document known issue during live migration#1067
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Pull request overview
This PR updates the live migration documentation to capture a known issue (harvester/harvester#10653) related to network disruption during VM live migration, and provides a workaround for operators.
Changes:
- Added a new Known Issues entry linking to issue #10653.
- Documented the observed symptom (network disruption from repeated MAC moves) and a proposed workaround using
disableContainerInterface.
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| MAC address of the VM interface moved more than once between the source and target hosts during live migration.Due to this external switches learnt the same mac on two different interfaces causing a network disruption. | ||
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| Workaround: | ||
| Setting disableContainerInterface to true on the NetworkAttachMantDefinition config [disableContainerInterface](https://www.cni.dev/plugins/current/main/bridge/#example-l2-only-disabled-interface-configuration) before starting the live migration will enable the pod interface a bit later, but not during switchover avoiding multiple mac moves. |
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Signed-off-by: Renuka Devi Rajendran <renuka.rajendran@suse.com>
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Problem:
document known issue harvester/harvester#10653 during live migration
Solution:
document known issue harvester/harvester#10653 during live migration
Related Issue(s):
harvester/harvester#10653
Test plan:
Additional documentation or context