kvm,physical network: change in storage traffic behaviour#563
kvm,physical network: change in storage traffic behaviour#563shwstppr wants to merge 2 commits intoapache:4.20from
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@weizhouapache @rajujith we can add a change in release notes at the time of release, can you please review if we need this? |
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lgtm
thanks @shwstppr
| zones has changed. When a VLAN tag is specified for storage traffic, | ||
| a new vNet interface will be created on the storage bridge. If a | ||
| dedicated bridge is used for storage traffic, it is recommended not to | ||
| configure a VLAN tag for this traffic type. |
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it is recommended not to
configure a VLAN tag for this traffic type
I think we should remove this statement, VLAN can be used for storage traffic, whether the bridge is dedicated to storage or it's used for other traffic as well.
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it is recommended not to
configure a VLAN tag for this traffic type.
Why?
This note is critical and could use thorough documentation. If I'm understanding correctly, if the vlan tag is provided cloudstack will create its own bridge (brbond0-###). If its not provided then it will use a predefined bridge.
Upgrading from 4.19 to 4.22 this change in behavior caused a lot of digging.
1-21 20:34:01,539 DEBUG [kvm.resource.BridgeVifDriver] (AgentRequest-Handler-1:[]) (logid:be187ea6) nic=[Nic:Storage-10.58.67.209-storage://###]
2026-01-21 20:34:01,540 DEBUG [kvm.resource.BridgeVifDriver] (AgentRequest-Handler-1:[]) (logid:be187ea6) creating a vNet dev and bridge for Storage traffic per traffic label cloud-brnnas
2026-01-21 20:34:01,540 DEBUG [kvm.resource.BridgeVifDriver] (AgentRequest-Handler-1:[]) (logid:be187ea6) Executing command [/usr/share/cloudstack-common/scripts/vm/network/vnet/modifyvlan.sh -v ### -p bond0 -b brbond0-### -o add ].
2026-01-21 20:34:01,573 DEBUG [kvm.resource.BridgeVifDriver] (AgentRequest-Handler-1:[]) (logid:be187ea6) Successfully executed process [3482737] for command [/usr/share/cloudstack-common/scripts/vm/network/vnet/modifyvlan.sh -v ### -p bond0 -b brbond0-### -o add ].
Related: apache/cloudstack#11634 (comment) Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
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@blueorangutan docbuild |
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@shwstppr a Jenkins job has been kicked to build the document. I'll keep you posted as I make progress. |
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QA-Doc build preview: https://qa.cloudstack.cloud/builds/docs-build/pr/563. (QA-JID 461) |
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Related: apache/cloudstack#11634 (comment)
📚 Documentation preview 📚: https://cloudstack-documentation--563.org.readthedocs.build/en/563/