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-rw-r--r--src/vnet/interface_funcs.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/vnet/interface_funcs.h b/src/vnet/interface_funcs.h
index 120d92cb11d..dbb0549314a 100644
--- a/src/vnet/interface_funcs.h
+++ b/src/vnet/interface_funcs.h
@@ -342,6 +342,14 @@ vnet_sw_interface_is_up (vnet_main_t * vnm, u32 sw_if_index)
vnet_sw_interface_is_link_up (vnm, sw_if_index));
}
+always_inline uword
+vnet_sw_interface_is_sub (vnet_main_t *vnm, u32 sw_if_index)
+{
+ vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
+
+ return (sw->sw_if_index != sw->sup_sw_if_index);
+}
+
always_inline vlib_frame_t *
vnet_get_frame_to_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
{