TCP proxy

• This filter should be configured with the name envoy.tcp_proxy.

The upstream cluster used by the TCP proxy filter can be dynamically set by other network filters on a per-connection basis by setting a per-connection state object under the key envoy.tcp_proxy.cluster. See the implementation for the details.

Statistics

The TCP proxy filter emits both its own downstream statistics as well as many of the where applicable. The downstream statistics are rooted at tcp.. with the following statistics: