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Type: Bug
Resolution: Done
Priority: Major
Fix Version/s: None
Affects Version/s: 4.14
Component/s: Documentation / CNF
Labels:
- TPSDocs:Triaged

Activity Type:
Quality / Stability / Reliability
Blocked:
False
Blocked Reason:

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None

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None
Story Points:
2
Severity:
Moderate
Regression:
None
Latest Status Summary:

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Docs Status: 2024/09/30: peer review complete; needs change management
Docs Status: 2024/09/09: Text proposal on QE review

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Docs Status: 2024/09/30: peer review complete; needs change management Docs Status: 2024/09/09: Text proposal on QE review

Target Backport Versions:
None
Target Version:

4.14
Release Blocker:
None
Sprint:
T&PS 2024 #9, T&PS 2024 #10
sprint_count:
2

RH Private Keywords:

SFDC Cases Counter:
SFDC Cases Open:
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PX Priority Data:
PX Impact Score:

Release Note Status:
In Progress
Release Note Type:
Bug Fix
Release Note Text:

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There is a known issue when upgrading the Cluster Network Operator from version 4.13 to 4.14. The conversion to the new OVN Kubernetes interconnect multi-zone architecture can lead to packet drops that cause brief network outages. The impact is on East/West traffic in local gateway mode with `routingViaHost` set to `true`.

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There is a known issue when upgrading the Cluster Network Operator from version 4.13 to 4.14. The conversion to the new OVN Kubernetes interconnect multi-zone architecture can lead to packet drops that cause brief network outages. The impact is on East/West traffic in local gateway mode with `routingViaHost` set to `true`.

Escape Reason:
None
Escape Impact:
None
Corrective Measures:
None
SDLC stage when should've been found:
None

Hi,

We should add a release note to 4.14 stating that the pods on each node during the `network` upgrade stage will encounter up to 300ms of network outages. This happens in a rolling fashion node by node when the ovn-kube pods are restarted and migrate to interconnect multizone.
The reason is the transition from non-interconnect to interconnect.

Thanks,

Andreas

Assignee:: Shane Lovern

Reporter:: Andreas Karis

Need Info From:: None

Contributors:: None

QA Contact:: Zhanqi Zhao

Doc Contact:: None

Votes:: 0 Vote for this issue

Watchers:: 9 Start watching this issue

Created:: 2024/08/23 12:31 PM

Updated:: 2025/09/13 5:41 PM

Resolved:: 2024/10/21 10:15 AM

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