Re: [quicwg/base-drafts] enforce the active_connection_id_limit (#3201)

Kazuho Oku <> Mon, 18 November 2019 09:38 UTC

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Date: Mon, 18 Nov 2019 01:37:58 -0800
From: Kazuho Oku <>
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Subject: Re: [quicwg/base-drafts] enforce the active_connection_id_limit (#3201)
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kazuho commented on this pull request.

> @@ -4590,8 +4595,14 @@ preferred_address (0x000d):
 active_connection_id_limit (0x000e):
 : The maximum number of connection IDs from the peer that an endpoint is willing
-  to store. This value includes only connection IDs sent in NEW_CONNECTION_ID
-  frames. If this parameter is absent, a default of 0 is assumed.
+  to store. This value includes connection IDs sent in NEW_CONNECTION_ID frames,
+  the connection ID used during the handshake as well as the connection ID
+  provided in the preferred_address transport parameter.
+  Unless a zero-length connection ID is being used, the value of the
+  active_connection_id_limit parameter MUST be no less than 2. If this
+  transport parameter is absent, a default of 2 is assumed.
+  When a zero-length connection ID is being used, the active_connection_id_limit
+  parameter MUST NOT be sent.

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