diff --git a/munin/uptime_switch b/munin/uptime_switch
new file mode 100755
index 00000000..7cb6443d
--- /dev/null
+++ b/munin/uptime_switch
@@ -0,0 +1,30 @@
+#!/bin/sh
+#
+# Plugin to measure uptime. Especially the average and max values on the
+# bigger graphs (yearly) can be interesting.
+#
+# Contributed by Antoine Durand-Gasselin
+
+if [ "$1" = "autoconf" ]; then
+	echo yes
+	exit 0
+fi
+
+if [ "$1" = "config" ]; then
+
+        echo "host_name uptime.switchs.crans.org"
+	echo 'graph_title Uptime'
+	echo 'graph_args --base 1000 -l 0 '
+	echo 'graph_vlabel uptime in days'
+for i in multiprise \
+         `host -l adm.crans.org | sed -ne 's/\(bat[a-u]-[0-9]\).*$/\1/p'`; do
+	echo "$i.label uptime $i"; done
+	exit 0
+fi
+
+for i in multiprise \
+         `host -l adm.crans.org | sed -ne 's/\(bat[a-u]-[0-9]\).*$/\1/p'`; do
+  (snmpget -O v -v 1 -c public $i sysUpTimeInstance 2> /dev/null || true) | \
+  perl -nle "{ /[0-9]+/; print sprintf(\"$i.value %.2f\", ($& / 8640000));}"&
+done
+