+static adj_walk_rc_t
+adj_mtu_update_walk_cb (adj_index_t ai,
+ void *arg)
+{
+ ip_adjacency_t *adj;
+
+ adj = adj_get(ai);
+
+ vnet_rewrite_update_mtu (vnet_get_main(), adj->ia_link,
+ &adj->rewrite_header);
+
+ return (ADJ_WALK_RC_CONTINUE);
+}
+
+static void
+adj_mtu_update (vnet_main_t * vnm, u32 sw_if_index, u32 flags)
+{
+ adj_walk (sw_if_index, adj_mtu_update_walk_cb, NULL);
+}
+
+VNET_SW_INTERFACE_MTU_CHANGE_FUNCTION(adj_mtu_update);
+