From 4ba31453caefbd1844db985bc467a86b282a2ec8 Mon Sep 17 00:00:00 2001
From: Benjamin Saunders <ben.e.saunders@gmail.com>
Date: Thu, 11 Apr 2019 17:35:12 -0700
Subject: [PATCH] 3*PTO lower-bound for idle timeout

---
 quinn-proto/src/connection.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/quinn-proto/src/connection.rs b/quinn-proto/src/connection.rs
index f1f047e76..a88d60ce9 100644
--- a/quinn-proto/src/connection.rs
+++ b/quinn-proto/src/connection.rs
@@ -770,8 +770,8 @@ impl Connection {
             self.io.timer_stop(Timer::Idle);
             return;
         }
-        self.io
-            .timer_start(Timer::Idle, now + Duration::from_millis(self.idle_timeout));
+        let dt = cmp::max(Duration::from_millis(self.idle_timeout), 3 * self.pto());
+        self.io.timer_start(Timer::Idle, now + dt);
     }
 
     fn reset_keep_alive(&mut self, now: Instant) {