When the VM has 2+ secondary networks, SyncVMI is done continuously in a loop and the VMI object status is updated continuously with IP address changes (add/remove/add/remove...)

The UI slows down because of this as well, too many updates.

CNV 4.19.8

Always

1. Create a VM with 2+ secondary networks

spec:
  domain:
    devices:
      interfaces:
        - bridge: {}
          macAddress: "52:54:00:00:09:06"
          model: virtio
          name: nic
        - macAddress: 02:67:fe:00:00:02
          masquerade: {}
          model: virtio
          name: nic-chocolate-skink-72
          state: up
        - bridge: {}
          macAddress: 02:67:fe:00:00:05
          model: virtio
          name: nic-violet-salmon-34
          state: up
  networks:
    - multus:
        networkName: virt
      name: nic
    - name: nic-chocolate-skink-72
      pod: {}
    - multus:
        networkName: shift
      name: nic-violet-salmon-34

2. Start the VM

SyncVMI looping many times a second, IP address being updated endlessly in the VMI object.

# oc get vmi rhel-96 -w
NAME      AGE     PHASE     IP             NODENAME                READY
rhel-96   4m27s   Running   192.168.2.84   white.shift.home.arpa   True
rhel-96   4m27s   Running                  white.shift.home.arpa   True
rhel-96   4m27s   Running   192.168.2.84   white.shift.home.arpa   True
rhel-96   4m27s   Running                  white.shift.home.arpa   True
rhel-96   4m27s   Running   192.168.2.84   white.shift.home.arpa   True
rhel-96   4m27s   Running                  white.shift.home.arpa   True
rhel-96   4m27s   Running   192.168.2.84   white.shift.home.arpa   True
rhel-96   4m27s   Running                  white.shift.home.arpa   True
rhel-96   4m27s   Running   192.168.2.84   white.shift.home.arpa   True
rhel-96   4m27s   Running                  white.shift.home.arpa   True
rhel-96   4m28s   Running   192.168.2.84   white.shift.home.arpa   True
rhel-96   4m28s   Running                  white.shift.home.arpa   True
rhel-96   4m28s   Running   192.168.2.84   white.shift.home.arpa   True
rhel-96   4m28s   Running                  white.shift.home.arpa   True
rhel-96   4m28s   Running   192.168.2.84   white.shift.home.arpa   True
rhel-96   4m28s   Running                  white.shift.home.arpa   True
rhel-96   4m28s   Running   192.168.2.84   white.shift.home.arpa   True
rhel-96   4m28s   Running                  white.shift.home.arpa   True


{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:35.979577Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:35.996711Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:36.179636Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:36.197512Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:36.378210Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:36.394401Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:36.580610Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:36.597274Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:36.779068Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:36.795814Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:36.979971Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:36.997183Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:37.178693Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:37.195548Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:37.380939Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:37.397666Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:37.578681Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:37.594417Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:37.779614Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}{"component":"virt-launcher","kind":"","level":"info","msg":"Synced vmi","name":"rhel-96","namespace":"homelab","pos":"server.go:208","timestamp":"2025-09-16T01:38:37.797509Z","uid":"177ad70b-5539-45d8-a2a2-34c947a3f1d4"}