https://nalar.dev/tags/quic/ Recent content in QUIC on Nalar Hugo en-us Tue, 15 Sep 2026 00:00:00 +0700 https://nalar.dev/quic-connection-ids-keep-sessions-across-address-changes/ Tue, 15 Sep 2026 00:00:00 +0700 https://nalar.dev/quic-connection-ids-keep-sessions-across-address-changes/ <p>A network connection is often associated with addresses and ports. That works well while both endpoints keep the same network attachment, but mobile devices regularly move between Wi-Fi and cellular service, and NAT devices can replace an external UDP port while an application is still active.</p> <p>QUIC provides another identifier for the transport connection: the connection ID. A non-zero-length connection ID lets an endpoint associate incoming QUIC packets with existing connection state even when the packet arrives from a different IP address or UDP port.</p>