Bug 2322938
| Summary: | [Doc] [ML2/OVN] ovn_emit_need_to_frag should be enabled by default | ||
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| Product: | Red Hat OpenStack | Reporter: | Greg Rakauskas <gregraka> |
| Component: | documentation | Assignee: | Greg Rakauskas <gregraka> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | RHOS Documentation Team <rhos-docs> |
| Severity: | urgent | Docs Contact: | |
| Priority: | high | ||
| Version: | 17.1 (Wallaby) | CC: | bcafarel, bmv, chrisw, fyanac, gregraka, ihrachys, lmartins, mburns, mtomaska, rhos-maint, scohen, ykarel |
| Target Milestone: | z4 | Keywords: | Triaged |
| Target Release: | 17.1 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Known Issue | |
| Doc Text: |
Currently, when MTUs mismatch, the communicating peers are unaware of the discrepancy, and the Networking service (neutron) can silently drop the packets. OVN is the cause of this problem because it fails to emit the message, `ICMP Fragmentation Needed`. *Workaround:* the preferred method is to adjust the MTU value to prevent packets that are too large from being transmitted. An alternative method is to set the `OVNEmitNeedToFrag` option in the tripleo templates. For more information, see the Knowledgebase solution, link:https://access.redhat.com/solutions/7092922[Neutron ML2/OVN packet fragmentation problems].
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Story Points: | --- |
| Clone Of: | 2314429 | Environment: | |
| Last Closed: | 2024-10-31 14:03:35 UTC | Type: | --- |
| 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: | 2314429 | ||
| Bug Blocks: | |||
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Comment 2
Greg Rakauskas
2024-10-31 14:03:35 UTC
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