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-rw-r--r--vnet/vnet/interface.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/vnet/vnet/interface.c b/vnet/vnet/interface.c
index d84c8b03bc2..24f9cbc9aff 100644
--- a/vnet/vnet/interface.c
+++ b/vnet/vnet/interface.c
@@ -354,7 +354,9 @@ vnet_sw_interface_set_flags_helper (vnet_main_t * vnm, u32 sw_if_index, u32 flag
{
si_sup = vnet_get_sw_interface (vnm, si->sup_sw_if_index);
- if (flags != (si_sup->flags & mask))
+ /* Check to see if we're bringing down the soft interface and if it's parent is up */
+ if ((flags != (si_sup->flags & mask)) &&
+ (!((flags == 0) && ((si_sup->flags & mask) == VNET_SW_INTERFACE_FLAG_ADMIN_UP))))
{
error = clib_error_return (0, "super-interface %U must be %U",
format_vnet_sw_interface_name, vnm, si_sup,