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Bug
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Resolution: Not a Bug
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Major
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None
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4.17
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None
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Important
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None
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False
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Description of problem:
Customer is experiencing networking bug in the openshift installation process or during the node reprovisioning. Following is the custom network config from install-config. I'll attach the install-config to this ticket. ... networkConfig: interfaces: - name: ens5f0np0 type: ethernet state: up - name: ens5f1np1 type: ethernet state: up - name: bond0 type: bond state: up link-aggregation: mode: 802.3ad options: miimon: '100' port: - ens5f0np0 - ens5f1np1 - name: bond0.558 type: vlan state: up vlan: id: 558 base-iface: bond0 ipv4: address: - ip: 172.29.48.85 prefix-length: 24 enabled: true ... The problem is that there is and kernel parameter ip=dhcp which created an Wired Connection. This Wired Connection is upped during the boot, trying to grab IP. showing and MAC to a switch. After a brief moment this interface is disabled and correct interfaces are up. The switch gets too many duplicate MAC notifications and shuts the interface. The example kernel cmd: ``` cat /proc/cmdline BOOT_IMAGE=(hd1,gpt3)/boot/ostree/rhcos-bb187525ca172120c56627746610dd63bdd8e0b82b60bad8aff26eb64d0efdb3/vmlinuz-5.14.0-427.42.1.el9_4.x86_64 rw ostree=/ostree/boot.0/rhcos/bb187525ca172120c56627746610dd63bdd8e0b82b60bad8aff26eb64d0efdb3/0 ignition.platform.id=metal ip=dhcp root=UUID=b81a6411-16b3-494e-8764-9627bf95faa9 rw rootflags=prjquota boot=UUID=11d1c048-c7cb-46a7-ace2-f3b18dc99961 systemd.unified_cgroup_hierarchy=1 cgroup_no_v1=all psi=0 ``` Set up interfaces: ``` nnmcli con NAME UUID TYPE DEVICE ovs-if-br-ex 195f4820-70e0-4d16-9312-1621b5743555 ovs-interface br-ex bond0 925b4a95-2de0-5b2d-bcf5-8b684a7e9cb4 bond bond0 br-ex 2fb9cf54-87a7-4977-a853-4eb569b92426 ovs-bridge br-ex ens5f0np0 eae3bd00-bd10-5209-925d-21f595ba2e69 ethernet ens5f0np0 ovs-if-phys0 b46979df-6055-4e23-9575-b967d3e1f42a vlan bond0.558 ovs-port-br-ex 1ffcf8e5-e917-47da-b7dc-df4dce6fef36 ovs-port br-ex ovs-port-phys0 39d18cea-a69a-46d2-939c-f0a509c824aa ovs-port bond0.558 lo fded5a2b-2852-4ed7-baa5-3e1db7e93845 loopback lo bond0.558 1c93fc06-cbaa-5660-9b76-4d77011c9255 vlan -- ens5f1np1 4ce69d8f-e0b7-53c0-bca8-8b2102183e02 ethernet -- Wired Connection f1071a8c-01e6-48d2-83c2-5950f1204b74 ethernet -- ``` To correct the issue it is needed to remove ip=dhcp, regenerate the initramfs, remove wired interface and reboot. ``` pm-ostree initramfs --enable rpm-ostree kargs --delete=ip=dhcp nmcli con del "Wired Connection" ```
Version-Release number of selected component (if applicable):
How reproducible:
Steps to Reproduce:
1. 2. 3.
Actual results:
Expected results:
Please remove ip=dhpc when custom/static network configuration is provided.
Additional info: