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OpenStack known issues

This section lists the OpenStack known issues with workarounds for the Mirantis OpenStack for Kubernetes release 23.1.

[25124] MPLSoGRE encapsulation has limited throughput

Multiprotocol Label Switching over Generic Routing Encapsulation (MPLSoGRE) provides limited throughput while sending data between VMs up to 38 Mbps, as per Mirantis tests.

As a workaround, switch the encapsulation type to VXLAN in the OpenStackDeployment custom resource:

spec:
  services:
    networking:
      neutron:
        values:
          conf:
            bagpipe_bgp:
              dataplane_driver_ipvpn:
                mpls_over_gre: "False"
                vxlan_encap: "True"