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kvm,physical network: change in storage traffic behaviour #563

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kvm,physical network: change in storage traffic behaviour
shwstppr Sep 15, 2025
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Update source/installguide/configuration.rst
shwstppr Nov 13, 2025
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12 changes: 12 additions & 0 deletions source/installguide/configuration.rst
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Expand Up @@ -353,6 +353,18 @@ Basic Zone Configuration
drag and drop traffic types onto the network. You can also change the
network name if desired.

.. note::
Starting with CloudStack version 4.21.0 and 4.20.2, the behavior of
VLAN and networking configuration for the storage traffic type in KVM
zones has changed. When a VLAN tag is specified for storage traffic,
a new vNet interface will be created on the storage bridge.

This change in behavior may require administrators to review their
existing configurations. For environments where a dedicated storage
bridge is used and the creation of an additional vNet interface is not
desired, the traffic type configuration must be updated to clear the
VLAN tag.

#. Assign a network traffic label to each traffic type on the physical
network. These labels must match the labels you have already defined
on the hypervisor host. To assign each label, click the Edit button
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