Bug 1874591
Summary: | MTU autodetection fails on single-stack IPv6 | ||
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Product: | OpenShift Container Platform | Reporter: | Dan Winship <danw> |
Component: | Networking | Assignee: | Antonio Ojea <aojeagar> |
Networking sub component: | ovn-kubernetes | QA Contact: | Arik Chernetsky <achernet> |
Status: | CLOSED ERRATA | Docs Contact: | |
Severity: | medium | ||
Priority: | unspecified | CC: | anusaxen, yprokule |
Version: | 4.6 | Flags: | anusaxen:
needinfo-
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Target Milestone: | --- | ||
Target Release: | 4.6.0 | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | If docs needed, set a value | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2020-10-27 16:36:42 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: |
Description
Dan Winship
2020-09-01 17:15:30 UTC
Can we assume "or force" that, in dual stack, IPv4 and IPv6 will have ALWAYS the same MTU (and that the default route will use the same interface)? Managing different MTUs per family seems a bad idea and a is very BAD networking practice. We can take the minimum common MTU in this case This bug is pretty much just a matter changing netlink.FAMILY_V4 to netlink.FAMILY_ALL in GetDefaultMTU. I'm not sure why I filed a bug rather than filing the PR actually. @arik, could you help us your team verify this since you have single/dual stack clusters being deployed? Please re-assign accordingly. Thanks 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 (OpenShift Container Platform 4.6 GA Images), 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-2020:4196 |