iptables-alerter DaemonSet is experiencing high CPU in OpenShift Container Platform 4.

Issue

The DaemonSet iptables-alerter is using high CPU and reaching the set limits.

NAME                                CPU(cores)   MEMORY(bytes)
iptables-alerter-4wk77              0m           125Mi
iptables-alerter-5rdg6              11m          148Mi
iptables-alerter-5wzpn              0m           118Mi
iptables-alerter-8vz7s              0m           115Mi
iptables-alerter-9qfqc              11m          120Mi
iptables-alerter-k8kb5              0m           128Mi
iptables-alerter-km8x4              0m           116Mi
iptables-alerter-qblr2              10m          130Mi
network-operator-7b7f94c695-vzg9b   3m           217Mi