Bug 1854084 - [OSP16.1.][OVN][Fragmentation][ipv4] 100% packet loss on attempt to send UDP/ICMP packets above MTU size
Summary: [OSP16.1.][OVN][Fragmentation][ipv4] 100% packet loss on attempt to send UDP/...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: python-networking-ovn
Version: 16.1 (Train)
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: z2
: 16.1 (Train on RHEL 8.2)
Assignee: Lucas Alvares Gomes
QA Contact: Roman Safronov
URL:
Whiteboard:
Depends On: 1833813
Blocks: 1547074
TreeView+ depends on / blocked
 
Reported: 2020-07-06 10:34 UTC by Roman Safronov
Modified: 2020-10-30 09:14 UTC (History)
14 users (show)

Fixed In Version:
Doc Type: No Doc Update
Doc Text:
Clone Of: 1833813
Environment:
Last Closed: 2020-10-28 15:38:12 UTC
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHEA-2020:4284 0 None None None 2020-10-28 15:38:33 UTC

Comment 4 Jakub Libosvar 2020-09-29 17:26:16 UTC 
There is nothing required from the dev side in networking-ovn, moving back to ON_QA
Comment 5 Roman Safronov 2020-09-30 12:46:21 UTC 
Tested on RHOS-16.1-RHEL-8-20200925.n.1 with kernel manually updated on all overcloud nodes to kernel-4.18.0-193.20.1.el8_2 (AFAIU not released yet, according to https://bugzilla.redhat.com/show_bug.cgi?id=1860169 GA planned to 2020-10-20)

With updated kernel (kernel-4.18.0-193.20.1.el8_2) udp fragmentation worked. With default kernel (4.18.0-193.19.1.el8_2.x86_64) fragmentation did not work.
Comment 12 errata-xmlrpc 2020-10-28 15:38:12 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 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/RHEA-2020:4284
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