ARP entries also for IPs added to the ports as allowed address pairs. When e.g. new IP is added to the allowed address pairs of the port, it works fine and neutron server sends notification about such new arp entry to the all L3 agents where dvr router is placed.

But in case when new vm plugged to the same router is spawned on completly new compute, or existing vm is migrated to the new compute where dvr router wasn't created before, arp entries for allowed address pairs aren't populated at all.
Comment 24 errata-xmlrpc 2021-12-09 20:19:32 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Red Hat OpenStack Platform 16.1.7 (Train) bug fix and enhancement advisory), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:3762