https://getfelix.dev/topics/networking/ Felix blog posts about networking. en https://getfelix.dev/blog/point-your-kafka-client-at-felix.html https://getfelix.dev/blog/point-your-kafka-client-at-felix.html Mon, 28 Sep 2026 00:00:00 +0000 Felix brokers speak enough of the Kafka wire protocol for Kafka producers and partition-assigning consumers to use durable Felix streams; this is how a Kafka request becomes a Felix operation, how idempotent sequences survive a failover, and exactly where compatibility stops. https://getfelix.dev/blog/ten-parcels-one-envelope.html https://getfelix.dev/blog/ten-parcels-one-envelope.html Sun, 27 Sep 2026 00:00:00 +0000 Raising Felix's QUIC MTU on Linux stalled delivery for good, because UDP GSO turns ten packets into one datagram the kernel refuses and quinn never falls back; this is how we found it, why the cap is 6,550, and why 4,096 is the default.