- listener->sub_conn[SCTP_PRIMARY_PATH_IDX].PMTU =
- vnet_sw_interface_get_mtu (vnet_get_main (), tep->sw_if_index, VLIB_TX);
+ u32 mtu = tep->is_ip4 ? vnet_sw_interface_get_mtu (vnet_get_main (),
+ tep->sw_if_index,
+ VNET_MTU_IP4) :
+ vnet_sw_interface_get_mtu (vnet_get_main (), tep->sw_if_index,
+ VNET_MTU_IP6);
+ listener->sub_conn[SCTP_PRIMARY_PATH_IDX].PMTU = mtu;