vnet: introduce error state for sw interfaces

[vpp.git] / src / vnet / interface.c

diff --git a/src/vnet/interface.c b/src/vnet/interface.c
index 24f216f..41e2186 100644 (file)
--- a/src/vnet/interface.c
+++ b/src/vnet/interface.c
@@ -482,6 +482,13 @@ vnet_sw_interface_set_flags_helper (vnet_main_t * vnm, u32 sw_if_index,
          vnet_device_class_t *dev_class =
            vnet_get_device_class (vnm, hi->dev_class_index);
 
+         if ((flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) &&
+             (si->flags & VNET_SW_INTERFACE_FLAG_ERROR))
+           {
+             error = clib_error_return (0, "Interface in the error state");
+             goto done;
+           }
+
          /* save the si admin up flag */
          old_flags = si->flags;