Bug 2173575 - Flooding issue at br-int for unknown IPs due to missing FDB entries
Summary: Flooding issue at br-int for unknown IPs due to missing FDB entries
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-neutron
Version: 17.0 (Wallaby)
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ga
: 17.1
Assignee: Luis Tomas Bolivar
QA Contact: Maor
URL:
Whiteboard:
: 2184552 (view as bug list)
Depends On:
Blocks: 2183483
TreeView+ depends on / blocked
 
Reported: 2023-02-27 09:58 UTC by Eduard Barrera
Modified: 2023-08-21 06:26 UTC (History)
14 users (show)

Fixed In Version: openstack-neutron-18.6.1-1.20230518200958.da43b03.el9ost
Doc Type: Bug Fix
Doc Text:
Before this update, a flooding issue occurred when an instance, associated with a provider network with disabled port security, attempted to reach IPs on the provider network that were not recognized by OpenStack. This flooding occurred because the forwarding database (FDB) table was not learning MAC addresses. This update uses a new option in OVN to enable the learning of IPs in the FDB table. There is currently no aging mechanism for the FDB table. But you can clean up the FDB table periodically, to prevent the occurrence of scaling issues caused by the size of this table.
Clone Of:
Environment:
Last Closed: 2023-08-16 01:13:59 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Launchpad 2012069 0 None None None 2023-03-17 13:57:52 UTC
OpenStack gerrit 877675 0 None MERGED Add support for localnet_learn_fdb OVN option 2023-05-28 08:35:31 UTC
Red Hat Bugzilla 2179942 0 medium CLOSED Add FDB aging mechanism. 2024-01-24 11:26:31 UTC
Red Hat Issue Tracker OSP-22663 0 None None None 2023-02-27 10:00:00 UTC
Red Hat Product Errata RHEA-2023:4577 0 None None None 2023-08-16 01:14:23 UTC

Comment 49 Miguel Lavalle 2023-05-04 13:52:26 UTC 
*** Bug 2184552 has been marked as a duplicate of this bug. ***
Comment 67 errata-xmlrpc 2023-08-16 01:13:59 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 (Release of components for Red Hat OpenStack Platform 17.1 (Wallaby)), 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/RHEA-2023:4577
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