flannel: Generates an interface corresponding to a flannel config file
tuning: Tweaks sysctl parameters of an existing interface
portmap: An iptables-based portmapping plugin. Maps ports from the host’s address space to the container.
bandwidth: Allows bandwidth-limiting through use of traffic control tbf (ingress/egress).
sbr: A plugin that configures source based routing for an interface (from which it is chained).
firewall: A firewall plugin which uses iptables or firewalld to add rules to allow traffic to/from the container.