tree c87e26b25132220d35ca0d213510f1abe0637f20
parent 28e3a76ef1e2e7aebe1915f0446e1a7a03f8eb3f
author wub <wub@google.com> 1587066030 -0700
committer Copybara-Service <copybara-worker@google.com> 1587066070 -0700

gfe-relnote: In QUIC BBRv2's PROBE_BW mode, make sure the cwnd upper bound is at least BDP + AckHeight. Protected by --gfe2_reloadable_flag_quic_bbr2_avoid_too_low_probe_bw_cwnd.

Connection option 'B2CL' is introduced to hold back to the original behavior.

PiperOrigin-RevId: 306901798
Change-Id: Idc47368fd380419fce1f92f36a5a2ad3e1c879f3