sed for processing for several times with the rules predefined, like <code>pre_routing</code>, <code>post_routing</code> and etc. When the packet becomes a TCP packet or UDP packet, and is forwarded to user space, some additional steps like packet validation, protocol policy processing and destination socket searching will be performed. When a sidecar is configured to intercept traffic, the original data path can become very long, since duplicated steps are performed several times.</p><p>Over the past two y