Bug 2192913

Summary: [OVN+VLAN+DVR] Flooded packets testing e/w with different tenant networks [Core OVN tracker]
Product: Red Hat OpenStack Reporter: Eduardo Olivares <eolivare>
Component: openstack-neutronAssignee: Jakub Libosvar <jlibosva>
Status: CLOSED CURRENTRELEASE QA Contact: Candido Campos <ccamposr>
Severity: medium Docs Contact:
Priority: medium    
Version: 17.1 (Wallaby)CC: ccamposr, chrisw, gregraka, jamsmith, jlibosva, joflynn, ltomasbo, mariel, pasik, scohen
Target Milestone: z4Keywords: TestOnly, Triaged
Target Release: 17.1   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Enhancement
Doc Text:
This introduces an enhancement that you can configure to prevent flooding on the mesh between instances on different tenant networks. + Before this update, RHOSP environments with the OVN or OVS mechanism driver that had DVR enabled and used VLAN tenant networks, east/west traffic between instances connected to different tenant networks was flooded to the fabric. + To prevent this flooding in environments that use the OVN mechanism driver, you now can configure the parameter `OVNControllerGarpMaxTimeout` to control the frequency at which ovn-controller sends out out gratuitous ARP packets that announce MAC addresses of ports on VLAN tenant networks. + This parameter is not available in environments that use the OVS mechanism driver.
Story Points: ---
Clone Of:
: 2303550 2303551 (view as bug list) Environment:
Last Closed: 2024-12-03 15:44:48 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: 2087779    
Bug Blocks: 2303550, 2303551    

Comment 28 Red Hat Bugzilla 2025-04-03 04:25:09 UTC
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days