Description of problem:

When planning https://issues.redhat.com/browse/TELCODOCS-2278 it became apparent that documentation does not exist for an important supported secondary network of bond cni. 

No mention here: 

• https://docs.okd.io/4.18/networking/multiple_networks/understanding-multiple-networks.html#additional-networks-provided_understanding-multiple-networks
• https://docs.okd.io/4.18/networking/multiple_networks/understanding-multiple-networks.html#additional-networks-provided_understanding-multiple-networks

No example here: https://docs.okd.io/4.18/networking/multiple_networks/secondary_networks/creating-secondary-nwt-other-cni.html

SR-IOV config https://docs.okd.io/4.18/networking/hardware_networks/using-pod-level-bonding.html#nw-sriov-cfg-creating-bond-network-attachment-definition_using-pod-level-bonding above  may be enough to cover worked example of bond CNI with SR-IOV. 

See here around since 4.10 https://www.redhat.com/en/blog/bonds-in-openshift-pods 

This would be good to replicate in the docs as per standard we follow for other CNIs. We do cover wrt to SR-IOV but no specific standalone mention. See https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html/networking/hardware-networks#nw-sriov-cfg-bond-interface-with-virtual-functions_using-pod-level-bonding

NOTE: OCP only supports bond CNI with SR-IOV VFs (as detailed in the docs) 

Additional references

https://www.cni.dev/docs/

https://github.com/k8snetworkplumbingwg/bond-cni

https://www.redhat.com/en/blog/using-the-multus-cni-in-openshift

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