You can perform Nortel configuration using the following steps:
config ip ipfix state enable
config ip ipfix slot 1 active-timeout 60 aging-interval 60 export-interval 60 exporter-state enable template-refresh 60
config ip ipfix slot 1 collector add {NETFLOW_SERVER_IP} protocol udp dest-port {NETFLOW_SERVER_LISTENER_PORT} exporter-ip {LOOPBACK_INTERFACE_NAME} protocol-version ipfix enable true