--- bonding.sh.orig	2011-12-12 15:32:18.134865295 +0100
+++ bonding.sh.orig	2011-12-12 15:32:51.515122417 +0100
@@ -105,6 +105,10 @@ 
 		for s in ${slaves}; do
 			[ "${s}" = "${primary}" ] && continue
 			if ! grep -q ${s} $sys_bonding_path/slaves; then
+				(
+				IFACE="${s}"
+				_down
+				)
 				echo "+${s}" >$sys_bonding_path/slaves
 			fi
 		done