dbhat commented on a change in pull request #7516:
URL: https://github.com/apache/trafficserver/pull/7516#discussion_r605277149
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File path: doc/admin-guide/plugins/header_rewrite.en.rst
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@@ -491,6 +491,15 @@ SSN-TXN-COUNT
Returns the number of transactions between the Traffic Server proxy and the
origin server from a single session.
Any value greater than zero indicates connection reuse.
+TCP-INFO
+~~~~~~~~
+::
+
+ cond %{<name>}
+ add-header @PropertyName "%{TCP-INFO}"
+
+This operation records TCP Info struct field values as an Internal remap as
well as global header at the event hook specified by the condition. Supported
hook conditions include TXN_START_HOOK, SEND_RESPONSE_HEADER_HOOK and
TXN_CLOSE_HOOK in the Global plugin and REMAP_PSEUDO_HOOK,
SEND_RESPONSE_HEADER_HOOK and TXN_CLOSE_HOOK in the Remap plugin. Conditions
supported as request headers include TXN_START_HOOK and REMAP_PSEUDO_HOOK. The
other conditions are supported as response headers. TCP Info fields currently
recorded include rtt, rto, snd_cwnd and all_retrans. This operation is not
supported on internal transactions.
+
Review comment:
Reworded to clarify.
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