diff --git a/doc/SPOE.txt b/doc/SPOE.txt
index 1012f35..83c52b1 100644
--- a/doc/SPOE.txt
+++ b/doc/SPOE.txt
@@ -156,6 +156,8 @@
     <name>   is the name of the agent section.
 
   following keywords are supported :
+    - maxconnrate
+    - maxerrrate
     - messages
     - option continue-on-error
     - option var-prefix
@@ -163,6 +165,18 @@
     - use-backend
 
 
+maxconnrate <number>
+  Set the maximum number of connections per second to <number>. The SPOE will
+  stop to open new connections if the maximum is reached and will wait to
+  acquire an existing one. So it is important to set "timeout hello" to a
+  relatively small value.
+
+
+maxerrrate <number>
+  Set the maximum number of errors per second to <number>. The SPOE will stop
+  its processing if the maximum is reached.
+
+
 messages <msg-name> ...
   Declare the list of SPOE messages that an agent will handle.