etworking/virtual-service/#L4MatchAttributes>matching on specific IPs and ports</a> and routing it to different upstream services than requested.</p><h3 id=tls>TLS</h3><p>When processing TLS traffic, Istio has slightly more information available than raw TCP: we can inspect the <a href=https://en.wikipedia.org/wiki/Server_Name_Indication>SNI</a> field presented during the TLS handshake.</p><p>For standard Services, the same IP:Port matching is used as for raw TCP.
However, for services that do not have a Se