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-rw-r--r--doc/user/basic.rst7
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/user/basic.rst b/doc/user/basic.rst
index 8395087e8d..5509fd5f0d 100644
--- a/doc/user/basic.rst
+++ b/doc/user/basic.rst
@@ -199,6 +199,13 @@ Basic Config Commands
will only be printed if it matches on one of the filters in the log-filter
table. Can be daemon independent.
+ .. note::
+
+ Log filters help when you need to turn on debugs that cause significant
+ load on the system (enabling certain debugs can bring FRR to a halt).
+ Log filters prevent this but you should still expect a small performance
+ hit due to filtering each of all those logs.
+
.. index:: log-filter clear [DAEMON]
.. clicmd:: log-filter clear [DAEMON]