Raise HTTP/2 SETTINGS limits - #13444
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HTTP/2 extensions can add enough SETTINGS parameters to exceed the defaults, causing Traffic Server to close otherwise valid connections before a request. This occurs with Meta forward proxy traffic that advertises WebTransport-over-HTTP/2 settings. This raises the per-frame limit to 16 and the per-minute limit to 32, retaining abuse protections while allowing protocol growth. This also adds an AuTest that sends an extension-rich SETTINGS frame and verifies that the subsequent request succeeds. Fixes: apache#13443
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HTTP/2 extensions can add enough SETTINGS parameters to exceed the
defaults, causing Traffic Server to close otherwise valid connections
before a request. This occurs with Meta forward proxy traffic that
advertises WebTransport-over-HTTP/2 settings.
This raises the per-frame limit to 16 and the per-minute limit to
32, retaining abuse protections while allowing protocol growth. This
also adds an AuTest that sends an extension-rich SETTINGS frame and
verifies that the subsequent request succeeds.
Fixes: #13443