Subject: [quicwg/base-drafts] f4ef38: Server sends a PING-only packet if it's limited

From: ianswett <[email-masked]>
Date: Mon, 28 Oct 2019 11:02:54 -0700

Branch: refs/heads/ianswett-server-ping
  Home:   https://github.com/quicwg/base-drafts
  Commit: f4ef38a26a8fc64277204ab4b066e38a82e5ea35
      https://github.com/quicwg/base-drafts/commit/f4ef38a26a8fc64277204ab4b066e38a82e5ea35
  Author: ianswett <[email-masked]>
  Date:   2019-10-28 (Mon, 28 Oct 2019)

  Changed paths:
    M draft-ietf-quic-recovery.md

  Log Message:
  -----------
  Server sends a PING-only packet if it's limited

If a server is limited by the amplification factor when the PTO expires, send a PING-only packet instead of sending nothing.

This also removes the client complexity of continuing to arm the PTO and send even when there's nothing in flight and nothing to send.