tree a942b244aa312a73977fd1877ca43f4ee2fee035
parent eef848fab61d15843a597ebf0bac85c530199809
author QUICHE team <quiche-dev@google.com> 1571411610 -0700
committer Copybara-Service <copybara-worker@google.com> 1571411646 -0700

Add a new Tunnel Health Checker. The health checker is configured to
run about every 5th ICMP probe and checks the packet exchanger's
counters in both directions. If *no* packets have passed in one
direction, this will tear down the tunnel, leaving it to be restarted on
the next epoll cycle.

gfe-relnote: n/a (QBONE-only change)
PiperOrigin-RevId: 275474401
Change-Id: I934c45ff35d855593518ce76f4f2d9326e269adb