quic: Use IPv6 flow labels to avoid network black holes

[RyanTheOptimist]

trafficstars

Added QUIC protocol option enable_blackhold_avoidance_via_flowlables to make the server use IPv6 flow labels to attempt to avoid network black holes.

[repokitteh-read-only[bot]]

CC @envoyproxy/api-shepherds: Your approval is needed for changes made to (api/envoy/|docs/root/api-docs/). envoyproxy/api-shepherds assignee is @markdroth CC @envoyproxy/api-watchers: FYI only for changes made to (api/envoy/|docs/root/api-docs/).

:cat:

Caused by: https://github.com/envoyproxy/envoy/pull/39949 was opened by RyanTheOptimist.

see: more, trace.

[yanavlasov]

@RyanTheOptimist is it possible to construct a unit test for it, or is the flow label not surfaced in QUIC APIs.

Also needs main merge.

/wait

[RyanTheOptimist]

@RyanTheOptimist is it possible to construct a unit test for it, or is the flow label not surfaced in QUIC APIs.

Done! Sorry, I had meant to mark this as a draft. But done now!

Also needs main merge.

/wait

[adisuissa]

Seems that some tests are failing. Assigning @ggreenway and @yanavlasov for senior-maintainers review. /assign @yanavlasov @ggreenway /wait

[github-actions[bot]]

This pull request has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed in 7 days if no further activity occurs. Please feel free to give a status update now, ping for review, or re-open when it's ready. Thank you for your contributions!

[github-actions[bot]]

This pull request has been automatically closed because it has not had activity in the last 37 days. Please feel free to give a status update now, ping for review, or re-open when it's ready. Thank you for your contributions!