Add a new inflight_hi_limited_in_round to QUIC BBRv2 to replace the more complex logic about when to raise inflight_hi there is today.  This is more in line with BBRv2's intended inflight_hi growth, but avoids a number of problems around being app-limited or aggregation.  Activated by the BBHI connection option.

Protected by gfe2_reloadable_quic_bbr2_simplify_inflight_hi.

PiperOrigin-RevId: 490084354
7 files changed
tree: 8f4329b5f67755fe75ab6013a502ea23c0d1aeb2
  1. build/
  2. depstool/
  3. quiche/
  4. .bazelrc
  5. BUILD.bazel
  10. WORKSPACE.bazel


QUICHE stands for QUIC, Http, Etc. It is Google‘s production-ready implementation of QUIC, HTTP/2, HTTP/3, and related protocols and tools. It powers Google’s servers, Chromium, Envoy, and other projects. It is actively developed and maintained.

There are two public QUICHE repositories. Either one may be used by embedders, as they are automatically kept in sync:

To embed QUICHE in your project, platform APIs need to be implemented and build files need to be created. Note that it is on the QUICHE team's roadmap to include default implementation for all platform APIs and to open-source build files. In the meanwhile, take a look at open source embedders like Chromium and Envoy to get started:

To contribute to QUICHE, follow instructions at

QUICHE is only supported on little-endian platforms.