ALERT_PULSE_LENGTH
if (atype == ALERT_TYPE_PULSE && value_len >= ALERT_PULSE_LENGTH) {
put_message_header(ctx, ALERT, ALERT_LENGTH + ALERT_PULSE_LENGTH,
k5_buf_add_uint32_le(&ctx->negoex_transcript, ALERT_PULSE_LENGTH);
k5_buf_add_uint32_le(&ctx->negoex_transcript, ALERT_PULSE_LENGTH);