From 22fdd3a6ea41cc31bb7169b38a2e86620dbb6cfa Mon Sep 17 00:00:00 2001
From: Pierre Krieger <pierre.krieger1708@gmail.com>
Date: Mon, 7 Dec 2020 15:04:32 +0100
Subject: [PATCH] Fix #7629 (#7680)

* Fix #7629

* Update client/network/src/service.rs

Co-authored-by: Max Inden <mail@max-inden.de>

Co-authored-by: Max Inden <mail@max-inden.de>
---
 substrate/client/network/src/service.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/substrate/client/network/src/service.rs b/substrate/client/network/src/service.rs
index b6f162affd..c59aeb4122 100644
--- a/substrate/client/network/src/service.rs
+++ b/substrate/client/network/src/service.rs
@@ -668,9 +668,9 @@ impl<B: BlockT + 'static, H: ExHashT> NetworkService<B, H> {
 				sink.clone()
 			} else {
 				// Notification silently discarded, as documented.
-				log::error!(
+				log::debug!(
 					target: "sub-libp2p",
-					"Attempted to send notification on unknown protocol: {:?}",
+					"Attempted to send notification on missing or closed substream: {:?}",
 					protocol,
 				);
 				return;